The Missouri River basin project and the Mexican projects of irrigation by Panfilo R Leon A THESIS Submitted to the Graduate Faculty in partial fulfillment of the requirements for the degree of Master of Science in Agricultural Economics Montana State University © Copyright by Panfilo R Leon (1950) Abstract: 1. The main problems that face the Missouri River Basin’s agriculture are: Climatic undependability, floods, drouths, instability of farm income, and out-migration. The main problems that face Mexico’s agriculture are: Climatic undependability, drouths, floods, insufficiency and instability of farm income, shortage of cropland, and deficient agricultural technique. 2. Agriculture still is a major occupation in the Missouri River Basin. Land in farms, cropland harvested, value of livestock, output of some main products, etc., in the Missouri Basin represent a significant percentage of the corresponding figures for the United States. Mexico is also still predominantly agricultural. About 65 percent of its economically active population is engaged in agriculture* and the capital invested in this occupation Is* by far* larger than the capital Invested in any other industry* 3. In the Missouri River Basin there are approximately 5,000,000 acres Of land already Irrigated. It is intended to irrigate another 5,233,000 acres by 1975» Land physically suited to irrigation in the Missouri Basin is plentiful relative to water supply* In Mexico there were approximately 4,245,000 acres of irrigated land as of 1946* It is planned to irrigate 2,868,000 more acres by the end of 1952» The feasibly irrigable land is rather limited.* Bough estimations indicate that only an area of approximately 17,000,000 acres could feasibly be brought under irrigation* 4* Growth of the Missouri Elver Basin’s population has been variable* In recent decades the growth has been slow* Eural population has been declining# and urban population has been increasing* As of 19l|0# the rural population was 60*3 percent of the Basin’s total population* Of this percentage# 36*5 percent was farm population# and 23*8 percent was rural non-farm population* Growth of Mexico’s population has been steadily increasing* With the exception of a very slight decrease. 7.5 percent from 1910 to 1930 and 5.2 percent from 1930 to 1940, rural population has been rather constant. Contrasting to the Missouri Basin, the rural population almost coincides with the number of rural-farm population. 5. -Because of the high level of agricultural development already achieved in the Basin# the Missouri Elver Basin Project is considered as a comprehensive one* It contemplates irrigation# navigation# hydroelectric development# and so forth* Because of the low level of agricultural development in Mexico and its very peculiar physical characteristics * the Mexican projects of irrigation do not contemplate such a comprehensive development* In general# irrigation is the main concern of such programs with hydroelectric development in a definitely secondary position# TBB HISSOBBI BlVBB BASIB PBOJBCT ABD TBB BEXICAB FBOJBOTS 0PIRBI9AT10B PAWBILO Ra LBGB A m a s ig Submitted to th e ' Gp&fiwte''; Aa p a r tia l fu lfillm e n t of the rdg u irm en ta fo r th e degree o f Master of S e ieate in A g ricu ltu ral Beonomies at Montana S ta te College A - —* H@M» Major Department Bosemanfl Montana September, 1950 L 5 -5 / ->n - 2 TABLE OF CONTENTS Page so Co-4 ovn L is t o f F i g u r e s ............................... ..................... .... D edicatory ........................... . . . . . . . . . . . . . . . Acknowledgem ent................................................................................... A b s t r a c t .................................................................... .... Foreward ................. . . ................. . . . . . . . . . . . CHAPTER I . THE MISSOURI RIVER BASIN AND THE REPUBLIC OF MEXICO Problems Faced by th e M issouri Hirer Basin 10 12 Drouths ............................................................................................... 12 F l o o d s ............................................................................................................................... 13 I n s t a b ili t y o f A g ricu ltu ra l Production ............................... . . . . . 15 I n s t a b i l i t y o f Farm Income . . . . . . . . . . ...................... . * • 16 I n s u ffic ie n c y o f Ir r ig a te d Land ................................................................. 18 Problems Faced by Mexico 19 Drouths ............................................... I n s t a b ili t y o f A gricu ltu re and I n s t a b ili t y o f Farm Income . . . . I n s u ffic ie n c y o f Ir r ig a te d Land . . . . . . . . . ............................... The P o lic ie s CHAPTER I I . 19 20 21 22 THE PHYSICAL ENVIRONMENT 25 P h ysical C h a r a c te r istic s o f the M issouri Hirer B asin 25 L ocation and S iz e ................................... . . . . . . . . . . . . . . . 25 The Climate .................. . . . . . . . . . . . . . . . . . . . . . . 28 Temperature . . . . . . . . . . . . ........................... . . . 28 29 P recipitation .................................. W in d .................................................................................................................. 31 Evaporation and T ranspiration . . . . . . . . . . . . . 32 P h y sica l C h a r a c te r istic s o f Mexico 33 L ocation and S iz e . . . . . . . . . . . . . . . . . . . . . . . . The A l t i t u d e ..................... Extreme Dimensions . . . . . . . . . . . . . ................. . s a 38? 33 33 33 Table of CotitentS (Coated) Tb© Cl 5.!Hat© '0 6 b O 6 O OO O ' 0 OG O0 G O O G O O O O O o o o b Tem.po^atu.I3© » <> oo c &« «# o o g o ■# 6 « o □ « o o o P recipitation o a o d a o o * * o b e . , o o e,- * 6 »■ e o 6 CH&PTBK m « 3 k 3 k 3 T BC0H6MIC: ASPECTS kO A g ric u ltu ra l Edonbmic Development o f the M e so u rl' B ite r D asin . W Belatibti o f Physical features to the Agricultural Development o « o o « * & o a & « & o « * o * @ * o o & o * a a B rief Information Ahout Irrigation in the Missouri . a K iV S r o B a S iti 6 .6 6. o a O' O' & a ft # o 6 6 B 6 o 6 o e o e o g l%& A g ric u ltu ra l EbOhbmId Development Of BaMoo 5k Belation o f Physioal features to the A gricultural Development o * * e * o 6 & « e o & * @ @ o « $ .* &@ a @&o o @ tl, B rie f Inform ation Ahpttt I r r ig a tio n i n Mexico * .» * * c & * * o 0 65 CWTEB Ifo POPOhATlOB ASPECTS' ' 6? population o f th e M issouri Biver Basin 67 TfendS in the Total and Thrm Population »» » » * ° & , «, , ® o d 67 'Bural atid Wban Composition 0 «' 0 * « h ** a a *; »». ».■ 0 » 0 0 e 71 BeMoati Population Trends iti Total atid farm population 0 Oeographioal D istrihutioti = * = » „ = Sdral and Whan Composition o o 6 o o Baoial and Language Composition o = = Educational Composition 0 0 0 6 0 0 0 . = 0 0 0 6 0 0 6 = ** , * * o = = o=o o o == = =6 * = * = * 006000 o e 7k » * = = e o e ooo «0* 9 0 o=«oo ==* * & o o o o o 7k 7? 7® 79 80 •» Zj. Zable oaf Contents (Contvd) Page CWZBH Y=, DISPOSABLE PESOSEOES TO CGPE WITH THE PEOBLEm w*. In Mosiiee 8 ii- Hycxi1OIogi CEiI Oondi exons o O' o o o o o o o o o o o a » ^ » » e IM n Streams end, T yibntarisg „ » * . * , , * . & « q. ■* e P 8 i |. 6 q ' In the, Misgeuri E iw r Sasin Hydrolo^xes,! Cendatiens I r r ig a b le Len^ q o o q o «q « o » o o o o qo o ,a o o <? q CHAPTEE VI, 88 q o o o o o o o o qo o d q » » o q q d 88 q * 0 q ^l THE. COALE 92 In th e H g so u ri Basin Te I r r ig a t e Mere Land o o o o « e oo o » o © o © o » , Control Ox Eieede ° o v a *# * , , o o , p.» , 0 0 , 0 S ta b ilis a tio n of th e A g riculture - .«■ » , , . . , , . o . S ta b ilis a tio n of th e Pam Income * « .» ». , «... = , , ,, .» •Other' Obj e e tlte g , * « * •« , « » 0 , 0 0 0 0 , 0 c 0 In Meniod 8 6 9 2 » q ,0 » , » « 0 0 d * q a 0 c 9Zl 9 ^ «’ 4 O e oi q 95 % . # 95 97 To I r r ig a t e More Land * q, > »- » , * » q . , * , , q q , * » 97 Other Gbj ectxveg 0 o o , « q » 0 , •, , 0 , 0 0 & , , , 0 0 0 0 0 98 CSAPTEE VlIq GOSGtoSlOSB LITEEATUEE GOSSULTED io o ' 190 MS'$ Of PISUBES Por1 fhe M issouri Biver Baein Piga la Sross Pam Income from Sale o f Grops^ M issouri B lfer S a s in ' pigd Ba M issouri B ifen Basin Boundary end S ta te s Within the, S'asin , Pigo fro .general S h ta tlo n o f th e liv e r Basin in tW W i t e i S ta te s 1 ■Pigo I4.0 Average Annual P recip itatio n , in th e lis s o u r l l iv e r Basin Pigo 9» Moisture leg io n s i n th e M sscm rl Biver -Basin 'Pbr .Ie^ieu Pige % Bones o f tem perature in Mexico. H g o 60 B a in fa ll Map o f Menioo- Showing V a r ia tio n in th e ' Aferage Amount o f Annual B a in fa ll from IfrZl to !9 3 9 SSgo 7« Location o f D is tr ic ts of Irr ig a tio n in Mexioojj 1$1}B SSgo 8b A ril* Humid:* and Interm ediate' Hydrographic Zones in th e Bepuhlio of Mexico 6 DBBIOAlBOSr* the MWMWi BoamaA* WitaaA ana to the mC8m<&rnOIOBAL D2 Mm(ma9B& a* Ohapiagoj, State $ t Hesiee9 ia am reOogmltiw. for the leaovieage of s el © stifle agviml'hxre they prOvMefi Bies ttvis granting m a righ t t o help l a the solu tion of prohleOT la A grloaltaral BoonoMoss, Am rm Lm W BB Adtnmtfledginarb Ie <to© to c e rta in persons' Vnose help slid Valnehle advioe made p o ssib le the development and completion o f this-, papers Especial reco g n itio n should go to* Br*- Md- & EELSO0. head o f th e Bepartsient of A g rio u ltn ral Beonomiee and Bxrad Soei-Ologyp fo r h is valnahl© advice and helps Dro < ^ B * B R W 0 B & o a d a r* IAtlOH 8^ TKOMPSGB^ f o r t b s l f h elp and advices The s t a f f o f the A g ricu ltu ral Economics M hraxy and o f the la in L ibrary a t Montana s t a t e Oollsgo # o were very kind in making a v aila b le the b ib lio g ra p h ic .m ateria l I noededs- ' . ;i ■ - - ^ 11- . . A B sm et Io The main pnobjLems th a t face th e Missouri Eiifer BasizVs ag ri­ c u ltu re a r e 5 C lim atic undepC nhahilitya floods^ drouths^ i n s t a h i l i t y of farm income* and out-m igrationo fhe main problems t h a t face Mexicotp a g r ic u ltu r e ares Blim atie undependability* d ro u th sa. floods* in su ffic ie n c y and i n s t a b i l i t y of farm income* shortage, of cropland# and d e fic ie n t a g ric u ltu ra l technique* 2* A g ricu ltu re s t i l l i s a major occupation in the Missouri Hiyer Basin* Land in farms# cropland harvested* value of liv e sto c k * output o f some main products* etc*# in th e M issouri Basin rep re se n t a s ig n if i­ cant percentage of the corresponding fig u re s fo r the United States* Mexico i s also s t i l l predominantly a g ric u ltu ra l* About 65 per­ cent of i t s economically a c tiv e population i s engaged in ag ricu ltu re* and the c a p ita l invested in th is occupation Is# by far# la r g e r than the c a p ita l Invested in any other industry* 5* In the. M issouri E iver Bdaln th ere a re approximately 5*000#000 acres .Of lend a lread y irrigated*. I t i s intended to i r r i g a t e another 5»235*000 acres by 1975» Land p h y s ic a lly ' su ite d to ir r ig a tio n in the M issouri B asin i s p le n tifu l re la tiv e to water supply* In Mexico th e re were approxim ately ,000 acres of ir r ig a te d lan d as of 1946* I t is planned to i r r i g a t e 2*868*000 more acres by the end o f 1952» Ihe fe a s ib ly irrig a b le land i s ra th e r lim ited* Bough estim ations in d ic a te t h a t only an area of approxim ately 17#000*000 acres could fe a s ib ly be brought under irrig a tio n * !$.6 Browth of the M issouri E lver B asinas population has been v a ria b le * In re c en t decades the growth has been slow* Eural population has been declining*, and urban population has been increasing* As of I 9I4O* the r u ra l population was 66*3 percent o f the B asin’s t o t a l popu­ latio n * Of th is percentage* 36*5 percent was farm population# and 23*8 percent was ru ra l non-farm population* Growth o f Mexioovs population, has been s te a d ily increasing* With th e exception o f a v ery s l i g h t decrease* 7=5 percent from 1910 to 1930 and 5*2 percent from 193®' to 1940* ru ra l population has been ra th e r constant* C ontrasting to th e Missouri Basin* the ru ra l population alm ost coincides w ith the number of ru ra l-fa rm population* 5* Because of the high le v e l of a g ric u ltu ra l development already achieved in th e Basin* th e M issouri E lver Basin P ro je c t is considered as a comprehensive one* I t contemplates irrig a tio n * navigation# hydro­ e le c t r i c development# and so forth* Because of the low le v e l of a g ric u ltu ra l development in Mexico and i t s very p e c u lia r physical c h a ra c te ris tic s * the Mexican p ro je c ts o f i r r ig a ti o n do not contemplate such a comprehensive development* In general# ir r ig a tio n i s the main concern of such programs w ith hydro­ e le c tr ic development in a d e f in ite ly secondary position* A g y W lta z e * one of the f i r s t and fundamental oocnpations froBi ' Whieh mankind obtains goods to s a tis f y i t s subsistence n eo essitieS s i s an a c t iv i t y e s s e n tia lly dedicated to d isco v er, d ir e Oti and e x p lo it m a te ria l resources contained in the land and to control a l l kinds of phenomena SuOh as p h y sic a l, chemical * b a cterio lo g ica l, and atmospheric t h a t i n one way or another may have some connection w ith .to ils* . Other th in g s being equal,, ■d i ^ s im ila rity of . s o ils and phenomena acting upon, •• them w ill b rin g d is s im ila r ity in a g ric u ltu ra l c h a ra c te ris tic s ^ Sut a s long as s o il and i t s a sso c ia te d phenomena* including th e Culture o f th e society* are alike* a g ric u ltu ra l ch aracteristics w ill a lso be much the same no m atter where the place may be« Jn t h i s th e s is an attem pt w ill be made to s e t fo rth some sim ila r c h a ra c te ris tic s * m ostly derived from clim ate* and some d is s im ila r C h arac te ristic s* m ostly d eriv ed f rent c u ltu re of th e so ciety * t h a t e x is t between, th e a g ric u ltu re Of th e ES.SBOtiri Biver Basin and th e a g ric u ltu re of the Bepublie of Mexico* 1■ Ihe th e s is was developed from b ib lio g rap h ic m ateria l ,c ite d herein In th e case of Mexico.* f o r which there- was Only lim ited m aterial* th e knowledge* judgment* and opinions o f th e author were used fre q u e n tly to c a rry th is t h e s is to i t s completion^ , ' ' . : - 0W 3?BB, y* 38B *1888031 BIVBR %6@I# iMD ERB a8FO#&10 0F]KB&I#@ From an a g rlo u itu m l p o in t of view, th e lig s o n r i Hiver Begin hag, many c h a rac ter i s t i e s th a t a re very m oh the tame as those o f th e Repuhiio ■o f 'MexiOo,*- S im ila ritie s , between th e .Msgduri Basin and: Mexioe are of th re e 'general k in d s; " F irst# th e environmental fo rc e s shaping the development o f the a g ric u ltu re are very much a lik e ^ second*, the ru ra l ' population re p re s e n ts a considerahle percentage o f the t o t a l population|, land th ird # the general economy of hoth environm ents, s t i l l depends to a, larg e extent on a g ric u ltu re since thug f a r in d u s tria l development • plays h u t a email role, in th e W l e economy c i sack* But# a s may fee expected# the, M stfeuri B ifer IaS in algo exhifeits differenoeg when compared w ith Hexioo* - Ag main differences* th e f o lIotrMg may fee mentioned* _ F irst# th e M sso u rl l i f e r Basin I s feat a region w ith in the g re a t country of th e B aited S tates# and# therefore# can fee- helped in the s o lu tio n of i t s problems by th e B n ite d 'S ta te d as- a whole .country-c ' • Mexi.oo rep resen ts a Tidiole country in I t g e l f s and# 'therefore# .i f a s s is t ta a c e f o r th e so lu tio n of i t s problems i s fo be asked*, i t hag to fee looked for- through In te rn a tio n a l channels or M th ia h e r own ,boundaries* ,secondly# h isto r ic a l f a c to r s , social conditions# and general c u ltu re of" . 1. 11, ' ' - - ' t h e . farm, population of the Missouri Basin hafe been, q u ite d iffe re n t from th o se of Mexico* The v a rie ty o f Circumstances j u s t mentioned hag le d to d is s im ila r ity i n th e le v e l of t o ohnologieal d&r&lopment reached by a g ric u ltu re in each area* The ‘Missouri Basin has already attained an advanced,.-agricultural technique* while Mexico e tid d . i t developing i t s a g ric u ltu re under poor a g ric u ltu ra l t CClmiquee At is w ell known5 clim ate i s a n a tu ra l fence th a t plays a g rea t ro le in th e development of a g ric u ltu re ^ Other th in g s "being equal „ a favorable clim ate favors a su ccessfu l a g ric u ltu re,, end* conversely* an unsuited c lim ate tends to produce an unsuccessful agriculture, fhe second condition i s the one which* g e n e ra lly SpeaMng,* p re v a ils in th e M issouri River b a sin , ■P re c ip ita tio n ■and temperature* two; main com?. .pbnent fa c to rs of clim ate* occur in an Undependable p a tte rn both through tim e and throughout the a r e a . of th e M issouri Basin,' . Sometimes good weather comes* as i t d id a f t e r 19W* and. sometimes bad w eather comas, as I t did during most of th e 1931fW decade, "What is the probable frequency o f occurrence of th ese .a lte rn a tiv e periods o f good and bad weather? So. .. person knows* and i t i s p re c ise ly th is c lim a tic c h a r a c te r is tic th a t 1.# the main .'source o f the problems;, th a t, face th e farm ers o f th e ' M ahouri Basin, Mexico* -tiien. considered as, a whole country*' i s by no meant more, b le sse d th an th e Missouri Basin in i t s clim ate 'so f a r as sta b le and su cce ssfu l a g ric u ltu re is. eonceraedo The Mexican t e r r i t o r y fac es undependable p re c ip ita tio n and temperature which make t h e i r appearances a t ir r e g u l a r i n te r v a ls , and whose occurrences nobody can predict#, $0*. i n a general sense* one may say t h a t th e .M issouri River Saein and 'Mexico face 'sim ila r1unsu ited c lim atic c h a ra c te ris tic s fo r the development 1 Cf th e ir a g ric u ltu re # About $0' percent of th e M issouri.Basin *s area i s S€toi«arld! $0 percent i s the corresponding fig u re f o r th e land are a of Mexicoo , = 12 =» Ag f a r as seasonal v a ria tio n of. e ffe c tiv e moisture, i s coneemed.j, about' 80 percent l / o f the Basin area has l i t t l e or no w ater Surplus Iti m y season, and only about 10 percent l / o f th e land has l i t t l e o r no w ater d eficien cy in any season,,1 fhe analogous fig u re s f o r Eexidh a re h9'9 p ercent and 12<>8. p ercen t, respectively^ S im ila rity Of environmental fo rc e s that, shape a g ric u ltu r a l develop= meat have re s u lte d in th e M issouri Eiver .Basin atid Mexico’s confronting Very S im ilar problems in carrying on t h e i r agriculture= Following i s a b r i e f d e sc rip tio n o f some of the more notable problems= Problems Faced by th e M issouri Elver Basin Drouths o One o f th e m an ifestatio n s o f th e uneven d is trib u tio n o f r a i n f a ll in th e M issouri Basin i s th e drouths th a t occur i n some p a r ts o f the Basin sim ultaneously w ith constant m oisture su fficie n cy in o th er p a rts = Ihe M issouri Elver Basin has been s tric k e n in term it* ta n tly by severe drouths* They occur in an irre g u la r p a tte r n , and i t i s p re c is e ly t h i s u n p re d ic ta b ility th a t males more d i f f i c u l t th e adoption. . o f any sin g le crop system th a t i s always w ell adapted, to clim atic conditions* $he more rec en t serious, drouths were those o f I93h and 1936» th e 60*year period reaching baOk to 1889,. th e M issouri F a lle y S ta te s have experienced eleven severe d ro u th s a v e ra g in g alm ost one■drouth ' ■ ' . I......... .... ......................... I/ ' . ■ ' Percentages estimated from map e n title d ‘’Seasonal V ariatio n of BffeotiVe Moisturert., geographical EeviW c January, 19^.8, p* 9k* In y e ar in every five*. These excessive dry periods occurred i n 1889» 1890» m k , 1901* 1910» 1917, 1930* 1931» 1934» and 1936« A ll of the ?&ssouri Y alley S ta te s were not a f f lic te d U nifdraly i n each of th ese years'* M t a l l of Mem were s tric k e n in te rm itte n tly * . The drouths do n e t take place* however* throughout the e n tir e B asin*.hut are more in te n se and mere freq u en t i n th e Upper and Western p a rts o f , the Basin0 He attem pt was made in th is th e s is to .analyse th e e ff e c ts of d ro u th s, since, they a re w ell known: hy th e farm ers as w ell a s by a l l those persons fa m ilia r w ith ag ricu ltu re* fo r our purpose i t w ill su ffic e merely to remember th a t some of the mere n o tic e a b le e ff e c ts ares ( l ) fa ilu r e of a crop, and* as a re s u lt* M gher p ric e s f o r the a ffe c te d a g ric u ltu r a l commodities^ (2) how farm income* and* -as a result*, lack o f payments- o f the fa rm e r's debts with, i t s accompanying fo reclo su res and. d is tr e s s to the farm ers and th e ir'fa m ilie s * , and th e F ederal, government's burden -of g ran tin g fin a n c ia l aids (3) Emigration of some farm ers toward more favored areas* and the re s u ltin g lo ss o f c a p ita l through d e te rio ra tio n of r e a l estate*, land improvements* buildings* and farm equipment» Floods* Floods i n other p a rts Of th e Basin* as in th e case of drouths* are one o f th e m an ifestatio n s o f th e r a i n f a l l 's Weven d is tr iM tio n 0 I t seems rather contradictory* however* to speak of Hoods- i n th e same b rea th w ith drouthss. B rie fly , drouths, a re IaCk- o f wafer* whereas flo o d s a re the con trary a that i s , p le n ty o f w ater, .however*, what seems a contradiction- disappears when one considers the fa c to rs t h a t cause f lo o d s ^ ia te r m itte n t heavy r a in s and m elting snow# Contrary to the drouths.* the. flo o d s occur in t h e . lower p o rtio n o f th e Basin® ^ xk- ^ G liarao taristic of the Missouri Eivor Basin a re floods of t w generaltypes,) the. Maroh and th e June floods* .. Eie Mafoh floods r e s u l t from m elting eno?/ in the p la in s of th e Upper Basin and th e break-up o f r iv e r I e e a- aocoKtpanied by l i g h t p r e e ip i t a i l on» Snow m elting in the headwater mountains0 accompanied by h eav ier r a i n f a l l ^ produces the; June flood which o rd in a rily i s much mere d e stru c tiv e than the March floods, fhe p rin c ip a l e f f e c t of a March flo o d i s the d e lay Sn p lan tin g u n t il the f i e l d s a re dry enough to he worked® The June flood delays th e prepaw a tlo n o f lan d and d e stro y s growing crops much too l a t e in the season fo r p la n tin g or re p la n tin g to be p ro fita b le * As do drouths a floods b rin g tro u b le to the farm ers and to the in s titu tio n s re la te d to ag ricu ltu re* These tro u b les are almost, o f the same n a tu re as are those brought by dro u th sa th a t I e a d is tr e s s t o the farm ersa d e te rio ra tio n Of the farms and th e ir appurfsnanoes» expenditures o f Psderal Uoverment fo r r e l i e f a and so forth® Sn a d d itio n a the floods cause s o il erosion^ and sometimes make , f e r t i l e land poor by depositing s t e r i l e s o il upon it® Average annual flood damage, a g ric u ltu ra l and non* a g ric u ltu ra l a probably exceeds $7$ea00(J fo r the Upper Baeina. • SlSji7^1 #000 f o r th e bower BasipA ahd $1$»IOyaO(X) fo r .the ,e n tire Baain*' In a century o f record th e re have been floods' in ISSh9 ISS la 1903# 1908a 1909, 1 0 ,9, 1927, 1935a 191#* 19^3 W 19W# !h ere were th re e sep arate flo o ds in 1943 aloneg i n 1943 sis?# covering a p erio d of n e arly two and one6aI n l f months® The-highest was,i n 1884, b u t th e re are'no adequate records# and th e damage has never been estim ated# although i t -was Small because of th e undeveloped s ta te of the ■country# By f a r the most d e stru c tiv e th re e years in the River's history were 191*2 , 19h3s and l9hh« I n s t a b il i ty of A g ricu ltu ral Production. By a g ric u ltu ra l production in s ta b ilit y , I mean th e ups and downs in the volume o f production caused by drouthse f lo o d s ,. and changes in th e techniques and p ra c tic e d in agri­ culture such a s change in crops, adoption o f new v a r ie tie s o f Crops,: ■ change in type of farming, enlargement, o r reduction i n sis© o f th e farm U n it, movement of people in to a g ric u ltu re o r Out of i t * and so forth© G enerally speaking, th e re are a t l e a s t two types o f a g ric u ltu ra l production in sta b ility * One i s t h a t d erived from technological advances in a g ric u ltu re t h a t are taking place co n stan tly in a world o f progress* Obviously,, one cannot be a g a in st tech n o lo g ic al progress because i t . causes t h i s type o f i n s t a b i l i t y , b u t ra th e r the concern in th is regard, is ' how-" to a d ju st a g ric u ltu ra l p ra c tic e s to technological advances w ithout su fferin g d e te rio ra tio n in a l l kinds o f C apital already in agriculture* The second type o f a g ric u ltu ra l production i n s t a b i l i t y i s th a t brought on by u n su itab le weather* This may a ff e c t a g ric u ltu re with too much r a in f a ll (flo o d s), o r too l i t t l e r a i n f a l l (d ro u th s). There -are o th er fa c to rs resp o n sib le fo r a g ric u ltu r a l production i n s t a b i l i t y such a s p e s ts and d isea ses, but those derived from unsu itab le w eather.are the mbst drastic© • 3to most of th e Missouri River Basin the a g ric u ltu ra l i n s t a b i l it y Caused by u n su itab le w eather has been most prevalent*' Brouths .and ^.oodfs W re forced Scaae farm ers to mow opt- pf the stric k e n places Sr @Rt of the B&sln* A gfld*!i ^ r a t W ta h llity I* the #ia@oq*& Basin i# ; Qm W iy im portant f a c to r accounting fo r th e .@lovr growth, of S e ' B asin's papnlet&oa. # e W t a h l i l t y o f A griG kltare 1# the Baal* aleo a ris e s teems#- th e Cl W M e v a ria tio n s appear in 'a -v e ry lrre g ttla r pattern* W eaW m en c W e t p re d ic t long I* ^v aW -W lM i any degree o f aoedrety ,how add # ie n r a i n f a ll and tem perature changes #1% take place® W w re h e s ita te t o Wka long-run plans p r ooramititontSa and some a g rie t2 lS r.a | in s titu tio n s ^ such as a g ric u ltu ra l C redit .Agenciesii cannot help farm ers with th e ir problems to the same degree th a t i s p o ssib le in ' a re a s o f g re a te r clim atic 'O ependabilitye W t a b i l i t y o f Pam Income= W th in k s o f W t a b i l i t y o f farm income as th e c o ro lla ry of a g ric u ltu ra l production in sta b ility ® She M issouri Hiver Basin i s , perhaps $ th e r© #on of the h a lte d S ta te s Mteare f a m W o w has been most unstable,: ;guoh i n s t a b i l i t y o f farm ' W cm e may cow e ith e r because o f unfavorable weather or because' o f • ' !Lemr p rices fo r far* p r o w # * W prW ip&l factors^ drouth h as by f a r th e g re a te s t e f f e c t in'-making farm -Income |,ow® . W W d w athts d e o W t W zoasons in ow e *rd cbvW ea' the crop y ie ld s become v ery poor,- and oftentim es considerable Orpp acreages a re M d e te rio ra te d t h a t i t i s no t w orthw hile.to harvest %em« , W la s t drouth recorded was th a t o f th e 19^W 9W p e rio d , whioh^ to g e th e r with depression p riced, reduced farm Income more- W h $0 percent below th e average farm income o f th e peM odt . cen t I H I Fig* I Sources Sroee Perm Income from S a le o f Crope, M issouri g iv er Baeius Index Mumbere (l9 2 lr U > 1 0 0 ) 192i*»19U7» M eeou rl River Baein* A g r icu ltu r a l Prorrz n., U nited S ta te s Department o f A g ricu ltu re, A p r il, 1^49. * 18 I f o th ar things remain m Ohangods p ric e s of farm products sa y go up during lo c a l a re a drouthss hut such in c re a se in farm, product p ric e s vrf.ll n ot o ffc e t th e low production, and, furtherm ore, the p ric e s Cf th e in p u ts that farm ers have to buy w ill not duel Ine0 IPllovjing the drouth of th e 1931 ^ 19W period,# th e re were almost id e a l weather conditions and the r e s u lt was a g re a t farm income made up by a high production and high prices* She p ric e s were boosted by unusual demand of war conditions* In su ffic ie n c y o f I r r i gated lend* fhere is in s u ffic ie n t ir r ig a te d lan d in the M issouri River Basin# and even in th e United S ta te s viewed no a whole* Many people# p rin c ip a lly o u tsid e o f the Missouri Basin area# ask why the Federal. Government should embark « b rin g in g in more ir r ig a te d land# when th e JSaiioa i s facing a g ric u ltu ra l surpluses* The question may be j u s t i f i e d i n terms o f lo c a l p rojects# from a very sh o rt run p o in t o f view# and o th er sp e c ia l circum stances# But when ohe r e la te s the ir r ig a tio n p ro je c ts to th e e n tire Wcsioa# in a long run and under normal circum stances of th e Basin# one concludes th a t more i r r ig a te d land i s needed in th e United S ta to ss but p rin c ip a lly in the Missouri Biver Basin* fha so -c a lle d a g ric u ltu ra l surpluses a re tru e fo r a very few products lik e wheat and potatoes# b u t such surpluses were brought on by abnormal war conditions# some o f which# perhaps# s t i l l are working but w ill n o t endure forever* As o f about d u ly of 1943# only appro.riiaately 6 percent o f the t i l l a b l e land In ihe a rid and sem i-arid region of th e Basin was irrigated* When One edttsMera th is px-oportim o f ly p lg a ted lm d m& reo& lls th e mfavop= a b le iyeathey for agrdoultupe th a t p revails 1% m eh -&£ # e B asin5 one oannot b u t eonelude t h a t 1» the K isso u ri S l W S&sih mare Irrlg a tlo m ■ i s neededo PhrtkeWPes one must bear in. mind, that the ,stabilisation o f agrieu lfu w not the inorsase of Irrigated land i s the .main Obiedtife0 In general 3 the stabilisation o f agrieulfape t i l l reduce emigration from the SasinjTand> therefore^ w ill allow for an increase #f the Sasiufs population# .f$ie i r r ig a ti o n projeots ape f u r th e r j u s t i f i e d mb# one think# of o th e r b e n e fits t h a t go alo n g 'w ith it* ' -Sbwep.,, flo o d OOntfels and. m v ig a tlo n may b rin g as mueh b e n e fit m 'ir r ig a tio n alone would "brings • ,.v ■ ' fhus-s from the foregoing,, i t ' seems-'- th a t .a ll tW W denob i s . in - f a w .. • ' '/ ' o f th e projeots o f ir r ig a tio n thus f a r undertaken in the Missouri, ; ... '..-V / v :i ■ W e r Basin* BrbMbmS-' faced, by # % !# : hrouths* Brouths a re b u t one m an ifestatio n o f u n s u ita b ility o f weather for agriculture* Brouths h a te ootmweti -rbry' often@ to d th e y u s u a lly oeeur when crops a re in -g re a te s t need o f molSturb= ' fhe p o rtio n s o f the t e l e a n t e r r i t o r y most stric k e n by drouths a # th e C entral M e# and th e B b r t h w 'p art of Mexico# M Eexioo a c tu a l rain#" f a l l fre q u e n tly d e v ia te s w idely from- average o f ^normal’6 p rec ip ita tio n # the d ev iatio n o f a c tu a l precipitation ■from, average -oOcurs, unfortunately^ during th e c r i t i c a l growth ,period, of th e crops, and in- those, -areas' where crop production i s Biost Im pdrtant0 As in the M ssouri Birer Basin# considerable acreages are some* ■tim es n e t M rre s te d ,in Mexioo Mcan.se o f the d e te rio ra tio n o f the crops, because o f drouths= Bxmple*: Ojidal lan d was not harvested= In 19i!0» 59=93 percent o f t h e , seeded Jhere were several fa c to rs because of which th e crops were l o s t , but drouth accounted fo r approxim ately 7 k p ercen t of th e unharvested land= i n s t a b i l i t y of Agriculture .and i n s t a b i l i t y of Be ' ir r e g u la r d is tr ib u tio n o f r a i n f a ll in JfexiCbr b oth through th e rain* f a l l season and throughout, th e country# b rin g s as a n a tu ra l consequence i n s t a b i l i t y of a g ric u ltu re and farm income and. i n s t a b i l i t y In a ll the r e la te d a c t i v i t i e s as well*. Ihen ra in y Seasons gome,,, th e farm ers have good,-crops#, and, therefore# a s a tis fa c to ry ' income from the 'sale o f crops= Be" c ontrary s itu a tio n p re v a ils .when th e ra in s .f a il* Be two p rin c ip a l fa c to rs' causing i n s t a b i l i t y o f a g ric u ltu re a re drouths and floods= Gne can hear com plaints from th e farm ers o f th e Central Ifesa about poor crops caused by in s u f f ic ie n t ra in fa ll= Qn th e other ten d # ,one a lso le a rn s th a t the: farm ers of the. southern p a rt o r . Cf th e northwestern, p a rt o f Mexico# one of th e r ic h e s t regions, of th e country^ have l o s t t h e i r crops because' floods have occurred= AS in th e case o f th e Missouri W e r Basin* th e flo o d s not only make a g ric u ltu re U nstable an d reduce farm income, but they a ls o d estro y p ro p e rtie s and lives=.. With v ery few exceptions#'.the fed eral Government has to fa c e lo s s e s suffered by the e jld a ta r io s , and although 2% «® causes o th e r than purely weather e o M itio n s a re responsible fo r such lo s s e s , drouths md' fltiode are b y ■far the, inoet Im portant eatteeS:* Onee a g ric u ltu re and f a m .IuobW haye become u n sta b le . I t la an easy m a tte r te; plotdre,- th e '^oneeeufeubas $ ; .In s ta b ility ' in' p ric e s of farm p ro d u cts, la c k of loan repayments^ foreclosures.^ and so forth* bed Land* ,Insufficiency o f ir r ig a te d Ismd in. Messleo may be considered from 'tto. p o in ts o f riew» f i r s t , by consi­ dering -sdiat proportion of the possible, fa m in g a re a is. a c t u a l l y .i r r i ­ gated I w d 0 and Secondly0 by considering what proportion, of i&e fe a sib le ir r ig a b le land is, a c tu a lly irrig a te d # As f a r as the f i r s t poin t o f t i m i s Concerned, i t i s estim ated th a t as o f 19i|S th e re was an i r r i ­ gated a re a of about 4s877,000 a c re s, which con stitu tes about 8 « | pernCent o f the p o ssib le fam in g area o f Mexico (58^bO 0OOO acres)# According to plans f o r ir r ig a tio n and the a c tu a l p o lic y of ir r ig a tio n Se' far,, i t i s expected to raise, th e .percentage of ir r ig a te d land up to 12*1 p ercent by the- fend of' %$$&*. from the second standpoint and aleo referring to i$4&* i t i s estim ated that the 4*877*000 acres alre ad y brought under i r r ig a ti o n re p re se n t 28=7 p ercen t o f .XT0OGOfrOOO acres which are estim ated to be fh# lim it o f fe a s ib le ir r ig a b le laud* - I t IS expected t h a t t h i s 28=7 p e rc en t w ill be 41*8 percent by th e end o f 1952* from the feasible- ir r ig a b le Iw d sta n d p o in t, i t appears th a t I e x io s has already made g re a t headway In irrigation® ,This i s tru e when’on©- thinks' o f the efforts-, and the expenditures that «• 22 -wthe FeSoraI Soveraw at has- made in xrorking out th is problem^ hut 3 am n o t Quito sure i f the X'f^OOQ^DOO acres are the lim it o f fe a s ib le irrigab le laado Furthem ores i t I s worthwhile to- mention the possi­ b i l i t y o f bringing under c u ltiv a tio n about 17»000»000 a cres on th e tr o p ic a l lead s where i r r ig a ti o n w ill not. he required, hu t th is is a m atter o f g e ttin g those tro p ic a l la n d s ready by means of clearing^ S a n ita tio n j, and so forth# Given the u n s u ita b ility o f the climate fo r Mexican a g ric u ltu re^ and tak in g in to c o n sid era tio n th a t most' o f th e land depends upon seasonal r a in fa ll# i t seems doubtless t h a t ir r ig a tio n i s im perative end i r r ig a ti o n w ill be considered ln s u ffi c is n tly developed so long as th e re may be unexhausted p o s s ib i l i ti e s i n t h a t fie ld # Fhe P o lic ie s S im ila r problems demand sim ila r p o lic ie s to solve them# and th a t i s why both th e Federal Government of th e Gnited S ta te s and th e Govern­ ment o f Mexico have p ro jected very s lm lla r plans f o r the so lu tio n of t h e i r a g r ic u ltu r a l problems# Fbs W ite d S ta te s Government has planned development o f th e w ater resources o f the. Missouri Basin through the provisions of the Missouri Bivor Basin Project# also known as the PickSloan Plan# Fhis plan contemplates b ringing under i r r i g a t i o n a good deal o f a g ric u ltu ra l Im d in the Basin and to take care of the floods t h a t occur r e la tiv e ly often in the.low er Missouri Basin# I t i s also a program to conserve and to use the Tmtors of the ItLesouri Kiver in the meat comprehensive way# -On th e o th er hand# the Federal Government o f = 23 = jSostioo a lso has fo m n la te d sp e cia l programs to develop w ater resources W t to p r o v i d e by so Io in g 8 some a id to th e farmers^ Many proMsais o f farm management^ far® financings and farm popu* l&t&on adjustments w ill a rise in the MsBouyi Biver Baaba and in Be*!** #eam bringing in to ir r ig a tio n agricultural land* th at new are being farmed under the dry-farming syetemo T&en t h is th e s is w s planned, i t vraa thought t h a t m analysis 8 comparison, and c o n tra s t of such problems o f th e two p ro je c ts would be worthwhile in order to fin d out which of th e techniques used in the development o f th e Basin area could be applied to th e development of the Mexican p ro je c ts o f I r r ig a tio n fo r th e achievement o f more success^ f u l re s u lts * However, th e la c k o f a v a ila b le d a ta on E ex iw i n the College l ib r a r y and lac k of tim e req u ired t h a t the th e s is be of a d e s c rip tiv e n a tu re concerning fhe M issouri IHvcr Hacjn P ro je c t and # e M #lcan P ro je c ts o f irrigation* th erefo re* being o f a d e sc rip tiv e nature only, i t s value l ie s i s i t s tr a in in g in methodology.? th a t is * tra in in g In the lo g ic a l process th a t might be followed in th e development of a to p ic in a g ric u ltu ra l economics and B tra l sociologyo f h ls th e s is a ls o may serv e t o poin t out t h a t whenever an e n te rp rise ' in i r r ig a ti o n i s undertaken, th e re ore e th e r uses o f w ater th a t might be developed in order to develop w ater resources in tb<* most comprehensive way and to ' reduce th e costs of irrig a tio n * She follow ing shoptors contain s t a t i s t i c a l inform ation, discussion. md, GOSBneats ooaoeming the, physical oaviyomnent of the IB ssottrl Sir©? S a sia and o f MeKicoi, t h e i r problems and th e ir resources and p o lic ie s thus f a r formulated w ith Wiich to work out t h e i r problems, ■ » <mp9#a i i , « m e B8Y610&L, m v i Bmwme Physieal d k a ra e te r is tios of the IE sspuri TEver ia s ln Io c a t1Ioa and S ise 0 Ihs S isstm ri Biirer Basia includes the M xsouri proper sad a l l of i t s t r ib u t a r i e s to the O oatiaeatal BivMes I t lie s bcrbween the 57th and th e %9th degrees n o rth I n titu d e a I t in clu d es the lea d a re a o f a l l or p a rts of tea sta te s g mamely, Mtntraa * Ifyosaingo Colorado o !forth and South Dakota,, M nnesotaa Ieh ra sk a a S ra sa sa and Missouri o fhe elevation o f th e M issouri Biver a t i t s mouth is shout l|00 f e e t above se a le v e l = Most Cf the lower basin l i e s a t an a ltitu d e o f from 500 t o I aOOO fse to Io the w est and n o rth l i e s a broad s t r i p r is in g from I 5OOO to S5OOQ f e e t In a ltitu d e a t i t s western lim it* fe th e west o f t h i s SffOOO f e e t e le v a tio n lie s, a h ig h er b e lt o f an a l t i * tucte o f from S6OQO to L0QQQ I o e te West o f the LsOOQ fo o t contour is: g b e l t o f from LsQQO to 6»,OQQ f e e t high* The headwaters of th e Horth P la tte and o f the BSg Horn S v e r s l i e in m are a where e le v atio n rrages from 6*000 t o 12*009 feet* Ths p a r t o f the Missouri' Basin ly in g i n the United S ta te s covers about 326sOQQaQOO aor@sff or 5°9ff575 square m iles* She p a rt ly in g i n the Provinces of A lb erta rad B askatchw raP Craadaff covers 9 ff715 square Izdles6 o r 60217ff6QQ -acres* Ih other Wordsff th e a re a o f the Missouri H v e r Saein makes a t o ta l o f 519*090 square m ile sa o r 352*217*609 a c re s equal to about 17 p ercen t o f the to ta l a re a o f the Waited StateSo North Dakota South Dakota Colorado Pig* 2 M leeourl KLrer Basin Boundary and S ta te s W ithin th e Basin, Souroei M issouri S lrer Baeln U. S . D. A ., A pril c u ltu r a l Program. 27 Mleeourl Baeln States Pig# 5 General Location of the MKLeeourl Rlrer Baeln in the Uhited S ta tes. Adapted freoni Putting the Missouri to Work. Bureau o / Roclamation, Depart- ment o f the In terio r, Washing­ ton, De Ce, Ju ly, 19l«5 » ■«*- j28 -<» The ClimatGo ' The. nottaai o lIinate o f the Basiia i s humid fby the e a ste rn p a r t1ahd sem i-arid f o r the western area, This w estern p a rt i s c h a rac terise d by extremes i n r a i n f a ll and' tem perature and g rea t i r r e g u la r ity in clim ate throughout the seasons,of the yearo' W inters are r e la tiv e ly long and cold oyer, much of the Basin, w hile summers a re sunny and hgt„ Spring i s eool^ m o ist, and windy-, and autumn i s CoqI s d ry , ,and sunny. Other c lim atic fa c to rs im portant,,to farm ers'' i n th e S re a t P lain s o f the ■Basin are low hum idity, much, w ind, e x ce ss of' p o te n tia l evaporation over p r e c ip ita tio n , and a g reat d eal o f sunshine== . Temperatureo tu r s , The M ssp u ri Basin i s noted fo r extremes .of tempera* These- extremes come a s a r e s u lt of th e distance from la rg e bodies o f w ater which are slow to warm and to cool th e atmosphere* The Basin is* raoreoever, influenced a lte r n a te ly by a i r m asses' from cold, northern regions and from the Gclf of Mexico, ■ Therefore, the seasonal -variation and'-the d a ily range in tem perature are g re a t, and v io le n t tem perature Changes sometimes occur w ith in a. few hours* Jiyerage annual tem peratures in th e Basin range from approxim ately $$ degrees P* i n the southeast to le s s than W degrees F9 in th e northwest* In most places,, the h ig h est tem perature recorded i s a t l e a s t as high as HG degrees Fe and th e low est a t l e a s t as low as minus 20 degrees Fe Fmtremes a re beyond th ese lim its in. c e rta in areas* f a b l e ,-T shows th e mean temperature for th e ' s ta te s w ith in the M sso u ri Basin a re a for th e period of time from 1920 to 1933® 29 Table I Years 1920 Mean Annual Temperature fo r tiae M lesourl Basin S t a te s . (1920-1938) C olo. Iowa Kan. Minn. D.F. D.F. 1*8.2 D.F. D.F. 1*1.6 1*1*.I* 1*2.7 1*2.3 39.5 1*1.5 1*0.8 1*0.5 1*2.1* 39.1* 1*3.0 1*6.9 1*1.3 1*2.3 1*3.1 1*1.2 39.7 l*o.l* 1*3.1* 1*1.1* U3-5 I4 6 . 7 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 193U 1935 1936 1937 1938 I1SeS 5l*» 5 5 7 .6 5 0 . 2 5 5 .8 1*9.0 5l*«9 1*6.1* 5 3 .0 1*8.8 55-6 1*8.3 5 5 .2 1*8.8 5 5 .0 1*9-1* 5 5 .2 1*6.1* 5 3 .0 5 0 .2 55.5 5 3 .2 57.1* 1*8.2 51*. 7 5 0 . 8 5 7 .8 5 1 .5 5 8 .5 1*8.6 55-9 1*8.6 5 6 .3 1*7.5 5l*.6 5 1 . 2 5 7 .9 Ave . 1*7.6 1*8.8 1 9 2 1 1 9 2 2 4 3 .7 U3-6 U5.3 I1DeO l£ .2 141.7 4 3 .8 I4 I4 . . 6 I1S . 2 1*5.0 1*6.8 U9.5 1*6.6 1*6.9 1*5-9 Source* 5 2 . 2 5 5 .7 Mb. Mont. Nebr. N.D. S.D. D.F. D.F. D.F. D .F. D.F. 51*. 3 5 8 .2 1*8.9 5 2 .3 3 9 .5 1*2.0 3 9 -7 1*0.7 3 6 .2 1*0.6 1*0.7 38 .0 1*1.1 3 8 .0 1*1.1* 1*1*. 9 1*0.0 1*1.1 1 *3 . 1 * 39.1* 1*5.9 1*8.3 1*1*. 8 1*6.1 1*3.5 1*6.3 1*6.1* 1*1*. 0 1*6.8 1+3.6 1*7.0 5 1 *. 5 58.1* 1*2.6 1*1*. 2 1*1.5 1*3*1* 1*1.8 1*1*. 6 1+1*. 7 1*0.8 1*3.3 1*0.9 1*3*1+ 1*5*6 1*2.6 1*1*. 0 1*6.9 1*2.1* 1*2.7 1*1.9 1*1*.I 5 5 . 8 1*3.3 5 6 . 8 55 .3 5 3 .0 5 5 .6 51*. 5 5 5 .6 5 5 .2 5 3 .5 5 5 .9 5 8 . 0 5 5 .1 5 7 . 3 5 7 . 1* 5 5 . 0 5 6 . 3 5 0 . 0 1*9.6 1*7.1 50.1 50.1* 1*9.1 50.1 1*7.8 50.1* 52 .9 1*9.2 5 2 .1 53.1* 5 0 . 2 1*9.9 1*9.1 5 2 .3 5 0 . 2 Wyo. 1*5.2 1*7.9 1*9.6 1+6.1+ 1*5.1 1+U.6 1*7.9 D.F. 1*1.0 1*3*6 1*0.7 1*1.2 1*0.5 1*3.1 1*2.9 1+1.3 1*1.5 1*0.0 1*1.8 1+3.2 1*0.5 1*3.2 1*5.8 1*2.2 1*2.1* 1*1.1* 1*3.0 1*0.1* 1*6-3 1*2.1 38.8 39.1 1*1.9 5 0 . 0 Climate and Man, 1 9 l|l. P r e c ip ita tio n . The p r e c ip ita tio n in the M issouri R iver Basin i s o f th ree general types* ( I ) The "oyclon io S t o m n ty p e th a t covers th e autumn, w in te r , and sp rin g sea so n s. This k in d o f p r e c i p i t a t i o n , much o f which comes as snow, f a l l s a t a slow r a te and over r e la t iv e l y long p e r io d s. (2 ) The "continental" type which occurs during th e summer sea so n , m o stly in a rain form. This type g e n e r a lly covers sm all areas and u s u a lly comes in the form o f sh o rt hard showers w ith th e 0 one omit ant g r ea t disadvantage o f so much o f t h is typ e o f r a in f a ll being l o s t by <---------- P recipitation in Inches J 15-19 ^ Pig* U Averege Annual Precipitation in the Kleasuri River Basin* Precipitation includes rain, I 50-39 melted snow, s le e t and h a il. Hinoff in ste a d of soaking in to the so ilo (5) Iho nOrogmpMen type r e s u lts in t o t a l preolpitatiOn markedly higher than the precipitation o f o th e r types, the h e a v ie st r a i n f a l l comae in the months’ o f Mayjr Iunofl and duly th e n i t i s most needed fo r the crops and p astu re^ hnt» unfor* tu n a to ly fl much of i t i s no t used because i t s runoff i s h ig h , the h ig h est r a i n f a ll i n te n s itie s occur in the southeastern p a rt o f the .Basin0 table 11 Showe6 f o r t h a t portio n of the S re a t P lains t h a t i s w ithin th e Missouri E lver Basin6 the average annual p r e c ip ita tio n and c o e ffic ie n t o f v a ria tio n f o r t h e ' period from 1006 to 19589 fah le I f C h a ra c te ristic s o f th e P re c ip ita tio n for Seven S ta te s o f the Missouri Biver Basine (1086-1958) Ave o Annual P re c ip ita tio n S ta te • Inches Colorado 'I&nsas Montana Bobraaka S orth Dakota Bouth Dakota Wyoming Sotireeg ■ Standard Deviation C o efficien t o f Variation Inches 2=0 0*3 2=7 0=0 2 .8 3=2 2o6 Percent 16=09 B6=5T l!w88 22=50 . 16.89 18.97 13*93 Lead and Public D t i ll t y Economics , 1907. Mnd= 13 16 18 18 17 17 19 The Croat P la in s a re a o f th e Missouri Biver B asin is noted f o r windy weathers W inter winds are predominantly from th e northwest and wests w hile summer winds come m ostly from a southerly direction= to® h ig h e st average annual wind speeds a re about th ir te e n miles an houn and they occur in th e n o rth ea stern p a rt of th e Basin= Jhe g re a te s t wind speeds recorded vary from about b5 to JO m iles an hour^ PB aepsodias aa th e lo o e ltty a A p fU , *8@ rny* -At*#*# * a a # ar* m e # fre g u e a t .a# M W b*.' m gb %W # W Mgh WapOratiQiao #**%% $a. M # ^ Eraporfetion m d i'r.angpiratiOHo -fhe ‘r a te and th e WtQxmt atiO n bfe% a g re a t im portance.I a an a rid and gem i-arid regions ewpor« $be e ffe o tiW p r e c ip ita tio n i t oply th e n a tu ra l p r e c ip ita tio n mj.nufe.the evaporation W th e r u n o f f ih s r a t e o f evaporation o f m oietare fro® th e s o il depends p rin c ip a lly on the tem peraturee ■re la tiv e . Ium ldity8, tdad movement, s o il composition, and th e .amount of m oisture present# l a a l l p a rte of th e .Basin, the p o te n tia l. evaporation and trans«-. p ir a tio n are g re a te r t h # th e p re c ip ita tio n .« ' Actual evaporation, &# l e t s than th e precipitation, only because p a rt of the vfater i s absorbed and held by th e s o i l , and p a r t I p l o s t by runoff* Olim atic d a ta f o r ■ the Basin in clu d e l i t t l e inform ation on the lo s s o f w ater by ©vapor-* ation from the p o ll and tra n s p ira tio n b y plants.* ■ But evaporation from fre e w ater surface#^ ouch # leh es and streams^ i s h ig h e s t'in the a re a Of' low est rela tiv e - humidity in the. so u th ro p tem part-an d low est in thS humid n o rth ea stern payfe' However, the combined evaporation from s o il and tra n s p ir a tio n from p la n ts i s .h ig h est "in th e region of -highest r a in f a ll i n th e .southeast and decreases p ro g ressiv ely toward the north*. . West0 Shis, in crease i n 't h e ra te o f evaporation from north to south over the M ssc u ri .Biver Basin i s pronounced* She wa-ra season evapor» a tio n i n the- n o rth ern p o rtio n i s S lig h tly more than go inches ascompared w ith 'approximately 6 0 .inches In th e south® - 33 - Physical O harao teriatio s o f !lexito jkOpatim. # 4 Sigeo The Bepuhiio o f Mexico i s s itu a te d hetwee# the HiMi ie-gj?e©S 'and i w degrees n o rth Ih tith d e ^ . I t s ■&3(fa#m& lo n g itu d in a l p o in ts are 86 degfeSf, and,. 118 degrees s w est Io n g itad ee The Bepubllc is crossed by th e TfopiO Of Ganoer a t I t s jaid®pointe ; V, ' - ; , , - The geognapMc lim its o f the t e r r i t o r y of Mexioo a re a s follows^ west and norths th e P a o ifie 0eeau.s e asts the -Gnlf of Mexloo and ##.%«hemm #@&* norths. tW:'%nited S ta te s' of' #**«$##* douthedst# the. Kepwltiio# Of Guatemala and B r itis h Sondura$o The A ltitu d e 0 Bpre than h a lf th e t o t a l area o f the country &&' s itu a te d a t an a lt i tu d e o f more than 5*20(5 f e e t above sea levelg a coHslderable proportion o f t h i s a re a being, located a t more then 6,500 f a s t above ##& lo v a l? #& bav&og # S ltitB da o f l a s s than 650 f e e t above se a IOWI* are:. confined to' com paratively narrow .bands along e ith e r c o ast and to the Peninsula o f fueatan* Extreme Bimpnslonse The major d ista n c e i n a s tr a ig h t lin e isabout 1*900 Ittile s jl which runs from th e extreme n orth o f M w w G aliri 'fo m ia t# 1 the month of % e Mo Suohiate * State; o f Ohlapas^ w idth is, approxim ately 1*500 m iles in ' 'the ,,major' s t r a ig h t lin e draw,' from Tijuahai). low er G a lIfo w ia s to Matsworos,* S ta te of Tamaulipase TW narrow est p a r t o f Mexico measure# about '159 m iles in th e S ta te of OMSMW' . . The. t o t a l a re a of th e t e r r i t o r y ip. 763*9^, oguare .miles# o r . MSeTTljhOO acres<i. .le la tin g the;;.;area o f Mexioo w ith th e oorrdypondlhg' ■ a re a of oth er c o u n tries of th e world, we le a rn th a t Mexico occupies th e e ig h th p lace in the world, th e f i f t h p lac e in th e American Oonti= n e n t, end. th e th i rd p lace i n h a tin Amezdca* Ebei Clim ate, W ithin th e borders c f HexioC almost every type of Cliniate in th e world is lik e ly ' to be found in g re a te r or le s s e r degree* S trik in g d iffe re n c e s in tem perature tak e place w ithin a, sh o rt, geographic cal d ista n c e «, Ehis d iffe re n c e r e s u lts from the v a ria tio n s in a ltitu d e and from the p o sitio n of th e h i l l s and mountains. W ithin th e sh o rt d istan ce of only a few m iles one may S h ift from a clim ate su ita b le fo r banana p la n ta tio n s to one c h a ra c te ris tic o f pine forests® . Ehis g re a t .v a rie ty of clim ate may- be a ttr a c tiv e from a re c re a tio n a l stand* p o in t, b u t i t i s a g re a t disadvantage, to a g ric u ltu re , since* generally Speaking, the tem perature and the p re c ip ita tio n are n o t very c o n sisten t both through time and throughout th e country* Unless Irr ig a te d crops; or adaptable v a r ie tie s a re developed, most of th e farmers, have no assurance Cf t h e i r success i n .a g ric u ltu re . Temperature* Ehe t e r r i t o r y -pf -Mexico- i s 'Custom arily divided in to th re e major c lim a tic nones which, are based roughly on d iffe re n c e s in elevation* The f i r s t of th ese IS re fe rre d t o as the' iiEot Country", and,, though i t i s not d e fin ite ly d e lim ite d , i t includes roughly th e area s itu a te d a t an e le v atio n of le s s than 3,000 f e e t above sea level*. -This, a re a extends a s narrow bands along th e c o a st but broaden# c u t to include the e n tir e p eninsula of Vueatan* The iiE ot Country" includes vegetation which ran g es from tro p ic a l jungles to deserts.*: LBQBHD Temperate Lands Cold Lands l o t Lands Flge 5 Zones o f Tamperature In Mexloo. Sources La Hepubllca Mexieena, by Tomas Copeda Bincon, Mexioo. 19h l , p . 26 • J6 •» The second clim atic zone is referred to as the "Temperate Lands" and includes the middle a ltitu d e s, extending roughly from 3,000 to 6,000 fe e t in elevation . Light fr o sts ooour occasionally in the winter over some o f th is area although the temperature is generally m ild. This zone extends over the greater part of the central and northern area of the Republlo. The third gone i s that of the "Gold Country" which includes most o f the areas with an altitu d e in excess of 6,000 f e e t . In these areas fro sts occur at night rather frequently during the winter months, and the nights are generally c h illy e sp e cia lly during November, Decem­ ber and January. Table III Mean Temperatures for Some Representative Climatological Stations in Mexico. Length Mean Temperatures o f RecordStatlons___________State___________ing. Degrees F.__________________ Years Chihuahua Guadalajara Guaymas La Pag Lerdo Manganillo Magatlan Mexico City Monterrey Progreso Salina Crug Tampioo Veraonig Zaeateoas Sources Chihuahua Jalisoo Sonora Baja C alif Durango Colima Sinaloa D. P. Nuevo Leon Tabasoo Guerrero Tamaulipas Veraorug Zacatecag Climate and Man, 19Ul 10 2U 6 10 11 5 142 15 17 12 20 11 12 15 Jan. 5$ 59 6U 65 59 75 68 5h 57 69 76 66 70 1*9 Oot - I P - T T jl 61* 66 69 69 72 81 87 80 Tl 81* 70 Tl 79 82 80 75 82 72 80 65 65 59 81 72 71* 82 80 79 81 82 80 82 76 78 80 76 79 58 58 55 , . smnuial, distrilbutedb fte north & JgenerdLly i s 1Tery W ew iiiy Tattt there are. are#, on the southejffii S ttlf Soost in the s ta te s # f le ra o rtts . Tabasco m d SempecM 1STkere the r a i n f a ll ,averages from 90 t o 1%8 intihee; per year* S e rW n Spots south o f the Sttlf i n the s ta te s of Tabasco had Y eraorut are . i deluged w ith o ver 118 in ch e s-o f'.W k f a l l a year* to t k l a 'a n W in I a striKfeig c o n tra st north # d n o rth e a st the c h a ra c te ris tic s o f W ' ' ,1' ■ v ., ! ' . 'V .. ■ p r e c ip ita tio n approximate d e s e rt c o n d itio h sff M tih g le s s than '3*8 ' 'V:i;' inches, of r a i n f a ll a year* the areas, * e r e the r a i n f a l l i s inadequate fo r a su ccessful & griculture represent; th e g re a te r p a r t of th e t o ta l a re a o f the M puhliM M cprding to ThoMtMaite*$ c la p sif l cation^■ HMioo^®. lend area, may ho Olass l f i Od h i follows,,^ adequate mols.tiM- '■ In m l seasons.^, only 12*8 p e rc en tg d e fic ie n t m oisture in a ll; seasons^ 10*9 p e rc en tg d e fic ie n t m oisture in winter.* 35»9 percents d e fic ie n t m oisture in Summeri, I aI?. percent* P p u W ifth a o f th e -crop land is. ^seasonal" land#, in t h a t i t w ill produce crops only during the rainy season# .which* in m ost-parts . o f. the country* is from # y Or June to. Beptembef& Only m& hOOthre o u t'o f s ig h t i s irrig a te d ^ and only about 6«.g percent i s c la s s if ie d a s being s u f f ic ie n tly humid not to need irrig a tio n * 38 Table 17 Average Annual P recipitation In Some Representative Climatological Stations in Mexico* Station Chihuahua Guadalajara Guaymas La Paz Lerdo Manzanillo Mazatlan Mexico City Monterrey Progreso Salina Cruz Tampico Veracruz Zacatecas State Chihuahua J a lisco Sonora Baja, C alif. Durango Colima Sinaloa D. P. Nuevo Leon Tabasco Guerrero Tamaulipas Veracruz Zacatecas Length of Record in Tears 22 33 5 13 14 10 U7 17 33 12 23 15 12 35 Ave• Annual P recipitation Inches 15*39 39.73 11.11 5 .7 1 10.21 3 6 .2 7 3 0 .1 3 29.38 2 2 .8 0 1 8 .9 4 38.81 4 4 .9 3 6 3 .7 4 2 0 .1 3 Source * Climate and Man, I9I4I . As far as the number of days with r a in fa ll i s concerned, roughly two-thirds of the country receive 100 or le s s days of r a in fa ll; one-third receive between 100 and 200 days of r a in fa ll, and n egli­ gib le portions along the coast of the Gulf of Mexico receive preci­ p ita tio n during 200 days or more* 78*7 to 118.1 118.1 end over m r n Flg 6 Sources Sfclnfall Map o f Mexloo Sltowing Variation* In the Average Amount of Annuel Rainfall from 1921 to 1930. Sural Mexico, by Hathaa L. Whetten, University o f Chicr-o k-ose, Chicago. I l l i n o i s , I9I48, p. 7. AgrioultiW'al. Econotoio Bevel opmsat o f # e 'ItSssourS. F iver Basin fhe S lg n lfio a n i eeonomio use o f th e 'Missouri Basin Began i n 1805* She n g ric u ltu ra l occupation was la rg e ly confined to lan d s In th e lowerM issouri t e r r i t o r y u n t il a f t e r 1862 when Kansas and Sehraska were se ttle d * South. Dakota, Sorth Dakota, SehraSka and Kansas grew wheat e x te n siv ely in t h e i r e a rly M sto ry a. h u t oom has Become in cre asin g ly im portant p a r tic u la r ly in Sohraska and South Dakota0 te e seven p la in s s ta te s harvested acreage of the Mnited S ta te s i n 1945* percent of the to ta l wheat In 1895» ju s t 50 y ears e a r l i e r , , only 51=S percent of the United s t a te s Wheat acreage was in these sta te s* ' te e chronological development o f t h e -BhSiStfS a g ric u ltu re has Ibeeajl in a general sense# in. the follow ing orders f i r s t # Because the a r id weather conditions e x iste d in most o f the..-states# th e a g ric u ltu re was alm ost e n tir e ly centered in gracing,, and# th e re fo re , in the devo« lopment o f the, liv e s to c k industry* Secondly# those s ta te s th a t have had th e most abundant r a i n f a l l »- or which have been supplied w ith supplementary w ater through, Irrig a tio n # -have been able to broaden the economic b a sis o f t h e ir ag ric u ltu re# She Mountain and th e West Worth c e n tra l' D ivisions Cf th e United State©# i n which th e B atin -states a re situ a te d # have in creased th e ir output a© tim e went on* -UlTablo V Index Bumbera of Farm Output for Human Consumption from the Mountain and the West Borth Central Divisions of the United States 1938-19U7. (1933-39-100) Years 1938 1939 19Uo 1 9 1 a 1 9 I4 2 191*3 19W* 191*5 19l*6 19l*7 Average * Includes the sta te s **Includes the sta tes Missouri, l o w , and Source: Agricultural West North Central Division** !fountain Division* 111 U 112 113 122 132 158 151* 156 155 1 0 1 1 3 1 2 5 133 139 137 1 3 6 1 3 6 1 6 0 il*l* 11*5 128 139 of Montana, Wyoming, and Colorado. of North Dakota, South Dakota, Nebraska, Kansas, Minnesota. S t a t is t ic s , 19U8, U.S.D.A. By looking at the data in Table V, we oan r ea lise th a t, measured by farm output for human consumption, the agricultural development of the Basin has become more and more important. We can arrive at th is same conclusion when we measure the agricultural development by the gross farm production as i t is se t forth in Table VI. As in the United States as a whole, the number of farms in the Basin sta te s has showed a downward movement. This i s shown in Table VII. This tendency of a decreasing number of farms, explainable in part by the improvement in agricultural technique and by the in d u strialization of other parts of the country, does not mean a decreasing importance in agri­ culture, since what has happened i s only an enlargement in the size of the remaining farms# This change favors an Increased e ffic ie n c y in farming. Table VI Index Jfumbers of Gross Farm Production for the Mountain and the IfiTest North Central D ivisions 1938-191+7 (1935-39=100). Years !fountain D iv is io n HO 103 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1 0 9 HO 117 1 1 1 Average Source* West North C entral D iv isio n s 1 2 2 1 2 6 129 134 132 130 129 136 148 1 3 2 124 1 3 2 1 4 4 1 4 5 1 4 4 148 A g r icu ltu r a l S t a t i s t i c s , 1948, U.S.D .A . Table V II Number o f Farms in th e M issouri B asin S ta te s from 1930-1945 and Change in Number o f Farms from 1940-1945* Increase or Decrease B asin S ta te s Colorado Iowa Kansas M innesota M issouri Montana Nebraska North Dakota South Dakota Wyoming T otal B asin Total U nited S ta te s Source* Number o f Farms 1940 1930 1945 1940-45 Percent Nuxnber 6 3 ,6 4 4 221,986 174,589 203,302 278,4 5 4 5 0 ,5 6 4 133,616 8 4 ,6 0 6 83,303 1 7 ,4 8 7 - 3,818 - 4 ,3 8 4 - 1 5 ,1 3 5 - 8 ,399 -1 3 ,1 5 6 - 4 ,0 7 6 - 9 ,3 0 6 - 4 ,4 4 2 - 3.749 - 1,942 - 7 .4 — 2*1 - 9 .7 - 4 .3 - 5.1 - 9 .7 - 7 .7 - 6 .0 - 5 .2 - 1 2 .9 1 ,1 3 0 ,4 3 4 1,198,351 1,311,551 -6 8 ,4 1 7 - 5 .7 5 ,8 5 9 ,1 6 9 6,096,799 6,288,648 -237,630 - 3 .9 47,618 208,934 141,192 188,952 242,934 37,747 111,756 6 9 , 5 2 0 6 8 , 7 0 5 1 3 , 0 7 6 51,436 213,318 156,327 197,351 2 5 6 , 1 0 0 41,023 121,062 73,962 72.4 5 4 15,018 Census o f Agriculture, 1945• -1 + 3 “ Rie proportion o f land in fa m e in each s ta te ( Table V III) has been co n sid era b le s in c e the area was s e t t l e d , but i t i s v ery s i g n i f i ­ cant th a t th a t proportion has tended to in c r ea se w ith the passage o f tim e. While in 1935 the percentage o f land in farms was 72, on the average, in 19li5 i t readied 78, Compared w ith the U nited S ta te s as a w hole, th e M issouri Basin s t a t e s in c r ea se d th e ir proportion o f land in farms by I percent more than the U nited S ta te s did from 1935 to 1915. Table V III P ercent o f the T otal Land th a t i s in Farms in th o Basin S ta te s 1 9 3 5 - 1 + 5 , B asin S ta te s Colorado Iowa Kansas Minnesota Montana Nebraska North Dakota South Dakota Wyoming 191+5 54.1+ 96.2 92.5 62.3 62.8 97.3 91.4 87.9 53.1 1940 47.4 95*3 91.7 49«6 49.6 96.5 04*6 80.6 44.9' Average 77.8 71.8 U nited S ta te s 5 5 .? 3 9 .9 Sourcel UV S.' Census' o f A g r ic u ltu r e , 19^5 1935 45.2 96.6 9 1 . 7 50.6 50.0 94.8 87.1 75.4 45.1 71.7 55.4 The valu e o f farms in the M issouri KLver Basin (Table IX) has in crea sed a great deal in th e l a s t y e a r s . Although i t i s alm ost c e r ta in th a t in c r ea se in th a t valu e has been because o f th e in f la te d v a lu e s th a t have occurred during the l a s t y e a r s, i t a lso i s an in d i­ c a tio n o f improvement in the farm b u ild in g s , as w e ll as an in c r e a se in th e s o i l f e r t i l i t y and the adoption o f b e tt e r farming p r a c t ic e s . Also these are evidence of the agricultural importance of the Missouri EtLver Basin states* Table IX Value of Farms in the Missouri Basin States (Land and Build­ in g s). 1930-19lt0-19li5. Average per Farm (d ollars) Basin States Colorado Iowa Kansas Minnesota Missouri Montana Nebraska North Dakota South Dakota Wyoming " IW " 1 1 ,8 5 5 1 7 ,2 8 4 1 3 ,9 6 2 9 ,705 6,285 13,720 15,205 10,189 1 1 . 1 2 4 7,917 percent of Increase or Decrease 1940 19)0 1940-45 7 .5 5 0 1 2 ,6 1 4 9 ,0 9 2 7 ,312 4 ,3 2 4 8 ,3 7 3 9 ,3 9 9 10,497 19,655 45*4 3 4 .2 3 8 .7 27*1 37*9 47*9 49*3 44*5 6 , 6 2 8 6 ,9 7 6 5 .5 1 8 1 3 ,7 2 8 11,471 7.018 11,109 19,274 12,199 15,455 12,919 Weighted average 11,680 8 ,0 2 3 12,597 Source* IJ* S* Census of Agriculture, 19li5» 5 1 . 2 37*9 45*4 The acreage harvested per farm between 1929 and 1914* in crea sed I4 . . 6 7 percent on th e average fo r the ten s t a t e s . I n d iv id u a lly , the g r e a te s t in c r e a se s were fo r South Dakota and North Dakota w ith 9*17 and 7*85 p e r ce n t, r e s p e c t iv e ly . The s t a t e s th at showed a decrease were Minnesota and Iowa w ith - ) . 2 5 and -3 * 5 5 percent, r e s p e c tiv e ly . U n fortu n ately, fo r the United S ta te s as a w hole, most o f the s t a t i s t i c a l data fo r the M issouri River Basin s t a t e s i s a ff e c te d by th e Second World War c o n d itio n s , and, th e r e fo r e , we cannot be c e r ta in o f the r ea l n atu ral tendency o f the economic c h a r a c te r is tic s o f th e a g r i­ c u ltu re o f th e r e g io n . This i s tr u e , fo r in sta n c e , in the ca se o f f o r e s t products s o ld per farm. In 1930 the mean o f th e average valu e - U5 o f fo r e s t products s o ld per fa n s was $ 1 7 ). to $ 1 0 9 , and fo r 1 9 2 4 5 In I 9 I4 O th a t v a lu e decreased the fig u r e was In creased to $271. In th e foreg o in g we have t r ie d to s e t fo r th some s t a t i s t i c a l data d e scr ib in g the a g r ic u ltu r a l economic development o f the B a sin . The fo llo w in g s e c tio n w i l l be devoted to show th e s ig n ific a n c e o f th e Mis­ so u r i River B a sin 1S a g r ic u ltu r e in th e U nited S ta te s economy. The a g r ic u ltu r e in the Basin rep resen ts an important p art o f th e H atlonf S economy ( Table X ). The Basin area o f approxim ately 3)2 m illio n a cres i s about 17 percent o f th e land area o f th e U nited S ta te s , about 2 5 % o f the cou n try’ s fara land and the same proportion o f the harvested cropland. Table X Comparison o f A g r icu ltu r a l S t a t i s t i c s fo r the U nited S ta te s and th e M issouri KLver B asin. Land area Land In farms Cropland harvested Humber o f farms Farm population Value of land and b u ild in g s Value o f farm implements Value o f liv e s t o c k Source* U nited S ta te s M issouri Basin Percent o f U .S. Total 1,905 1,1142 353 5 ,8 5 9 23,558 3U0 282 91 582 2 ,0 9 6 17-8 2 4 .6 2 5 . 8 * 1 ,000,000 246,389 6 ,5 5 7 12*. I 1 ,0 0 0 ,0 0 0 1 ,0 0 0 ,0 0 0 5,124.7 8,2*72 82*7 1,663 16.1* U nit U hlt M illio n acres n n « « 1,000 1 ,0 0 0 9 .9 8 .9 1 7 . 2 M issouri :R iver B asin A g r icu ltu r a l Program,p UeSeDeA-. August, 192*9. C apital v a lu es in a g r ic u ltu r e in th e area represented an in v e s t­ ment o f about nin e b i l l i o n d o lla r s in 19U5. The value o f land and b u ild in g s accounted fo r 6 .6 b i l l i o n d o lla r s o f t h is t o t a l . The proportion o f U nited S ta te s value o f liv e s t o c k and liv e s t o c k products s o ld in 1914* by the M issouri Basin i s in d ic a te d in Table I I , Table XI Value o f L iv esto ck and L iv esto ck Products S o ld , I 9 I4 U, Mis­ so u ri B asin , Commodity M issouri Basin (000) u ,527 1,220 185 27 7 197 12 L ive anim als, w o o l, m eat, e t c . Dairy products P o u ltry and p o u ltry products A ll liv e s t o c k and l i v e ­ sto ck products so ld Sou rce: Percent o f U nited S ta te s Total U nited S ta te s (000) 2 , 5 3 1 1 ,587 8,6145 1 , 6 0 2 19 M issouri River B asin A g r icu ltu r a l Program, U .S .D .A .. August, In the year I 9 W4 , th e value o f a l l th e wheat produced in the M issouri B asin accounted fo r 3k percent o f the to t a l value o f wheat produced in the U nited S t a t e s . Com production made up 25 percent o f the volume o f prod u ction , and th e f la x th resh ed rep resen ted U7 percent o f the t o t a l . B arley threshed made up 1*0 p ercen t, and sugar b eets rep resen ted $6 percent o f the N ation ’ s t o t a l production. Although th e valu e o f a l l farm products sold or used by the Basin s t a t e s (Table I I I ) decreased n otab ly in 19W as a r e s u lt o f th e com­ bined e f f e c t o f drouth and d ep ressio n , th a t valu e was in c r ea se d con­ sid e r a b ly in I 9 I4 5 , but t h i s time i t was in flu en ced by good weather and h ig h p r ic e s . - hi Table XII Value of All Farm Products Sold or Used by the Basin States Average Value Per Farm (Dollars)* 1 9 3 0 - U5* Increase or Decrease (-) State 1945 1940 1930 1930-1945 1930-1940 Dollars Dollars Colorado Iowa Kansas Minnesota Missouri Montana Nebraska North Dakota South Dakota Wyoming 5,671 5 ,982 4 ,6 3 3 3 ,8 0 4 2 ,4 5 6 6,363 5,277 5 ,6 6 3 4 ,5 5 7 6 ,8 4 2 1 . 5 0 2 2 , 8 5 0 1,775 1,048 2,267 1.792 1,580 1,531 3,405 2 , 3 2 0 1 ,6 0 4 3 ,0 5 2 3 ,4 6 7 2 ,8 2 7 2 ,9 0 6 4 ,1 2 5 2 ,338 2,679 1.783 1,483 852 3,313 1 ,810 2 ,836 1,651 2,717 Average 5,125 1,981 2 ,9 7 9 2 ,146 2 , 2 3 2 2,683 3,333 3,303 70 1 1 6 2 64 53 1 0 9 52 100 57 66 54 # - 1 ,1 0 1 - 3 3 - 620 -1 9 -1 ,3 4 8 -4 7 - 547 - 2 3 - 556 - 3 4 - 785 -2 6 - 1 , 6 7 5 -4 8 -1 .2 4 7 - 4 4 -1 ,3 7 5 -4 7 - 720 -1 7 - 997 -3 4 Source 1 U. S. Census of Agriculture , 1945. Table XIII shows that In the year I9I4U the value of sheep, c a ttle and hogs In the Basin accounted for from 20 to 28 percent of the to ta l value of liv e sto c k in the United S tates. Table XIII Value of S p ecific Livestock on Faras, January I , 1945» Mis­ souri River Basin. United States (000) Type Horses and mules Cattle Sheep Hogs Source* 974 5 , 6 0 3 359 988 Missouri Basin (000) 99 1,145 102 245 Percent of U.S. Total 10 20 28 25 Missouri River Basin Agricultural Program, August, 1949. In the year of 1940 the Basin had 5.2 percent of the U. S. to ta l population and roughly 8 percent of the farm population. The Missouri Basin i s a leading resource area from which the Nation obtains a high — ItS — proportion o f i t s food and f i b e r . The production th a t th e B asin fu r ­ n ish ed to th e U nited S ta te s* economy during the drouth period o f 19 )0 39 in clu d ed i 1*1*3 percent percent 31+ . 8 percent 15*3 p ercen t 1 0 .0 p ercen t 1 8 .7 percent of of of of of of th e th e th e th e th e th e N a tio n 's N a tio n 's N a tio n 's N a tio n 's N a tio n 's N a tio n 's wheat rye b a rley oats com grain sorghum When nature sm iled , as she did in 191+1# th e B a sin 's production accounted for* 51*7 6 1 .9 50.1+ 19*1+ percent percent percent p ercen t of of of of the th e the the N a tio n 's N a tio n 's N a tio n 's N a tio n 's wheat rye b a rley oats 2 5 . 6 percent of the Nation's grain sorghum 1 1 .6 percent o f the N a tio n 's com 3 2 .7 p ercen t o f th e N a tio n 's wool R elation o f P h y sica l Features to th e A g ricu ltu ra l Development. The agricultural economic development of the Missouri River Basin has been c lo s e in lin e with i t s physical featu res. Back in i t s early days, the more arid parts of the Basin were covered with a carpet of grass, thus leading to the development o f a livestock industry. With the passage o f time, wheat became more and more important, and when i t was possible to dispose of water through irr ig a tio n , the agriculture became more d iv e r sifie d . From the standpoint o f the major geographical division s of the Basin, the Upper Watershed area i s the more arid portion, and, therefore, appears to be more suitable for grazing the liv esto ck and for timber. This area, with the exception of the ir r i­ gated area, i s suitable only for lim ited cultivation* In th e West-era P la in s area* 'th e r a i n f a l l ' i s Itiw making th e production u n c ertain and ri$ky in meet of the n o n ^ irrig ate d Iauds In tome part# o f t h i s area* dry-wheat farming 'ig p ra c tic e d w ith Some degree o f suer ooBSa ihe E astern P la in t and Iiotrer Basin areas are more favored in r a i n f a l l and humidity* and*- therefore* the: crop production i s higher* more s ta b le , and more d iv e rs ifie d th an i t i s i n th e Upper 'Watershed and Western. PiainB areas™ SBe a g ric u ltu re of th e M sso u rl BisW Basin could n o t have been developed in a steady way and on a wed I - e s t a b li shed b a sis except by t r i a l and error* During low productivity*' p erio d s caused Wy n a tu ra l ' hazards* the farm ers.were forced to r e s o r t t o a l l or some o f th e follow ing ex pedientss ( I ) • B e 'expansion of crop acreage to meet the impact of low yields* (2) i gracing* {$) : ■ B e farming o f land b e tte r su ite d fo r ■ , ' ■ ■ B e a lte rn a tin g , o f periods o f a g ric u ltu r a l advance in to th e d r ie r p a rts o f the Basin and r e tr e a tin g from them* ■ B e p e c u lia r c lim a tic conditions fo r a g ric u ltu re t h a t p rev a il in the: Basin make the S tatu s o f farming uncertain* During drouth periods or d i s tre s s of oth er natu res 5 th e farm ers and t h e i r fa m ilie s liv e d in poverty and need; many lacking th e fin an ces to pay t h e i r dCbts* Boss o f farms- by fo reclo su re m s v e ry high* B e n a tu ra l c h a ra c te ris tic s o f th e .Missouri SiVer Basin have been Strongly r e fle c te d in th e types o f farming*. In- ad dition to th e ranching a g ric u ltu re mentioned above*, th e re e x is ts th e summer-fallo w type o f a g ric u ltu re B io h i s c h a ra c te ris tic o f the. a rid areas* the type and development of some s o c ia l in s titu tio n s t h a t serwe the farm ers also have been in accord tisdth special, c h a ra c te ris tic s o f th e region= fo r in sta n c e , th e o rg an isatio n of the lending in s titu tio n s i t d if f e r e n t from the o rg an isatio n of th e lending in s t it u t io n s o f:th e Bast so f a r as repayment plans a re concerned* Property I n land also ■presents d ifferences* f o r i n most o f th e M issouri Basin s ta te s there i d a: la r g e r proportion Of f ederaliy^om eS. land, than th e re i s in other- . areas o f th e country * Ih is c h a ra c te ris tic may c o n s titu te one o f the fa c to rs t h a t has o b stru c te d a more rapid and b e tte r development of a g ric u ltu re i n th e M issouri Biver Basin* ■ ' B rjef Inform ation About i r r i g a t i o u in the M issouri '.Bifer-Basln^ ' A ctu ally th e re are. about ^ i OOOsOOO acres o f ir r ig a te d land in. the • M seo u ri Basin* Of t h i s area approxim ately I »000 a cre# receiv e . only a sm all pro p o rtio n o f th e water- t h a t they need* i t i s intended ■ to. develop an a d d itio n a l 5»253»000 acre# o f new i r r ig a te d lan d and to supplement w ater fo r another I »943*000 acres* A ltogether# present and, future, ir r ig a te d rand, w ill co n trib u te a t o ta l Of 10, 233*000 acres* $he p resen t and, proposed ir r ig a te d land M sh a tte red throughout the. d r ie r p o rtio n s o f the Basin, a s shown in fab le 3CW* I t should be noted th a t ir r ig a tio n i s n e t proposed f o r th e S ta te s of Minnesota,, Iowa and M ssouri* ' This ip because th e two form er s ta te s ' have a very sm all proportion w ithin the Basin* and because t h a t proportion i s in th e more humid p a rt o f th e Basin*. Ihere* • fo re ^ i r r ig a ti o n i s no t necessary* Ihe S ta te of M sso u ri includes 51 almost a h a lf of I ts territo ry in the Basin, but irrig a tio n i s not proposed there because the sta te is one of the more humid of the area. Flood control i s the major a c tiv ity in these humid s ta te s . Table XIV Present and Proposed Irrigated Land by States in the Missouri Basin - United S ta tes, S ta te s Present I r r ig a tio n (ldOO A cres) New I r r ig a tio n (lOOO A cres) Supplemental I r r ig a tio n (1000 A cres) 2 I4 O Montana 1.591 9U7 Wyoming 5U 1.23U 165 -0North Dakota 1,225 29 South Dakota 6 8 958 2 3 Colorado 1 , 2 6 8 97 997 810 5 1 8 Nebraska 1,470 * -CL Kansas 195 5 , 0 0 0 T otal 1,943 5 .253 ♦Less than 500 a c r e s . Sourcei Changes in Crop Production A n ticip a ted from Proposed I r r ig a tio n in the M issouri ZtiLver B asin , U.S .D .A ., February, 1 9 5 0 . The change that w ill take place in the acreage of cropland w ill not be s ig n if ic a n t when viewed from th e B asin as a w hole. Only 2.8 5 p ercen t w i l l be added to the area already being farmed; t h i s i s because a con sid erab le amount o f the land th a t w i l l be ir r ig a te d i s already being farmed under the dry-farm ing system . However, when we consider s p e c if ic cro p s, n o tic e a b le changes w i l l take p la ce e ith e r in in crea sin g or d ecreasin g th e area d edicated to c e r ta in crop s. tru e fo r w heat, a l f a l f a hay and potato cro p s. This i s p a r tic u la r ly The acreage dedicated to wheat w i l l be decreased in rather amazing q u a n tity . In g e n e ra l, t h is s h i f t may appear reason ab le i f we r e c a ll th a t, on ir r ig a te d land , i t i s more p r o fit a b le to grow crops such a s a l f a l f a and p o ta to es in ste a d o f w heat. A lf a lf a hay and p otatoes w i l l in c r ea se n o tic e a b ly in a ctu a l 52 acreage* See ta b le XV* Table XV Present and A n ticip a ted Acreage o f S p e c ific Crops on Land Proposed fo r New and Supplemental I r r ig a tio n . Crop Com Vfheat Oats B arley Rye Grain Sorghum Forage Sorghum A lf a lf a Hay P otatoes Sources P resent 1000 Acres A n ticip a ted 1000 Aores 1 ,186 1.5U5 598 U9 17 70 1.239 118 505 667 -Qm 31 7 6 9 0 2 , 0 6 3 5 0 2 6k 2 1 9 Increase or Deorease ( - ) lOOO Acres 53 -1 . 2 2 5 3 69 k9 Ik 63 1.773 155 Changes in Crop Production A n ticip a ted from Proposed I r r ig a tio n in bho' M issouri River B asin , U .S .D .A ., February/ IgffiV Viewed from th e Basin as a w hole, th e change in production Is expected to be by fa r more s ig n if ic a n t than th e change in acreage would in d ic a te . Of the nine s p e c if ic crops considered above, the p o tato and com crops w i l l have th e g r e a te s t in c r ea se in production w h ile wheat w i l l have th e g r e a te s t decrease in i t s produ ction. Table XVI s e t s fo r th t h i s inform ation. D o u b tless, the change in production fo r s p e c if ic crops i s very s ig n if ic a n t when compared w ith the t o t a l production o f the U nited S ta te s. This i s p a r tic u la r ly true fo r the potato and a l f a l f a hay crop s, whose change w i l l account fo r 7 end 12 p ercen t, r e s p e c tiv e ly , o f th e N ation 1S t o t a l production (T able XVII) . 53 Table XVrI Present and Anticipated Production of Some S p ecific Crops on the Land Proposed for New and Supplemental Irrigation. Crop Total Production Unit Present Com Wheat Oats Barley Eye Grain Sorghum Forage Sorghum A lfa lfa Hay Potatoes Sourcei 1,000 bu. n M If ft » n « ft tf n 1,000 tons ti n 1,000 bu. 27,550 19,017 12 ,8 9 7 15,596 53U 259 136 1 ,4 2 7 1 0 , 8 6 7 Anticipated Increase or Decrease ( - ) 52,241 3,328 21,113 24,691 -1 5 .6 8 9 26,081 10,485 533 I 1,271 42 5.391 35,783 8,216 1,012 94 3 ,9 6 4 24,916 Changes in Crop Production A n ticip a ted from Proposed I r r ig a­ t io n in the M issouri Rjver 3 a s in , U.6YD.A'., February, Table XVII Anticipated Increase or Decrease (-) of Selected Crops in the Missouri Basin as a Percentage of Present Production of These Crops in Selected Areas. Crop U nit Com Wheat P otatoes A lf a lf a Hay Souroei m illio n bu. n n M It m illio n tone On Land to be Ir r ig a te d Percent 90 -8 2 229 278 In the M issouri Basin Percent 3 -4 96 53 In the U nited States Percent I -2 7 12 Changes in Crop Production Anticipated from Proposed Irriga­ tion in the Missouri' 'RiVer Bnsin, U .S.6.A ., February, 1950. - 5U - Agricultural Economic Development of Mexico Significance of the Agriculture in the Rational Eooaomy« Accord­ ing to the 1930 Census of Mexico, the distrib u tion o f the gainfu llyworking population among the principal major occupations was as shown in Table XVIII. Table XVIII Economically Active Population by Classes of Occupation in Mexico, 1930Occupation A g r icu ltu r e , f o r e s tr y , liv e s t o c k , f is h in g and hunting Industry— in c lu d in g m ining, petroleum and manufacturing Transportation and Communication Commerce A ll oth ers and u n c la s s if ie d T otals Source t Number ( in 0 0 0 '« ) Percent o f Total 3 ,6 2 6 .3 70*2 7U3*U 273*8 415*2 iU*U 2 .1 5*3 8 .0 5,165*8 100.0 1 0 7 .1 The SjIdo{ MexicotS Way Out, by E. N. Simpson, 1937* The c a p ita l in v e ste d as of 1929, according to the same source o f in fo rm a tio n , was 3 , 6 9 5 m illio n pesos in a g r ic u ltu r e , 979*5 m illio n p esos in m anufacturing, and in mining and m etallu rgy, p e so s. \ J 1 , 5 0 0 m illio n Mexico i s a country s t i l l predominantly a g r ic u ltu r a l. Up to the present time, most of Mexican agriculture has lacked the technical advances now being used by the leading countries in agriculture. This statement may be supported by the s t a t is t ic a l records of agricultural production shown in Table XIX. l/ The exchange rate during recent years and up to August, I 9 I4 8 1 (U. S . currency) * U*85 pesos. Since August up to th is date, $1.00 * 8 . 6 5 p e so s. $1.00 - 55 - Table XIX Volume of Production - Eight Crops, 1901-1907* sand of metric to n s). ( in thou­ Crop 1907 1902 1903 190a 1 ,9 2 7 199 2,2a2 183 286 37 136 29 i.a s 6 15 2 ,1 7 a 162 1 9 0 1 Com Beane Wheat Cotton Henequen Coffee Sugar cane Potatoes 2,305 256 327 22 82 27 2,22L 9 2 3 0 2 23 55 10 ,?a 6 9 2 5 6 55 1 0 1 3a 1 ,393 ia 1 9 0 5 1 9 0 6 2 , 1 3 5 2 , 7 1 5 ia 9 178 3 0 3 3 5 0 ia s 8 1 5 9 6 5 LiO 39 1 ,6 8 7 1,807 13 25 5 ,0 7 5 169 312 3a 113 50 2 ,7 6 2 17 Sevei Tbar Awrage 2,653 182 295 5 a 9 0 5 3 2 ,0 1 5 1 5 1927-1933 Crop 1927 Com Beans Wheat Cotton Henequen Sugar cane Potatoes Source: 2 ,059 190 32U 39 133 2,997 53 1928 2 , 1 7 3 1929 2 ,a # 1 7 6 9 5 3 0 0 3 0 8 6 0 5 3 1 3 9 1 2 9 2.9^ 7 3,029 5U 39 1 9 3 0 1,377 83 312 38 90 3 ,2 9 3 as 1931 1932 2 ,1 3 9 136 aaa a6 aa 3 , 6 9 a 1,973 132 1 0 2 6 3 2 2 Seven Year 1933 Average 1 ,9 2 a 186 330 56 9 6 1 2 3 3,ao5 5 2 2 ,7 7 8 52 1.873 1U2 325 as 1 1 a 3 .1 6 3 to The BjIdo} Mexico’s Way Out, by E. S. Simpson, 1937* A general glan ce at Table XIX in d ic a te s th a t tho production o f c o m and b ean s, which s t i l l are th e b a s ic products in the Mexican d i e t , has bean somewhat ir r e g u la r . I t has rather a tendency to decrease in volume in some years in r e la t io n to the seven year average of the 1901-1907 p erio d . The data in Table XIX shows th a t throughout the p eriod o f record, production o f co m and beans remained e s s e n t i a l l y the same. These products do not show a decided upward tendency in tiie lr volume o f prod u ction , and, what i s more, the 1 9 2 7 - 3 5 average was sm a ller than th a t o f the 1901*1907, period.= The production, o i oof fee and potatoes shows, m upward tondenoy during th e f i r s t -period ■oo&sIdefed= . e te e tendeuoy was not t r i e f o r h eth coffee and-potatoes during, the ' second period analysed#' h o t a .sig n ific an t ohaOrvatiou here 1$ that* ■contrary to th e case o f corn and hem s# the seven y ear average fo r the I92?“i953 period was g re a te r than i t was fo r the 1901*1907 period# Among th e a g ric u ltu ra l products ra is e d lh Eemicoj. wheat deserves o a r a tten tio n * too= I t has -a decided in flu e n c e on in d u s tria l uses and on the ,Memican, -diet= As. in th e ease -of corn and hem s# wheat showed an Ir r e g u la r tendency in i t s production* although the. average produotion f o r the 1927*1935 period was g re a te r than i t was f o r the p erio d from 1901 to 1907» Also deserving our a tte n tio n i t cotton* since it- i s im portant In th e n atio n al industry# and because h o tte r n a tio n a l resources d is tr ib u tio n and te c h n ic a l care a re devoted to i t s production=. . from th e d a ta contained in: Table HX# we see th a t cotton production, showed a ste ad y upward tendency fo r the f i r s t five- -years of th e 1991*1907 period= For the o th er period# the tendency was ra th e r in d e fin ite * and: what i s mere sig n ific a n t# th e average production fo r th a t period WaS sm aller than, i t was fo r the. 1901*190? period= the. poor technique employed i n Eeddean a g ric u ltu re i s fu rth e r ■supported by observing th e y ie ld s through th e years, e f th e tW periods Considered above -,(fable %%)*Prom th ese d ata we le a rn t h a t the y ie ld s of. the products - 57 - considered have not shown any marked upward tendency, although, except for beans, a s lig h t Improvement is noted from the f i r s t to the second period* Table XX Yields in Kilos for Pour of the More Important Products from 1901 to 1907* (One k ilo i s equal to approximately 2.2 pounds) Crop 1901 Com Beans Wheat Cotton 580 1 9 0 2 2 3 2 569 229 571 265 2k2 6 0 0 1903 5 6 8 2 0 9 580 279 1904 1905 1906 1907 Seven Year Average 570 208 549 282 584 235 550 288 574 246 559 289 584 234 554 249 575 228 556 271 Y ield s in K ilo s fo r Pour o f th e More Important Products from Crop 1927 Com Beans Wheat Cotton Souroei 6L7 198 729 29U 1928 6 9 8 198 6 9 1 297 1929 1930 1931 513 129 704 268 448 116 756 244 633 188 8 6 9 353 1932 609 2 0 6 703 283 1933 1 9 2 7 to 1933 Seven Year Average 593 188 754 295 6 0 1 281 830 329 Appendix A. , The E jid o 1 Mexioot S Way Out1, by E.. N. Simpson, 1937 That Mexican a g r ic u ltu r e s t i l l . has a long way to advance I-S appar- ant from the y ie ld data in Table XXI referring to representative countries. Table XXI Average Yield per Acre o f Various Crops in Representative Countries, (in K ilos) Country Mexico U nited S ta te s Canada A rgentina Spain I t a ly Com Wheat B arley Rice 247 243 393 465 186 745 951 -O838 2 ,5 4 6 199 6 5 6 8 9 0 769 607 627 3 2 4 360 5 2 6 5 0 6 376 437 473 453 Source« The Ejidoj Mexico's Way Out, by E* K. Simpson, 1937 Cotton 1 0 5 69 -0-0 28 93 - 58 The f a c t th a t Msxloo has a greater co tto n y ie ld than the United S t a t e s , Spain and I t a ly must n o t be a comfort fo r u s . This higher y ie ld i s probably the r e s u lt o f the more fa v o ra b le e c o lo g ic a l and econom ical environment fo r cotton in M exico. The most s ig n if i c a n t th in g here i s th a t th e y ie ld fo r a l l the o th er pro d ie ts c it e d are low er fo r Mexico than th ey are fo r th e o th er c o u n tr ie s. The corn y ie ld i s more s ig n if i c a n t , sin ce i t i s by fa r lower than the United S ta te s or th e Argentinean y ie ld d e s p ite c o rn 's having been r a ise d in Mexico throughout the c e n tu r ie s . Table XXII Acreage and Index Numbers o f Area Under C u ltiv a tio n for Four Crops from 1932 to 19k6, (Average 1 9 )2 -I 9 I4 6 "100) Corn H ectares Index (OOO) No. Years 321+3 3198 2970 1 9 ) 2 19)3 193U 19)5 19)6 19)7 2 9 6 6 2852 3 0 0 0 19)9 19U0 19*4 19142 191+3 191+1+ 191+5 191+6 3091+ 326? 331+2 31+92 3758 308) 3355 31+51 3313 Average 3325 1 9 ) 8 Source: 100 99 92 92 88 93 96 1 0 1 Beans Hectares" Index No. (000) 1+1+5 1+72 1+93 1+60 508 1+81+ 501 563 86 91 96 89 98 91+ 97 109 1 0 3 6 0 1 1 1 6 108 116 95 1 0 U 583 113 6 0 0 1 1 6 1 0 7 1+68 99 102 91 515 100 5 1 0 5 2 7 1 0 3 1 0 0 Wheat H ectares Index (000) No. 640 662 597 Potatoes Hectares Side (000) No. 7)1+ 728 731+ 98 102 92 87 81 81+ 92 97 98 103 115 108 113 112 113 12 11 12 13 15 11+ 16 17 18 23 27 27 27 27 27 11+2 142 11+2 I4 8 100 19 100 5 6 8 528 51+7 596 632 635 6 7 2 750 7 0 0 6 Table adapted from Compendio E s ta d is tio o , M exico, 1 9 63 58 63 68 79 73 84 89 94 121 1 4 2 1 4 2 I4 8 . Another s o r t o f inform ation th a t may r e f l e c t th e a g r ic u ltu r a l economic development in Mexico i s th e area under c u lt iv a t io n . Table XXII - 59s e te fo r th t h i s inform ation fo r c o m , w heat, beans and co tto n fo r th e period from 1932 to I 9 I4 6 . As may be observed from the d a ta in Table XXII, in g e n e ra l, the co m and bean acreage under c u ltiv a tio n has been somewhat I r r e g u la r , w h ile fo r wheat and p o ta to e s, th e area under c u ltiv a tio n has been in c r e a s in g . So fa r as c o ffe e and c o tto n i s concerned, the area under c u ltiv a ­ tio n has shown an in c r e a s e . Taking th e area c u ltiv a te d in 1925 as 100, th e c o ffe e area c u ltiv a te d in 1 9 3 0 was 10? percent; in 1935, 111 per­ cen t; in 192*0, 137 p ercent; and in 19i*l* the percentage was 159* co tto n the r e s p e c tiv e percentages were 9 2 , 1 5 5 , ll|8 and 2 2 7 Por . Per the country as a w hole, th e a rea under c u ltiv a tio n has been as shown in Table XXIII fo r the 1927-1933 p erio d . Table XXIII Area Under Cultivation in Mexico. Hectares* Years 1927 1 9 2 8 1929 1930 1931 1932 1933 ( 0 0 0 5 ,6 9 7 5 , 6 0 2 * . 5,155 5,193 5 , 6 1 8 5,170 5 ,537 Average ) Index Percentage of Number Total Area 1 0 5 103 95 2 .9 2 .9 2 . 6 9 6 2 . 6 IOlt 95 2 .9 1 0 2 2 . 8 1 0 0 5.1*25 * One h ectare i s equal to 2 .I4 7 a c re s. Souroei Appendix A, The E jid o . 2 . 6 2 . 8 The f a i r l y s ta b le amount o f land under c u ltiv a tio n in Mexico i s o ften a ttr ib u te d to th e f a c t th a t the supply o f a g r ic u ltu r a l lan d can­ not be in crea sed suddenly in Mexi0 0 . This may not be n e c e s s a r ily true , «*■ 4® * . ■ -since S te agricultural IamA 1# land of tk e Country* e u ltlT atio n o ■ fe r y sm all proportion of # # t o t ^ t v !here i s a n e c e s s ity to. in crease th e area under fhe constancy i n th e a re a o f cultiTrated land $ay be found in th e Tery lim ite d p o s s ib ility th a t e x is ts in expanding th a t lan d and in th e expmsiTOhess of, in cre asin g it» ' :' S l t t o r i o a i dev-elopaent o f p o litic a ls so c ia l and cu ltu ral, fa c to rs ' have had a decided in flu e n c e oh, m e slew1 progress of a g ric u ltu re i n Ifiexicoo B rie fly s- during the Spanish Solonial Periodi, a g ric u ltu re did n a t W e progress heCsuse th e diaWhuMon o f # ie Iaod and tbe.Cfswdh* ■ i' !''? ' f ' ' ' -" , .■ - , ■ Iikm with, the'. #%& a #it& 9a e /* f the Spanish crown rather than -in accord with the charaoteristics- and. ' .■ in te r e sts -of the agricultural environmont of lex lo t* Since Mescitp became independent^, Mexican agriculture was- characterised by %e existence o f a very large group of real e sta te u n its concentrated in & Tory few hands#- Iho u ndesirable c h a ra c te ris tic s of’ the- la rg e concentration made progress impossible# Since igm > a g ric u ltu re h at been facing- % r e la tiv e ly new p e c u lia rity i n , ■ ■ c u ltu ra l in e ;t itn tic n t« the development Cf agri» # l s p e c u lia r ity .in the breakdown o f th e la rg e ■ ''- r e a l e s t a t e u n its ,and th e ’: form ation o f % J ld c # ., Although f o r ty ye-ars-;- here- -poa'ced t i n Ce th e new A gricul tu r a l . W t i h i t i c n a s ta rte d * end Wkhnwt h a t f o r ty y ears mean m # i n a m ortal life*- ‘t h a t period i t ^ust' h s t a r t f o r th e development o f s o c ia l i n s t i t u t i o n * 'Ih e re fo re ijs i n a 'v e ry general Senssa m may Consider th e f a c t m a t m s t i l l cannot f in a lly appraise, the r e s u l ts o f th e a g ra rian reform# A %*&&* s ig n !f! d&w.b fa c t about Mexican a g ric u ltu re is t h a t m m know improtod a g ric u ltu ra l techniques is. m important fa c to r i s th e o f the eot&bxy* B laoe & W y ea r* a g o t h e iaat&tat&oa# aad, aea in Oharge o f a g fio u itu re have beaome f w i l l a f w ith modem techniques, %t i s alread y know he# M improve crop v a r i e t i e s ^ -ho:# to take care Of resources lik e s o i l W w ater ip a b e t t e r Wayip h # to market th e crops more e ffic ie n tly ^ and so - f o r th . So we hope th a t #n o&tBtandi&g dovelopm at in th e a g r im lta r * o f #&%&#& i& &% lam** d ie t s p r o sp e ct. B e la tic n .of Physical fe a tu re s to the A gricu ltu ral Pcen.omic ^veloia^nt. M in the aW aw a Bbrep Basin, the physical factory q# .Mexico have influenced the economic development of a g ric u ltu re and the establishm ent o f c e rta in p a tte rn s o f agriculture^. Deserving o f a tten d t io n U th e corn .fam ing c h ie fly p ra c tic e d i n %@ Central P lateau area? Among o th e r f a c to r s , th e d lm a te has had a decided in flu e n ce 5u the considerable acreage devoted to th e firm ing of nom» know* meet of tba drop I W la AS m already and -corn, has been, one. of the products, t h a t has .met t i t h more advantages, i t would n e t be im possible t h a t , i n the long run* the adoption o f improved a g ric u ltu ra l techniques could s u b s titu te f o r com e th e r products o f g re a te r economic: W iu e p o r th a t co m could come to be used f o r liv e sto ck feed In &&## to convert i t in to meat and .daily product# @ Also deserving of. attention W the sml^ncmad, w e of agrSeul~ ;■ '/ ' I . „■• i I' ‘ ■■11 . 11' . tore that prevaile in smo regions of the southern part, ef'Sexise 03 -m . WinXy along the coast o f the Gulf o f Mezlco and % e P a c ific QeOan,. W t i s he cause o f th e shallowness of th e S o il and the: ra p id ity w ith tihioh i t s . - 'f e r t i l i t y i t exhausted, In order tp p lan t corn, a p lo t o f Xahd i s cleared by c u ttin g down brush and burning i t , The land 1# then p lan ted fo r two,. Or a t most, th re e y e a rs, consecutively. I t 1#, th en abandoned f o r Si# o r seven year# and allowed to grow Up to bruph again So th a t i t stay accumulate humus and again become fe rtile .,, In ' th e meantime*-.the farm er moves bn successively to the c le arin g and th e p lan tin g o f o th e r p lo ts . Since we a re apealcing of the re la tio n s h ip between geographical, fea tu re # and p ra c tic e s i n ag ric u ltu re^ we. should a ls o mention the p ra c tic e of farming some products,, m ostly cow,' On h i l l s i d e s 'i n places where th e re is, an ir r e g u la r topography,. S qually important i s the p ra c tic e of Sumaewfallow t h a t i# developed where p re c ip ita tio n .is. very scanty," This 'p ra c tic e i s o f th e utmost sig n ific an c e because o f th e f a c t t h a t i t s u b s tra c ts cron= lan d from the already v ery lim ited a g ric u ltu ra l lan d , As ,in th e M issouri B iver Basin,, th e a rid Climate pf th e ,n o rth e rn p o rtio n o f .Mexico has brought about t h e development Of a liv e sto c k industry. In th e northern p a r t of the c o a st of the Gulf o f Mexico th e re a lso e x is ts a liv e sto c k occupation, bu t th is type i s ra th e r a -Stocfefarming in ste a d ' of .a. /S tric tly ranching typed —6) — Table XXIV Mexican I r r ig a tio n Development from Years 1926-191)6 In olu SjLTO• Area Put Under I r r i g a tio n as o f I 9 I4 6 Mew Acres Improv^TAores A gu ascaIien tes Baja C a lifo r n ia Coahuila Colima Chiapas Chihuahua Durango Guanajuato Guerrero Hidalgo J a lis o o Mexico Miohaooan Morelos Nuevo Leon Oaxaca Puebla Queretaro San Luis P. S in a lo a Sonora Tabasco Tamaulipas Veracrus Zacatecas 17,750 209,620 1 7 , 0 0 0 75.840 64.750 40 ,5 0 0 62,718 33.873 27,636 1 2 1 , 5 0 0 2 4 , 0 0 0 2 , 2 5 0 1 0 8 ,9 1 0 Total Area as o f 191)6 Acres 2 0 ,0 0 0 318,530 1 2 ,5 0 0 2 9 ,5 0 0 5 0 0 5 0 0 6 0 ,9 1 8 1 3 6 ,7 5 8 282,500 124,900 282,500 189,650 47,300 39.250 11,000 27,451 3.500 750 8 ,02 0 87,800 1 5 , 0 0 0 1 0 1 ,9 6 8 44,873 55.087 3 ,5 0 0 1 2 2 ,2 5 0 3 2 ,0 2 0 1 5 ,0 0 0 37,543 125,915 26,593 169.973 2 9 5 ,8 8 8 227,388 4 .25 0 2 3 1 ,6 3 8 6 , 2 5 0 5 0 0 1,250 Total o f Large I r r ig a tio n P r o je c ts 1 ,1 0 1 ,7 8 3 937,315 2 ,0 3 9 ,0 9 8 T otal o f Small I r r ig a tio n P r o je c ts 53,358 51,830 105,188 Other Expenses Grand Total Sources 11,685 42,895 2,1)08 122 1,105 40,498 87,441 3 5 ,6 2 3 438 1 5 ,2 1 7 33,118 14,490 2 2 ,2 1 3 I,4 i6 32,676 17,244 127,531 8,201 353 49,286 44,081 5 3 2 6 , 2 5 0 750 64.136 T otal Snestm ent Thousands Pesos 1 1 9 ,9 0 1 3 ,7 2 9 713,025 6 0 , 4 0 0 147,429 1,1 5 5 .1 4 1 989,145 2 ,1 4 4 ,2 8 6 920,854 Mimeograph from the U. S . Embassy in Mexico, February, 1949. — Sh — Tabla XXV Mexican I r r ig a tio n Program Planned fo r Years 19W -1952. I n c lu s iv e . Area to be I r r ig a te d by th e end o f 1952 Total Area New Acres Improved A. Acres S ta te Baja C a lifo r n ia Chiapas Chihuahua Coahnila-Durango Colima Ghianaguato Guerrero BBLdalgo J a lls o o y Michoaoan MLohoaoan N ayarit Nuevo Leon Oaxaoa Puebla Queretaro San Luis P o to si S in a lo a Sonora Tabasco Tamaulipas Veracruz Zaoateoas T otal o f Large I r r ig a tio n P r o je c ts T otal o f Small I r r ig a tio n P ro jects Total 203,750 17,500 92,500 203,750 17,500 92.500 20,000 67,500 22,500 10,000 158,750 175,000 75,000 57,500 182,500 97,500 10,000 12,500 2140,000 155,000 20,000 67,500 22,500 15,000 158,750 213,500 75,ooo 57,500 182,500 97,500 10,000 12,500 362,500 155,000 5 ,000 58,500 122,500 592,500 117,500 20,000 2 ,3 2 7 ,0 0 0 106.0 5 .0 W*.9 2 0 .6 8 .0 35-0 8 .5 2 1 .0 51*. 5 55.1 2 1 .0 I46.2 110.0 2 0 .0 2 .0 1 .5 2 5 0 .0 187. 5 6 .0 173.5 151.8 7 .0 592,500 117,500 20,000 166,000 2,1*93,500 575,000 2 ,7 0 2 ,5 0 0 Planned A ppropriation M illio n Pesos 1 .3 3 5 .1 375.000 166,000 2 ,8 6 8 ,5 0 0 1 2 3 . 8 1,1*58.9 E ngineering and Overhead T otal Cost Souroei 1*1.1 1 ,5 0 0 .0 Table adapted from data o f a mimeograph from the American Embassy in M exico, February, I 9 I4 .9 . — 65 — B r ie f Inform ation About I r r ig a tio n in Mexico* The Federal Government o f Mexico has long r e a liz e d th a t ir r ig a tio n i s one o f the most important e n te r p r ise s th a t should be undertaken to s t a b i l i z e and improve a g r ic u ltu r e . That i s why Mexico has always d ed ica ted e f f o r t s and g rea t sums o f money to bring as much land as p o s s ib le Even p rior to 1910 ( Table XXVI) th e acreage brought under ir r i g a t io n . under ir r ig a t io n was c o n sid era b le. I f we take in to co n sid era tio n the techniq ues then a v a ila b le to undertake e n te r p r ise s o f th a t nature and the sta g e o f knowledge o f th e a g r ic u ltu r a l r eso u r c es. 1 9 2 6 From 1910 to , the r ev o lu tio n a ry p erio d , ir r ig a t io n r eceiv ed l i t t l e a tte n tio n as i s shown by th e very small amount o f land brought under ir r ig a t io n during th a t p erio d . Sin ce 1926, ir r ig a t io n has received the a tte n tio n th a t i t d e ser v e s. Table XXVI in Mexico. Total Areas Brought Under I r r ig a tio n by Epochs Epoch Acres Up to 1910 1 1 9 1 0 - 1 9 2 6 Sotiroe i 1 Unknown Unknown 9 2 1 , 0 0 0 , 0 0 ,5 0 0 ,0 0 0 ,0 0 2 ,4 5 0 ,0 0 0 3 5 0 ,0 0 0 1926.19146 1947-1952 Total ,7 Pesos Spent 2 2 ,1 ,8 4 5 ,0 0 0 6 8 ,5 0 0 7 .1 1 3 .5 0 0 2 1 ,0 0 0 0 0 ,0 0 0 Table adapted from data o f a mimeograph from th e American Embassy in Mexico, February, I 9 I4 9 . Table XXVI shows the area brought under ir r ig a tio n or th a t which w i l l be put under ir r i g a t io n , and the money sp en t, or th a t w i l l be sp en t, by major p eriod s sin c e b efore 1 9 1 0 up to 1 9 5 2 , in c lu s iv e . i LEOEKD CO D is t r ic t s in P ro ject ( D is t r ic t s in C onstruction . x • . D is t r ic t s in Operation Fig* 7 L ocation o f D is t r ic t s o f I r r ig a tio n in M exico, 19^8. Map adapted from* \ S1 I r r ig a tio n in Mexico by Horace H. Braun, A ttache to the U. S* Embassy In M exico, February I , 1919. I ; —6 7 * CHAPTER 17. POPULATION ASPECTS Population of the Missouri River Basin Trends i n Total and Farm Population. The movement of people into the Missouri Basin States began with the agricultural occupation of a small part of the State of Missouri near the beginning of the nineteenth century. Population spread from Missouri to Kansas and Nebraska a t a comparatively slow rate u n til the passage o f the Home­ stead Act in 1862 and the reaching out of the railroad. These deve­ lopments encouraged and fa c ilita te d the movement of great numbers of people into the lower part o f the Basin. Since then the movement of the population has been subjected to , among other things, the drouth fa cto r . Between 1880 and 1890, a r e la tiv e ly wet period, there was a considerable increase in population in the Missouri V alley Plains S ta tes. Table XXVII shows the increase of th is period. Table XXVII Population Increase of the Mis­ souri V alley Plains S ta tes, 1880-1890. State Kansas Nebraska South Dakota North Dakota Montana Wyoming Colorado Source* Population Increase (%) 1+3.1+ 134.9 254.0 417.4 265.0 200.9 387.5 Missouri River Basin, Senate Dooument 19! , A pril, 19I44. Severe drouths occurred in I889, 1890, and 1891+ and, partly as a r e su lt, the rate of increase was pushed down as is shown in Table XXVIIL — 68 — Table XXYIII Population Increase o f the M asou ri V a lle y P la in s S t a t e s , 1890-1900. Population S ta te Increase f t ) Kansas 3 .0 Nebraska 0 .3 South Dakota 1 5 .2 North Dakota 67 .1 Montana 2 0 .3 Wyoming U7.9 Colorado 3 0 . 6 Souroei M issouri River B a sin , Senate Dooum ment l g i , A p r il, 19Z&. In th e deoade from 1930 to 19U0 th ere was a return to drouth c o n d itio n s . The ca ta stro p h ic drouths o f I 9 3 I4. and 1 9 3 6 reduced pop ulation in fou r o f th e P la in s S ta te s and slowed up th e ra te o f in c r ea se in th e o th e r s . In g e n e r a l, th e in crea se o f the t o t a l population has been in a d if fe r e n t proportion when compared fo r each s ta te forming th e B asin. While in the s t a t e s o f M issouri and Iowa th e in crea se was r e la t iv e ly sm all during the period from 1870 to 19^0, growth fo r North Dakota was very la r g e . Table XXIX Population Growth in the M issouri Basin S ta te s from 1870 to igliP . Population Population S ta te in 1870 M u ltip lie r in 1940 M issouri 2 .2 2 0 1 ,7 2 1 ,2 9 5 3 ,7 8 4 .6 6 4 Iowa 1 ,1 9 4 ,0 2 0 2 . 1 2 5 2 ,5 3 8 ,2 6 8 Kansas 364,399 1 ,8 0 1 ,0 2 8 4 .9 4 5 Nebraska 1 0 . 7 2 0 122,793 1 ,3 1 5 ,8 3 4 Colorado 39.864 28.190 1 ,1 2 3 ,2 9 6 Montana 27.180 20,595 559,456 South Dakota 11.776 54.600 642,961 Wyoming 9 ,118 27.510 250,742 North Dakota 266.700 2,405 641,935 Source: M issouri River B a sin , Senate Document 191, A p r il, I 9 W1 . fha Mlsscsayi Basin had 5»a,8 percent; of the to ta l population of ■&o Dhited States in 19# 3 7*38 percent of the rural population^ and 8*26 percent of the Hationag ru ral fam population= fa th a t s w year Mie population of the Basin amounted to 6*839*766^ of ttMeh ■ or 60=3 percent wag rural population* #f this®. 36@S per* cent was farm population a n d . r u r a l non^fam= Of the population litfiag on farms in the Mssouri Basin,, the smallest number are in the Upper Watersheds and Me larg est am ber are Sn the Bastem Pl&inSd fhe lower portd on of the Basin is the subdivision which is the most densely populated® M at subdivisioa is much lik e the eastern p art of the United States as f a r as population density and rural^Urbam composition i s oencerned= Me population of the JBssourl B iw r Basin has fo ile d to keep pace with the population growth o f the Mdtim as a Mole® While the Hatlon4S population has Increased more than $0 percent sin ce 192Q> Me population o f th e Basin has increased w r y lit t le = Me population growth reached i t s peak about 192G and showed a steady decline from 1933 to 1 9 # » Muring th is lapse o f time there was a lo s s o f about 790» GGG fa m people® or 2 3 percent* I t is: true that the now farm population has increased 26 percent since 1920® but th is increase ia in su ffic ie n t to males up for the lo s s in farm population» and® moreover® i t In' by no stems comparable with the 85 percent increase in the non? farm population of other part# of the Haflon= Table 30X shows the population change for. the Basin by decades from I860 to 19 # = - 70 Table XXX D ecennial Rates o f Increase or D ecrease ( - ) In the Population o f the M issouri Basin S ta te s from I860 to I 9 I4O. 1930 to 1940 S ta te Colorado Iowa Kansas Minnesota M issouri Montana Nebraska North Dakota South Dakota Wyoning 1 9 1 0 1 9 0 0 1 8 9 0 to to 1 9 3 0 1 9 2 0 to 1910 to 1900 4«3 4*1 -4*5 -5 « 7 -7 .2 1 0 .2 2 .8 6 .3 7 .4 6 .6 —2 .1 6 .3 5 .3 8 .8 1 1 . 0 1 6 . 0 8 .4 2 .7 -4*3 8 . 9 Average 0 . 7 U nited S ta te s 7«2 Source: 1 9 2 0 1 7 . 6 8 .1 4« 6 1 5 .0 3«4 4 6 .0 8 .7 4 8 .0 -0 .3 1 5 . 0 1880 to 1890 3 0 .6 112.7 1 7 .7 43*4 1 6 . 7 5 .0 3 3 .7 1 8 7 0 1 8 6 0 to 1880 to 1870 3 8 7 .5 36.1 1 7 3 .4 7 7 .6 2 6 .0 70 .3 0 .5 67.1 1 5 .2 4 8 .0 1 3 4 .9 4 1 7 .4 2 5 4 .7 33«0 1 8 .5 6 .0 54«5 1 1 .8 8 0 .8 45*4 5 8 .0 2 0 1 . 0 1 4 3 .4 734.5 1 28.0 5«3 12.8 33«8 3 0 .1 153.8 2 0 6 .4 16.1 1 4 .9 2 1 .0 2 0 . 7 2 5 .5 1 2 . 1 9 . 0 6 7 . 8 2 5 . 6 1 6 . 0 2 6 5 . 0 1 6 . 5 7 6 . 9 2 39.9 1 5 5 .6 45*6 9 0 . 1 326.5 193.2 193.2 2 6 7 . 8 1 5 6 .0 2 2 .6 3 0 . 1 U nited S ta te s Census o f P o p u la tio n , I 9 I1.O# One o f th e fa c to r s r esp o n sib le fo r th e lo s s in the B a sin ’s popu­ la t i o n I s em igration . Per In sta n c e , th e S ta te o f Nebraska l o s t by em igration about 228,000 p erson s, which i s equal to 18 percent o f th e p op ulation o f th a t s t a t e , during th e period from 1 9 3 5 to 1 9 4 7 « During the decade from 1930 to 1940 th e s t a t e s o f the B asin (excluding Colorado) su ffe r ed a n e t m igration o f minus 4«2 percent o f t h e ir p o p u la tio n s. The Dakotas had the g r e a te s t em igration and Minnesota and Wyoming the s m a lle s t . There are many fa c to r s which cause em igration o f th e population from the M issouri B asin , b u t some o f th e more important are th eses ( I ) i n s t a b i l i t y of a g r ic u ltu r e caused by the p e c u lia r c lim a tic condi­ tio n s o f the Basin, (2 ) the s t i l l r e l a t i v e l y sm all degree o f in d u s tr i­ a liz a t io n in the a rea , and (3 ) b e tt e r job o p p o rtu n ities elsew h ere. M looking to r th e oay;s©;s.: th a t h a w the y$te o t ' ■.growth o t population* wo muet oonsidsr the- trend of the Ornde-Slrth ■■ Sfete W ot the tren d o f the Crude Death Sata- l a a d d itio n to th e e ffe c ts' em igration j**t Considereati The Crude' Birth, and Death Shtee f o r . th e s ta te s o f th e I i s s ouri Basin remained e s s e n tia lly the same during,' th e I928”l9 to periods, w hile t h a t -for the E ation a s a whole showed a ,deoreusew furtherm ore^ th e Death .late was: I o w r r e l a t i t e to the Birth: Kfeta In the EissOtiri Baein- than i t was In th e Dhited S ta te s m a whole Ihe exoess o f # e B irth la te ' oyer, th e Baath s&te of the "-Basin had Been g re a te r than th a t fo r th e Ia tio n as a whole* hu t i t s in cre ase has heen slower th an th a t o f the- -Dnlted g ta te s s - although th e M rth and death rela tio n a h ip d i n t h e -Basih M w ■Been such th a t & rapid g # w th '' in population might have occurred^ ■out-m igration has Been so heavy ■' t h a t population growth has Been held t o s nominal r a te and even h # declined i n some-areas w ith in th e Basins- ' # h # ,%d Drhaa Composition^ In iiie early days of settlement* most of the people in the Basin lived, on' fsKsror or in small towns* ■ %& a#0D shout hg BdroW lived oh f#r &*4 compared with 37 Bercdntibs 19U0 and approximately 3k- percent a t the present time* The rural population of the Missouri liv e r Basin has been decreasing a# time goes by* but the decrease has been smaller than the corresponding ' decrease for the Dnited States* Bata, showing these relationships -Sge g iv g a -IR -T a b lt azacs* The improvement of a g ric u ltu ra l techniques and th e development - 72 o f in d u stry are the p r in c ip a l fa c to r s th a t have brought about th is decrease o f rural p op u lation . So fa r as the urban pop ulation i s concerned, the rev erse s itu a ­ tio n is tr u e . That i s , the urban population has been in c r ea sin g p ro p o r tio n a te ly to the t o t a l population s in c e the f i r s t U. S . Census was tak en . B ut, as in the case o f ru ral p o p u la tio n , the urban p op u lation o f the M issouri Basin has in c r ea se d le s s p ro p o rtio n a tely than fo r th e U nited S t a t e s . The same p r in c ip a l fa c to r s poin ted out fo r th e d ecrease o f rural population have perm itted an in c r ea se in the urban p o p u la tio n . These data are s e t fo r th in Table XXXII. Table XXXI Percentage o f Rural Population in the Basin S ta te s from I860 to 19lt0. S ta te 1 9 1 4 0 1930 1 9 2 0 1880 1 8 7 0 1 8 6 0 55 79 81 66 68 73 72 91+ 92 66 68 85 89 81 75 82 86 93 93 70 88 87 86 81+ 75 85 82 100 100 100 86 91 90 90 83 1 9 1 0 1 9 0 0 1 8 9 0 86 81+ 70 50 69 Tl 59 58 61+ 71+ 89 87 70 52 71+ 77 66 61+ 65 76 93 90 71 Colorado Iowa Kansas Minnesota M issouri Montana Nebraska North Dakota South Dakota Wyoming 1+7 57 58 50 I4 8 62 61 79 75 63 50 5 2 6 0 6 3 61 51 1+9 66 65 83 81 69 65 Average 6 0 6 3 67 69 73 71+ 82 89 90 U nited S ta te s 1+3 Uk 1+9 51+ 6 0 6 5 72 71+ 80 Souroei 5 6 53 69 6 9 U nited S ta te s Census o f A g r ic u ltu r e , I 9 I+0 . 1 0 0 - 73Table XXXII Percentage o f Urban Population in th e Basin S ta te s from I 8 6 0 to 1 9 i|0 . S ta te l9hP 1930 Colorado Iowa Kansas Minnesota Missouzd Montana Nebraska North Dakota South Dakota Wyoming 53 W 142 50 52 38 39 20 2h 37 50 39 39 Ud Si 3 I4 . 35 16 19 31 Average UD U nited S ta te s 56 Source* 1 9 2 0 1 9 1 0 1 9 0 0 1 8 9 0 I4 8 36 35 a m U5 21 19 34 36 16 29 50 30 29 14 1*6 35 26 11 13 29 36 33 5 6 51 146 3 1 3 1 1 3 2 5 2 2 3h 32 35 2U 7 10 2 7 1880 31 15 10 1 9 2 5 18 13 7 7 1 8 7 0 1 2 13 14 16 25 15 18 I8 6 0 14 9 9 9 17 2 9 27 5 8 34 2 9 31 27 2 5 17 16 12 I* W 35 28 26 20 U nited S ta te s Census o f A g r icu ltu r e , 19i|0. - TUMexioan Population Yrenda in Total and Fam Population* The growth of the to ta l Mexican population has been a steady and sig n ifica n t one since the early eighteen hundreds. Giving no considerations to the growth be­ fore the Spaniards arrived in Mexico in 1516, the growth of the popu­ la tio n was variable between 1520 and 1800. Since 1800, however, the population has been growing rapidly, and in recent years the rate of increase has been very great. Table XXXIII Growth of Population in Mexico by Selected Years Between 1521 and 1952. Year 1521 1795 1805 1810 1820 1830 18U2 1852 1861 Inhabitants (Thousands) 9,120 5.200 5.765 5,810 6,20U 7.996 7,016 7.662 8,213 Year 1871 1880 1889 1900 1910 1921 1950 19U0 19U7 1952 Inhabitants (Thousands) 9.097 9,908 11.396 13,607 15,160 1U.335 16,553 19.65U 23,253* 25 , 623* Figures estimated. Souroei a. Raral Mexico, by Nathan L. Vlhetten. b. Irrigation in Mexico, mimeograph from the UV S. 'Embassy' in Mexico. The estimated increase in population w ill be 2,570,000 during the period from 19k 7 to 1952 which is an increase per year in round figures of i|00,000 persons. Perhaps i t should be remarked th at, although u n til recently the population of Mexico has increased slowly throughout the years, Mexico has many more inhabitants than any other Lp.tiawAm©rica?a, eooatfy ozoept Bra&il» IBe pepulatitoi o f MexW Shewed & great f e r t ilit y * Imeaa a t eon® timeSj, tW growth was stationary or even down* as i t w e during iaost o f the years during the Spanish Colcmihi and the Eexiesn Revolutionary periods* i t m e dm to* among other faotore* inadequate eooHOtoio3 san itary end ednoatione! conditions that prevailed during •those periods end to <saigration to foreign oountries* Meag the more important factors accounting for the growth Of the Mexiesm population Is the high M rth rate that Iiasrioo always has had* fhs death rate has always bean high# but even so s the birth rate has outran i t leaving m excess o f births over deaths that i s greater or a t le a s t equal to that in the Cnited Sbates» Immigration accounts for very l i t t l e o f the growth o f the population* 41 though Im dgm tion almost always has exceeded Otoigmtiona during the 193Q^19W decade immigration rep r e c it e d about a tenth o f the to ta l population increase* the great f e r # l i % of the Msxicen population i s due to the agricultural and rural conditions of Mexico# since * in general# the countries which, are le s s in d u str ia lisod*, le s s urbanised# or more agricultural have a greater power o f natural increase in th e ir popa« laid on* For the statesm en of Mexico* or fo r th e men in charge o f Improve la g the s o c ia l in s titu tio n s * th is n a tu ra l upward tendency in th e growth o f the population c a lls fo r a thorough study and ev alu atio n o f the - resources Wlish W d h to a ffo rd a dyoent’ ioTrol of liv in g fo r the. 'populatiotto % c o n tra s t TSilth th e W t e d Stated#- # 0 expression r a r a l pdpu* Nation in Mexico is. a synonyia Cf th e expresgi.on f$m population! th a t 10 # Z& Mexico e s s e n tia lly #11 the .rural population i s engaged in agrieulturO o Mexico i s la rg e ly & r u r a l c l r i l i nationo $ f w ' c la s s ify a s r u r a l a l l in h a b ita n ts liv in g In l o c a l i t i e s having l e s s than inhabitants^. then about tiT e -th iris# ' p e ro e # o f th e t o ta l In h a b ita n ts in .Iiexido may be. designated as ru ra l in comparison ■with o n ly 13 »5 percent f o r th e W t e d States* ■ %f m c la s s if y a s rural ■ a l l inhabitants i n Mexico in l o c a l i t i e s h ating %OO0 or 10,000 .inhabit t a n ts ^ a c la ss ific a ti.o n t h a t w ill bo more correct than th e f i r s t -one fo r M W ooi th e proportion o f r u r a l population m ill b e abaut Tg o r 80 percent* • ! , , . - . Vv-, '- ; ■■ • . ■: - ‘ Sbwver,, the proportion o f -rural population has been, decreasing3 i n 1910 the percentage was 77*7% whersas i n 1 9 # i t whs 6 # 9 , fo r th e country ae a whole* o f the economically a c tiv e popu­ la tio n those- engaged in agMoulturo- decreased from 70=2 percent, in i950 to 63 percent -in 1 9 # » Iho -South P a c ific region th a t comprises- th e s ta te s o f Oolimap, Ohiapasp: Guerrero*' and Oaxaca has th e la rg e r proportion. -Of people dedicated to a g ric u ltu re * Whereas' the IW th Pacific-, region shows the sm allest percents the proportion o f Cgri= cultural, population i # c lo se ly re la te d to- the hlse- .of th e community^ t h a t I s 6 the ,'smaller th e Oommunityi, the -more people engaged in. Cgri= culture* and conversely* th e la r g e r th e Oommunityp the l e s s people 4n this aGtitityo, ,Digtfilmm,#. #s*&*a% p*po&*t&oa &# 7 9 # taamnly distributed geographicallyo STearly half of her inhabitants are crowded into the Gmtral Ifesa Which coapriseo lees than one-sewnth of the total Imd are a 6 On the other hand> the,re are Tagf areas in,' other -part®, of the country which remain a im # uninhabited, M general and for the country &e &#koi** i t appear* that the population tends-to follow the higher altitude#* Whenever the: altitude drop# below 3 ,2 0 0 feet,' the population tends to become more sparse® . there ere important exceptions to this, tendency® ' W Isthmus of fehuantepee, 'has clusters of population in low altitudes, as hate parts pjf the .at&tb* OfTferaerwBf-Xboatan*. aba #ia@&o&« m e t # the atate' CapWle, ' ■ '. ' , ' - ' the placed Where the population is more concentrated,, are located at a h i # altitude® Twelve of the $1 state. .Capitols are located at m altitude in excess of per- k ^Q feet, with a density of mere than l& A<xu@per square split** 4%*»** are eight state capltols with a population density of m m located at m than 60 inhabitant's per square mile, and which are' altitude of more then 6#ooo feet abet©, sea ieyeli. ' The ' State of .Sonora, located at an altitude o f fT J feet has a population density of only 5.2, while Oampeohe and Quintana. Soo5 m th altitudes .of sixteen, end tea feet., have densities of and 1*0 inhabitants per . square mile# respectively^ " There, are tm principal factors' that cause the conomtratien. ef population at high altitudes^ (l) The fe ar'th a t the people have of the w rlQ ua tro p ic a l diseases® The c en tral high lands M m a more o#&. Portable clim ate and a re regarded as having a m oh more healthful emriromaont than the I o m r tro p ic a l a re a s » The amount o f r a i n f a ll (S ) and I t s seasonal d i B tr iM tlon => Wot only i s th e C entral !Iesa higher than most o th er areas o f M a x im # . M t fl excepting some o f th e c o asta l areas* I t i s also more Mmid6 Population settlem ents tend to avoid th e v a s t s e a l-a rid regions o f the n o rth m d to c lu s te r in Me more humid re g im e of the Central Hesa0 Rural and Wrhan Oomposltionfl th e re has been a d is proportionate r e la tio n between th e ru ra l population and th e .urban p o pulation» the ru ra l population M s been g re a te r both in absolute numbers and as a percentage® W everthelessfl w ith th e passage o f tim e # th e percentage has been declining^, although t h a t decline has no t been as rap id as i t has been In the Whited S ta te s « The contrary s itu a tio n i s also tr u e ; the urban population has shorn m increase® That in cre ase has taken p la te both in ab so lu te population and in percent® Zn general® w® can expect a continuing in c re a se in urban population as a r e s u lt of th e in d u s tr ia lis a tio n th a t Eexlco has eiartedo Ror th e country as a whole® th e l o c a l i t i e s having over IO3GOO in h a b ita n ts gained in cre ase i n population of 2601 percent from 19$0 to I9I4.O® m For the l o c a l i t i e s having IGflGOO. or le s s in h a b ita n ts th a t approximate more th e c h a r a c te r is tic s of r u ra l population® the corresponding increase was only 16»8 p e rc e n t» The in cre ase o f urban population has n o t been even fo r a l l o f the regions?- The region M a t has become by f a r Me most u rbanised i s the O eatral Region which, i s influenced by the population d e n sity of the- c i t i e s o f Mexico and Guadalajara=. But. most o f th e s ta te s of th e South PaoifiO region not only inOreased t h e i r urban populations h u t t h e i r OltMiS M a t population from 1930 to 19l*0. . $0 Speak Of r a c i a l composM tio n in Mexioo' is. by no means an easy matter*. WOi Oannot draw a d e fin ite d iv iding lin e fo r each recto Perhaps i t was due to t h i s f a c t t h a t the Mexican census has ignored the m atter of ra c e sin c e 1921* adopting in stea d c u ltu r a l and economic considerations a s a base fo r th e r a c ia l stratificatio n = ,, th e p rin c ip a l r a c i a l groups a re :s -M estlao groups (2) the In d ia n group*, and (3) th e White, group* ( I ) th e .She ■. predominancy in number o f each ■r a c ia l group I s in the o rd e r In whidh they are mentioned*- According to fig u re s of th e 1921 census* th e ' r a c ia l proportion f o r the t o t a l population was as follow ss Mestizos# 60o3 percents Indians* 29*2 percent's and W hites, IQ0J p erc en t, Compared w ith other Latin^A serican Countries* M etiw has . a- l e s t e r p ro p o rtio n o f Indian population than h a w Bolivia* 'Guatemala* Ppru6'' or Bduador* ". . . - ' Of th e l i s t e d r a c ia l groups*, th e Tiihite end the Mestizo group# a re more homogeneous w ith in themselves as f a r a# c u ltu re and language a re concerned* We. may th in k o f those- two. groups as: th e ones building* shaping and rep re se n tin g Mexican c iv iliz a tio n , ; The understanding among these- people, has been increased because, they have, no t e i,# e f geographic or language barriers* , and* -furtherm ore, -th eir ■in te re s ts , and w 80 <= ■• ' ■’ , ■■■. . r ambitions aro Vory miOh the Same? ■ I t yrould be d e sira b le to- have th e Seime c h a r a c te r is tic s within, the Indian gronp, b ut#. unfortunately^ th is, i s not th e case*, In th e f i r s t place# th e re are a g re a t v a rie ty - o f t r ib a l groups among th e In d ian group0 . in th e -second place# each one o f th ese has i t s om customs# tra d itio n s # *and general m ltu ra l developmento . ,. ' According to th e fig u re s o f th e %9k& -census o f population# percent of th e t o ta l population spoke In d ian languages exclusively® 7 4 j. percent SpOke Indian and-Spanish languages# and 85.1 p ercen t spOke the Spanish language*. .Ihe percentage who speak, the Indian, language i s g re a te r in th e le s s densely populated areas= 'fhe p e r- . pontage o f to ta l, population who Sppak th e Indian language i s g rea ter in ' th e South. Pacific- region and smaller in the Sprthern region® From th e foregoing i t can be appreciated, th a t the Mexican-c u ltu ra l and economic problems can be worked c u t in ah integrated - manner only a f t e r development of a tra n s p o rta tio n and communication System in to the is o la te d Indian areas and only a f te r the le a rn in g of the Spanish language by a l l th e people in the country= Fduoational Composition= BTom h is to r ic a l inform ation we know th a t the educational asp ect o f Hexico has always received attention= The follow ing f a c ts a re in support of th is statement= I* The f i r s t school in the Wew Wprld was-. e stab lish ed a t :TexQddd in 1525 by Fray Fedro de Gante= . •2o- The f i r s t p rin tin g press in the-.Jfew'WCrid was s e t up i n 'm @1 «" S ixieo in %5$% M 4 th e f i r s t %apk was .published th e re th e fello tria g . ' ' ■' ■ ■ ■■ - the S a tidhs.1 S h iv e rsity of S x i S was fotihied in 1551 r e ig h ty -fiv e years before Harvard was- fo'uaded* As we w ill see l a t e r m# th e H iite r a o y in ie iie o is- s t i l l great* the follow ing guestioh seems-: a lo g ic a l; one to r a i s e o S ty - ■is l l l i t e r a e y "S till se gyeat i f eSueation w as,Stiimilated sin c e sue'fe 'e a r ly tim esf the answer SeemS' to he "#%%'- edneatiOh" developed 'aeeey& in g to h ie to rio a l cirouaistaaces, end those eiroufiistanoes: were not. favorable to u n iv o rsal education fo r a l l ..of the. people= th e re were i n te r e s ts th a t favored education fo r a very few people= furtherm ore, education was biased being q u ite a p a rt Smm- th e -pure s c i e n t i f i c haw-" Is d g e v . i t was n e t u n t i l , a f t e r 1 9 # t h a t education began, to receiv e ■ an unbiased, r e a l i s t i c end s c ie n tif ic emphasis.= - Since then* th ere began the development and improvement o f c e rta in educational 'in s titu ­ tio n s such a s Sural Hormal Sehools0 H #dol# o f A griculture* Indian Sdhoolsa A g ricu ltu ral Oolleg e t, end so forth= 0 Ihe re c en t development education may b e seen i n fab le X W $*. \ m b ie X W r #M *er of Hiban # d W e l School# - ' in Mexico from 1910 to I9b$* .,.j v AmiwiW w^ iMi npi iri mi'll■ Urban %bgr . 1 # 19M 1#* a su r a l ■ fe ta l ,8#he%p._ M S# W Y$ k i# M in c r e a s e _^ e ^ c e n ,ta ^ ie * W 15*795 16*605 L 2 0 ,7 8 5 , W W 1 1$ ......j a u . Sbureeii Oempendlo H tta d le tie g * :. 19W* Mexlce- . As iS' a p p a r e n t thd of .rural schools I s ix t y g re a te r than th a t of urban schools, p o ssib ly because the number o f ru ra l c h lia re n oho need, schools i s greater* fudged by the number of schools^ education Ms. received g re a te r a tte n tio n now th an formerly^, Se In crease in th e number of t o t a l schools has been accompanied by an In crease in the nuzrber o f children who atten d s-'. W eiag 1 ^ 2 as 100 pereentg th e lnden number o f ■children a tten d in g school in 19h5 was 121)- percents As a r e s u lt of th e g re a te r number.of c h ild re n attending sdhools each year* the percentage o f l i t e r a t e population of ten yearno f age and over M n increased^ in 1900: th e percentage was. 26s in 1910» 90s Sn 1921.* 3ii| in 1930? Iftl and i n I 9I10 i t was 1#» Henloo stan d s higher then European co u n tries ,in ill i te r a c y * but lower than Egypt* Ecuador* Peru and .Bolivia= S e lativ e to- the mutibef o f students attending, schools * the types o f in s tr u c tio n rank In. the follow ing o rder o f importances 1«. S uperior Primary in s tru c tio n 2* fommeree 3* Ik go W ic ia e I / Aawyer M ra l fea c h e r do Other Eaidmated in th is way* the p ro fessio n o f agri-culture ranks on the= l a s t level* Although t h is inform ation cm no# be- taken aa <m enact index o f th e Importance among the d if f e r e n t professions * i t Is- a measure ■ o f value and OKiphasia9 " / . -fti W m. speaking 85 *» ■ e p sc i^ l mention, should % ,made u f oi tho f a s t th a t iii 19% the P resident o f M9O&0&* UIsjaual, A tila Oa#oho, issu ed a decree t h a t o b lig a ted a l l ,persons knew how to read end w i t e to teach th e i l l i t e r a t e reading -m i w ritin g »_ fhe effective*.. h&s$ o f t h i s approach m $ be appreciated, by th e f a c t th a t o# August. 21» 19W) a to ta l Cf l.dl{h0»79h I l l i t e r a t e persona 'between th e age®Of -a # and f o r t y years -had Ie a m M how to read and to write® • 'a — 81+ — CHAPTEH V. D IS P O S A B L E RESOURCES TO COPE W ITH THE PROBLEMS In Mexico H ydrological C ondition*. Prom a h y d ro lo g ica l sta n d p o in t, the area o f the Republic o f Mexico i s d iv id ed in to th e fo llo w in g zonesi Ie The Arid Zones where a g r ic u ltu r a l production i s sm all and u n certa in w ith out ir r ig a t io n . 2. The Semi-Arid Zones where crops are obtained by dry-fanning l e s s than $0 percent o f th e y ea rs. 5. The Semi-Humid Zones where crops are u s u a lly p o s s ib le w ith­ out ir r ig a t io n , but where ir r ig a tio n i s d e s ir a b le to in c r e a se the y ie ld and t o in su re a g a in st dry sea so n s. i*. The Humid Zones where good crops can be obtained each year w ith out ir r ig a t io n . The corresponding area o f each zone mentioned above i s in d ica ted in Table XXXV and shown in P ig . 8 . Table XXXV Hydrologic Areas o f Mexico. Zone Acres % o f T otal Area Arid Semi-Arid Semi-Humid Humid 253,232,500 1248,451,700 5 1 ,1 0 3 ,2 0 0 32 ,9 8 3 ,9 0 0 Total Source t 485,7 7 1 ,4 0 0 52.13 3 0 .5 6 1 0 . 5 2 6 .7 9 100.00 Mimeograph from th e U. S. Embassy in M exico, P eb ., igitS* The hydrological area division s are, however, far from showing the agricultural p o s s ib ilitie s of the Ration. Much of the national area i s unsuited to agriculture, regardless of hydrological conditions. ] Arid Zone ] Semi-Arld Zone I Semi-Sumld Zone I Htnald Zone 10 .5 2 # 6 .7 9 # the Bepubllo o f Mexico. Sources Braun, Horace H ., Irrigation In Mexico, Attache to tiie U. S. Embassy in -# 6 tapdgraphioal chafacterj-stdee and a v a ila b ility of w aters fh© fol^ovr® 4ng d ata show the th e o r e tic a lly p ossible a reas whioh can tille d ■ from & s t r i c t l y top ograp h ical p o in t o f y le m P o s s ib le S am iag A tm o f Me^ioo*. . 3 m * b l4 # # z BbtAl # Of 3#a& Acre# _th e o re tic a l A tm -of the Zone t i l l a b l e Area GOpatry %a Ardda Semi-Arld and Semi-»Humid soneS ?: Aeree fo r xhloh -water i s avail# a b le fo r ir r ig a t io n %?,5&9vOQ& 5* B W d gener m i l c # e area for' W ie h lrrlga?' t ie n i s n o t n ecessa ry . Area su itab le for dryfa m in g s So w ater ■ available fo r ir r ig a t io n 3 t so oga:OG.d ,JfeEimum th e o r e tic a l T illa b le Area 58,5QG,@0Q SoarOeg 69*9^ 9.5# 1*0^ 6&*6# 7*W Mimeograph from the U» S« B iiaasy in Mexiooy W k5* While 5 9 s00D5000 a cres ,am th e th e o r e tic a lly p o ssib le a re a to t i l l s i n 1 9 # the O p ltlw te d a re a tfiss 'tiply i.il, p o rte n t o f that-figure*. Of th is, percentage^ f$ percent w # # i r r ig a te d Iand^ S»i percent In humid Iandfl and 31 «6 p ercen t was dry=»farming® Main Streams..and Irib u ta id e si0 Sexiee has many riv e r e 5 b u t, unfortunately* the g re a t m ajority o f them are, u n fit e ith e r fo r navi­ gation*. o r fe y providing w ater f o r a g ric u ltu ra l, .purposes* perhaps many o f the r iv e rs haw .considifable e c # l o W ine* 'ih e te chaw eteris'K os Of the riv ers r e su lt from th e f a c t t h a t th e . two g re a t e e rd ille ra s which tra v e rs e the country from north to wonth form the p rin c ip a l - 87 w atersheds, and, w ith the excep tion o f a few streams in the p lateau r eg io n , m ostly in the Mesa d el N orte, p r a c t ic a lly a l l the r iv e r s drain d ir e c t ly e ith e r in to the Oulf o f Mexico or the P a c if ic Ocean. Most o f the r iv e r s a r e , a cco rd in g ly , r e la t iv e l y short and to r r e n tia l mountain stream s. Table XXXVII shows the r iv e r s th a t are important from an a g r ic u ltu r a l or n avigab le p oin t of v iew . Table XXXVII Mexico. Lengths and Basin Areas o f the More Important Rivers in S ta te River TamaulIpas Guanajuato y J a lis c o T laxoala Tamaulipas Tabasoo Sonora Durango V eraoniz Chiapas S in a lo a Baja C a lifo r n ia Sonora S in a lo a Source* * Only Bravo Lerma y Santiago B alsas 0 Mezoala Panuoo Usumacinta Yaqui Nazas Papaloapan Mazcalapa FUerte Colorado Mayo S in a lo a Length in M iles Basin in Square M iles 1739 72,568 576 U22 U97 Slit 49,601 43,390 33,968 26,248 25,476 2 6 1 1 9 , 6 8 6 5 2 2 335 W 255 1552* 217 15,054 13.896 13,124 2 1 7 Rincon, Tomas Cepeda, The Mexican R epublic, M exico, 19b l. 9 6 k ilo m eters o f t h i s le n g th are w ith in Mexico. Of the r iv e r s c ite d above, ir r ig a t io n p r o je c ts have been accom­ p lish e d or are now in p rogress on the Lerma y San tiago, Yaqul, Fuerte, Colorado, S in a lo a and Papaloapan. Other r iv e r s n ot shown in th e Table bu t on which ir r ig a t io n work has been ca rried out or i s now under way are* River Mayo in the S ta te o f Boaora^ th e r ite r s Ifantej, Pnaifioaoion and Paio in th e g ta te of faznaulipasi - S t W Bnehiate in Bhiapaes and Md Verde in th e S ta te o f Ban Im ie PotoM ® ' , ' ' I , Sn Phe I E ts m r i B ite r Badin H ydrological Gonditlonso M W r BaeWa ihere are many n i te r s in the # g # n r i Boae o f # e m o r ig in a te i n the B d#y Mountsins0 She larg est: drainage b a sin i s t h a t o f ihe. M sso u ri S iw r whose c h ie f U rih ataM et Inolnde th e -Tellowstones the P l a tf s fl and the ihms&eh • # e source Of w ater' f o r the Wesbttrl. '.S w r and it,® triM ta rie s h re r a in and enom #n#f provides mere than, % th ir d ,of Uhei w afer o f . • th e tipper MosottM# . Bfrebm SOw^i therefore,, S tto tn a te t In a o o o rd m # . w ith fltte tim tio )# in *Aia and ■; ' . i n .gowrdl* strO m flo w i n m e t : . ., ; ■ o f th o S w w o f th e M eSourl S w r Basin So M gh in the spring .# d e a rly e ra s e r when th e W ttn tS n snow i e w lfin g .* and Sf- decreases M a low flow during th e f a l l and w in ter -when the m elting .snow and the 'rain y seasons: a w # e r * We i l l u s t r a t e t h i s statem ent -with th e dafa. i n fa b le S S S i l l which .seta fo rth th e dissb&rge o f w ater a t s e w r a l gauging sta tio n s, along the 'Missouri end i t s main trihu-tarieso We know t h a t ra in is n e ith e r W lfa h le nor w ell d is trib u te d through th e ra in y season.^ and th a t i n some year# -drouth® appear* ShewieW jr in s o f a r w th e r iv e r s depend upon ra in fl- they are n o t depend*- ' a b le sources o f w ater f o r h ig h ly 'developed i r r ig a ti o n practice® unless la rg e m ounts o f sto rag e a re possible^. Buring ra in le s s and .snowless p a rts o f th e year* th e M ssourl S f e y I 3 Adapted from* Thomthwait e , Moisture Regloni in the United S t a t e s , Geographical Rerlew, January, 19bB* p. 9i*. - 90 and i t s tr ib u t a r ie s depend g r e a tly on underground w ater. In p a rts o f the B asin the ground w ater i s considered inadequate to meet the in c r ea sin g demands placed upon i t , but in oth er parts the supply is ample fo r such in crea sed developm ent. Table XXXVIII D ischarge in Cubic Fbet per Second. Water Year October I 9 I4 O to September 191*1 in the M issouri River System. Gauging S ta tio n M issouri River Main Stem M issouri River Montana M issouri River M issouri River M issouri River M issouri River M issouri River Maximum o .f .s . Minimum o .f .s . Mean o .f.s . 15.100 * 3 !+, 0 0 0 950 3 .2 0 0 I*. 190 Il*, 6 6 0 19,180 19,930 23,650 32.1+70 below Fort Peck Dam, near W illis to n , N. D. a t Yankston, S . D. a t Sioux C ity , Iowa a t Nebraska C ity , Nebr. a t Kansas C ity , Mo. 1 2 , 0 0 0 1 1 2 0 ,0 0 0 1 0 5 ,0 0 0 2 0 6 ,0 0 0 2 , 7 0 0 3 ,9 0 0 i*,380 6 ,3 8 0 Y ellow stone River Basin Y ellow stone River a t Y ellow stone Lake O u tle t, Y ellow stone N ation al Park Y ellow stone River a t B i l l i n g s , Mont. Y ellow stone River near Sid ney, Mont. 2 ,7 5 0 21,800 39,1*00 3 5 0 1 , 7 0 0 921 U.899 1 0 ,0 5 0 P la tte River Basin P la tte River near Odessa, Nebr. P la tte River near Dunoan, Nebr. 82 11*2 9 0 5 1,010 Source* I S Kansas River a t Topeka, Kansas Kansas River a t Bonner S p rin g s, Kansas 3% Kansas River Basin 268 511 4 ,915 5.871 U# S . G eo lo g ica l Survey, Water Supply Paper 926, 191+1. There are oth er f a c t s such as the q u a lity o f water th a t have to be taken in to co n sid era tio n fo r ir r ig a t io n purposes. Many o f the streams o f the M issouri River Basin carry co n sid era b le q u a n titie s o f d is s o lv e d m in era ls, and, in c e r ta in stream s, la r g e amounts o f suspended ' ' s ilt* ' ' - 9 t- ' ' fhs -M nem ls are c h ie fly carbonates' and gtilphete^s w ith b iesr* " boaateo o f eaicium and miaghesitm ^reiOfflinatinge For th i'f reaeon, i t i s necessary th a t drainage aystems on: ir r ig a tio n projects' W adequate enough to dispose o f ©loess' I r r ig a tio n w atera; Otherw iws continued evaporation of the w ater from s o il surfaces w ill deposit Ooncentra-li, one of Suit* ir r ig a b le land* Rlgurep t h a t in d ic a te how many acres could be put under i r r ig a ti o n In the M esouri S iyer S a tin are not re a d ily a v a il able o fhe Ureaj, Ioweyers is- large* Topographic eoaditions w ill perm it i r r ig a tio n o f a s i sable a re a sin c e most of the M sso u rl B iter B asin i s p la in s o But w ater resources e ith e r in th e form of rsdh#- sn o # o r underground w aters &re« i n g # e r d l s In a u ffM lp n t to p e w i t th e ' i r r ig a ti o n of @il th e possibly ir r ig a b le lands® therefore* la n d . la n o t Me lim itin g fac to r-'In i r r ig a ti o n deyelppment .in !the .M a so u rl. Basin*- 'The only fa c to rs th a t r e s t r a i n I t - a r e 'Ooat o f'd w e lo p M h t of' ir r ig a tio n worM$ th e amount -of w ater ayallabie# and preferen ces . f o r o th er se rv ic e s t h a t the- w ater may provides such as navigation^ recreation.-, and so M rfh 6 • OEfiPfEE T I*' THB QGAW I r. The M sso u ri Easiii & o p rin c ip a l goal o f the M issouri E iver Baaih P ro je c t may he Sum* Siarised. in a sh o rt sentences A h e tt e r and more sta b le stan d ard o f liv in g f o r th e people, w ithin th e Basin must he a tta in e d « Qbviously2, previous ste p s have to be worked out in order t o .a tta in th a t goala $n turn* th e Steps to be worked out a re C haracterised by t h e i r d if f e r e n t grade o f importance and the p r i o r it y Which they have in th e o v e rfa ll development=, the degree of importance and p r io r ity a tta c h in g to .d iffe re n t p a rts Cf th e o v e r-a ll development depend la rg e ly upon the philosophy of the in stitu tio n s, in charge o f Carrying out the Missouri 'Bhein P ro je ct and upon th e thought o f the so c ia l groups which, in a moral or economic way.# may support EuCh developmento Ihust; whereas an in s titu tio n o r a so c ia l group may th in k t h a t ir r ig a tio n should be th e major aim* another i n s t i t u t i o n may b e lie v e t h a t flood control should -be th e f i r s t o b jec tiv e , fhe d iv e r s ity o f opinions as to what th e p rin c ip a l o b jective of the M issouri HiVer Basin P ro je c t should be- le a d s us to th e conclusion t h a t tb s b e s t p lan to c arfy out th e p ro je c t i s th a t one which w ill harmonise a l l th e opinions and conserve and use th e w ater resources o f th e Basin i n a harmonic p lan . Thus far- the Missouri Basin P ro je c t i s a compre­ hensive plan sin ce i t provides no t only f o r i r r ig a ti o n b u t fo r flood Control# navigation# power*,-and SO f Ofthd ,fp .I rrig a te . More Banda AS ■Stated above# ir r ig a tio n i s one- -of th e o b jectiv es pursued in the development o f the Missouri EivCf Basin , - 93 * Project* ■ !?huS- f&r* I r r ig a tio n i s n e ith e r th e so le nor the most im portant objective= n e v e rth e le ss^ the importance o f the ir r ig a tio n e n te rp ris e i s se lf-e v id e n t =. The f a c ts t h a t a g ric u ltu re In th e Missouri Hiver Basin I s of unquestionable importance} t h a t development of a sue- ■ c e ssfu l a g ric u ltu re r e t i r e s water} t h a t w ater in th e Basin i s undepend­ ab le u n le s s i t Can be sto red lead to th e conclusion t h a t w ater from r a in , from stream flow s, and from snow should be impounded whenever and wherever it. may be possible= Jhe M issouri S v e r Basin P ro je c t contemplates, ir r ig a tio n o f 5^233,000 new a cres and provision Of supplemental w ater fo r another 1, 914.3*000 acres= The i r r ig a ti o n works are advocated and supported by th e Bureau of Reclamation= Because th e n orthern p ortio n of the. Basin i s the most a rid region, th e land to be brought under i r r ig a tio n I a In th e middle and th e upper p a rts Of the Basin= I t has been, estim ated th a t the ir r ig a tio n work# 'w ill be completed In approxim ately the year 1975 s and th a t the rate , of development w ill take place as follow s 1 19 percent before ■1955« IiB p ercent during th e 1955*1964 p erio d , and 33 percent .a fte r 1965=, T h e 'irrig a tio n asp ect of the M issouri River Basin P ro je c t ha# receiv ed some criticism * The main c ritic ism s are* lack of coordi­ n a tio n In the development of th e project# s t e r i l i s a t i o n o f some land# where ir r ig a tio n has been practiced# and th e vague way in which b e n e fits to be obtained from ir r ig a tio n have been determined=. . These arguments .lack firm grounds since la c k of coordination i s a m atter o f a d m in istratio n th a t ha# no.regard fo r th e objectives and n e c e s s itie s # 9 4 ■** fat ir r ig a tio n s s t e r i l i s a t i o n o f the ir r ig a te # lands cm he cor­ re c te d w ith appropriate drainage m d ©sod knowledge of the p rin c ip le s involved i n the rig h t p ra c tic e s of ir r ig a tio n s As f a r as. th e th ird argument is Cmoemedj in g e n eral, i t i s tru e th a t in most o f the eases p rec ise computation of th e b e n e fits derived from i r r ig a ti o n Ic lackingc» But t h a t happens because of the complexity o f such deter* m ination In I t s e l f 0 indeed». th ere is m im perative n e c e ssity f o r working o u t the appropriate mathematical methods which m f allow a more p rec ise computation o f b e n e fits due to i r r ig a tio n only* Control of Floods* Gontrol of flo o d s Ie another o f th e impor­ tant o b jec tiv e s pursued I n th e development o f th e H e s o u rl S iver Basin Pro j oeto Judged by the amount of money appropriated by Oongress so f a r fo r flood c o n tro l and f o r I r r ig a tio n j, we cannot decide which one o f th ese two o b je c tiv e s i s more Important^ since the funds appropriated f o r i r r ig a ti o n development ■are equal t o th o s e appropriated f o r flood co n tro l objectives* Hegardless of the degree o f Importance t h a t flood co n tro l occupies in the development of th e Missouri Basin Project* the t r u th i s th a t i t is a very im portant objective* flood co n tro l ad one o b jec tiv e o f the p ro je c t i s e n tir e ly j u s t i f i e d i f we r e c a ll th a t flo o d s are as d e stru c tiv e as drouths may be* and th a t they appear o fte n in th e BaSin0 HlOod co n tro l is demanded by th e Army Gorp o f Engineers and will be provided m ainly in the lower portion, o f th e Baala# B ta b llM atjo n p f th e Agr ic u ltu r e 0 S ta b ilis a tio n o f a g ric u ltu re i s one o f the ends pursued b y the development of the Basin P rojects S tab ililg ^ tio n o f a g rie u ltu re w ill be a. lo g ic a l r e s u lt of t h e ir r ig a tio n and o f the flo o d control -prorisioneo S ta b ilisa tio n of a g rlo u ltu ro ;w ill do away W itt some o f .the ^rohleW of ^ t k -AssOB'ri/.Sawin.d # s t# ili% of' a g ric u ltu re has caused m a r trouble® f o r th e S a tin s® faraerse- such ■ a s farm foreclosures* i n s t a b i l i t y o f farm, income* and m igration out o f th e Basin=. .. ■ S ta b ilis a tio n of , Farni, Inoome* S ta b ilis a tio n o f farm income i s another end sought in the development Of the IE ssouri Basin P ro je c t, S ta b ilis a tio n of farm income may depend on many facto rs* such a t s t a b il i s a ti o n 's ? p ric e s end economic c o n d itio n s.in general,.* but'w e ■ wi I X not make, a mistake by considering t h a t s ta b ilita tto n , o f f a m income w ill be, # g n lf ic a n tly ,aw ed b y the: ^ ta M iita tlO B o f agrionl-* turd* fbiSfl s ta b ilis a tio n of' a g ric u ltu re by the M issouri Basin Prov j e s t w ill co n trib u te sig n ific a n tly to s t a b il i s a ti o n of' farm income in th e Bacia9 although i t alone w ill not com pletely s t a b i l i s e farm income in .th e a re a , Other ObjectiyeSo the comprehensive c h a ra c te r of th e IEpsour! B iver B afin P ro je c t includes, other O bjectives besides thc.se o f i r r l » • gOtion5, flood controif and s t a b ilis a tio n o f ag ricu l ture. and farm inoomo, th ese o th er O bjective# a r e n av ig a tio n * power lopmcnt of' m unicipal w ater supplies® W deW " i l l o f these other o b jectiv e# have a d e c isiv e im port i n t h e ' development of th e Basin Project* b u t perhaps most im portant among them l a power developments Power th a t has' been developed in. the Basin thus f a r M s been b oth in s u f f ic ie n t ■■• es smd ©spoasiTQo Ihs oomrenienoe o f power doToXopasat i s naqaestlenable# Pot«jr de-relopznsnt w ill senro the a g ric u ltu re of the Basin by pumping tm te r fo r i r r ig a ti o n purposes and w ill c o n trib u te to fu r-tie r developmeat o f the In au etH ee of the. Basin# Of equal importance i s the f a c t t h a t th e power generated w ill allow lower co sts of irrig a tio n ? elnde i t w ill c a rry a p o rtio n o f the development costs# S atigation, i s another phase in th e development of th e M ssouri Basin Project# Ifarig atien w i l l be provided along 'the M e to u ri M w Stem and i t s major tr ib u ta r ie s p rin c ip a lly in the lower p o rtio n of the M issouri M w r Basin# N avigation development t r i l l be afforded by reg u la tin g high flows, and releasin g stored w ater a t uniform r a te s in order to provide s steady flow fo r irrig a tio n # Ihe tra n s p o rta tio n systems alre ad y e sta b lish e d w ill bo supplemented by navigation# As i n the ease of power devdopm ont, n avigation w ill share a p o rtio n of the development co sts allowing# in consequence,, a lower c o s t fo r the p ro sp ectiv e u se rs of i r r ig a ti o n w aters« lhose eormasnts on navigation a re given according to the provisions made in the o f f i c i a l programs* HOwver6 some arguments questioning the reasons fo r i r r ig a ti o n m y arise# gabion# Some may soy th a t n avigation may s u b tra c t w ater from I r r l ^ Other arguments a re as follows# a s r a ilro a d tra n s p o rta tio n ? tra n s p o rta tio n faro s? i s navigation a s -effective Xs navigation going to e ffe c tiv e ly reduce W ill navigation reduce- the actual e ffic ie n c y o f th e r a ilro a d e n te rp ris e s already estab lish ed ? In ■■■ tsThe Hexionn PrpjeotB of ir r ig a tio n 5* which . used as the t i t l e of this, th e s is i s n o t q u ite c o rre c t^ sine© th is *aae that wo ohly are ooooarhM with the lfrlgatlae wWke alread y aOoomplishei or now. under way in Mexico* Eoweyer* my. in te a tio a i s 1to aiaKe referen ce n o t to ir r ig a tio n w prkt Onlyp hat a l # t o I t # re la te d o r derived phase#' such as power# flood, co n tro ls s ta b ilis a tio n Of. a g ric u ltu re and of farm income# and m iscellaneous o th er objeotiw e'a ■ If. I t f l g a t e # r e i>and.a Irrigation works' w ill occupy my . ' . , a tte n tio n f a r more than w ill the o th er objectives# because these Other objectives h a w l i t t l e Importances and- because irr ig a tio n i@ the e n te rp ris e t h a t th e Federal Government of Mexico should undertake In order to solve o r am elio rate c e rta in a g ric u ltu ra l problems such - m In su fflo ien e y o f crop I and 0. in s t a b il I ty o f a g ric u ltu re and of •' farm income & " I f 51. in the S s s o u r i S w r b d slh P r# e c.% th ere ie room t# doubt whether i r r ig a tio n o r oth er o b je c tiv e s should, have p rio rity # th ere ' e x is ts no Such doubt In Of the rep u b lic 1# arid# and. g & lg -p e rc e n t of th e t o t a l a re a percent l b semi-arid* A lsofi BtexiOO' has no a g ric u ltu ra l surpluses# and i t s a g ric u ltu re has not y e t' // achieved the stag e o f development which the American a g ric u ltu re b # reached^ I r r ig a tio n i s m e o f the e n te rp ris e s which needs to be c a rrie d out i f h o t te r conditions: a re to be achieved, in Mexiow i r r ig a ti o n enterprises in ,Mexico a re divided in to sm all end la rg e p rejeat** ## &*rg* '%**lg*t&oa P W e e te ' - a r e W drtdbG a by the O b w siw a t exelu-8iwly» whereas th e $m&% Ujapjt*gatiOB P ro je c ts are undertaken jo in tly 'by th e Ooyeraadnt and p riv a te en te rp rise^ Tlm second type of ir r ig a tio n rep re se n ts only a very small p a r t o f th e whole program, (approximately I percent ) Q .4 w r y Im portant c h a r a c te r is tic o f th e Small i r r ig a ti o n P ro je c ts i s t h a t investm ents Iaaina a&t boSn repaid* 1 1 '• % # w r^ - &. TLsyfgf? percentage of th e .# in w ^ t- . > - i m w # I# now being f i n # # * % o f f i c W o r e d it Imadwalgr through the STational Sazih o f A g riculture an# h ifesfo o k Seeauee o f clo ser supervision, lower i n t e r e s t rates, end lo n g er te rn s fo r repayments- a la r g e r p a rt o f t h i s investm ent may be rep aid In th e fu tu re e Other -QbjeetiWhiS- I group under tid e, heading power, a g ric u ltu ra l s ta b ilis a tio n s ' .s ta b ilis a tio n 'o f farm Income,, n a v ig a tio n , and go f o rth . Indeed, I should devote ■sp e c ia l sectio n s to each o f them, b u t $ am Inqkiag- tu b s tW lh l- s t h t l # t i # l d&ta. ' % d r.o -e le c tric development m ill take p lace .simultaneously «Sth the- development o f i r r ig a ti o n , Ite importance Cf t h i s o b je c tiv e -is1 unquestionable when th e d e c is iv e . importance of-power ;|n -in d u s tria l development i s recalled ,, and^when i t I S , remembered t h a t l e t i c o inj u s t becoming l& d u striallaed a , ' ■ the long-tim e power program, in c id e n t ■ , , ^ ■ - ' - ' - ■ ' to- i r r ig a ti o n development and erelusive- o f ,ether e le c tr ific a tio n plant,- contemplates the possibility' o f building ,seventeen hydro- ' e le o trio statio n s with s to ta l in stalled capacity, of EQ9 9-G0E> S®< .Many o f the works0 however, t i l l not be b u ilt in the very near future. eontrssMng titb / the Basin Prbj^tits- aatigation %% aot o f great importance in EesiQby With few ex8eptioQ.sp the StreaiW are not suited to R arigationv • -'B taM iitatibn-of f a m iiiom e i@ m& o f the major ends i# dereloplng the M sso n ri Basin* W tbuhtedlys Meideo a ts e seeks , e t a h i l i g a t i m of faW, income, hut- equaily important i t the imptere*' meat ra th e r than the s t A i l l a a t i e n of f a m Intiemes Sinees g e n erally Speahing., It'has. he&a re^y lowo S- 98387 .|a g en eral, t h i s th e s is d eals w ith a g h im ltu .fal problems itobted iti Olimatie en^i.romnent aad oonfraatsd. s im ila rly ■by th e Bid* so u ri -BiYer B asia area and th e BepaTblie o f Mexico o Beoaase andepenlaM Ii t y o f p re c ip ita tio n i s Characteristic ■&£ th e E is so n ri Basin and of Me&ice# irrig a tio n , i s th e .principal to p ic diSoussodA and* eonsequetitly* a l l the C dnsiderations5. Cofeuientss. 'and ■ comparisons # e re centered on irrig a tio n * As was pointed out- in -th e ■ f i r s t two paragraphs o f the f i r s t chapter# th e Basin has sim ila r itie s t o , as w ell a s d iffe re n c e ; from# #%loo* The s im il a r it i e s have- le d t o adoption o f p o lic ie s t h a t a re -e sse n tia lly th e Samoj, end th e ■ d iffe re n c e s c a ll fo r d is s im ila r itie s in, the programs adopted# fheiftimings, t h e i r adm inistration# p r i o r i t y among d iffe re n t uses o f th e water:# #nd the hufean n e c e s s itie s to 'he s a t i s f i e d w i#i the goals; . aohiefeed* This concluding chapter w ill point out some, of the more, n otable d ifferences 'in th e programs adopted-^differendes in -t h e i r .scope and in th e o b jec tiv e s to be a tta in e d by thorn, Miereas Mexico i s developing its . w ater resources c h ie fly fo r i r r ig a ti o n purposes# th e i& ssouri S-Yer Basin emphasises hydro'** e le c t r i c energy# navigation#, municipal water- supply# and O ther pro*je o te in a d d itio n 'i c Ifrig a tlp n * ; - "■"' . i Mbereai the ,Missouri Elver Basinit g e n erally speaking# has rein? '. ' ' ' • *i ■ V1 ,, 1'I' , , • , tiv a ly p le n tif u l irrig ab le- lan d w ith Wtioh to cops w ith i t s dry ' .» 1# tionditioniBj, Mexico's ir r ig a b le lead i s d i s t in c t ly lim ite d , and,, th e re * . f p r e , i t s shortage of: cropland and i t s undependability o f p r e c ip ita tio n ' must be a lle v ia te d , in the long ru n , by re s o rtin g to oth er measures b esid es ir rig a tio n ^ Whereas th e M issouri Biver Basin attem pts to s a t is f y wants above th e b are n e c e s s itie s o f l i f e such as minimum food, clothing* and s h e lte r by expanding ah already ra th e r comfortable liv in g standard# Mexico i s attem pting to s a t is f y subsistence n e c e s s itie s of i t s popu* ' la tio n —foodi c lo th in g , s h e lte r, etc* by developing i t s program Of i r r ig a ti o n , . ; Prom th e l a t t e r conclusion i t would seem to fo llo w ,,th a t# ■since i r r ig a tio n e n te rp ris e s of Mexico a re aimed a t f u l f i l l i n g b asic human n e c e ssitie s# th e m arginal u t i l i t y Of i t s investm ents w ill be , g re a te r than the m arginal u t i l i t y fo r th e investm ents in th e Missouri Basin,= .Tilhereas i r r ig a tio n in th e M issouri Idver Basin embraces pur«= ■ poses Other th an m erely expanding'cropland,, ir r ig a tio n in ' Mexico, although i t a ls o seeks o th er o b je c tiv e s, i s concerned p rin c ip a lly w ith in creasin g th e lim ite d amount of cropland in th e country1= IhereaS the M issouri River Basin P ro je c t loolcs to, th e ,expanding o f in d u s trie s ' in th e area and to th e supporting of already e x is tin g in d u s trie s as w e ll, Mexico, although i t does n o t overlook in d u s tr ia l development, i s concerned p rim arily w ith a tta in in g a secure and vigorous a g ric u ltu re in order to l i f t the d ie t of i t s people to a h e a lth fu l le v e l. LiTEm m m consulted th e Missouri .IaSia 2,«- Clawsoai t e r ion o Atigusti SEQUENCE W EAHtATIOS CE ABIUAL. PmclFITATIOS IS THE WESTEES USlTED STATESe (jQWAL OP IASD ASD PUiLic uTiLiTi Ecosomicsl# ■' &• Croat PlAius- Committee RepO-rt'®- DecSmlOri 19^6« THB W W m OP TgE W AT PLAlHS,. • Coverameat P ria tiu g Q ffioei WasMngtogi I * Cd 3« United S ta te s Department- of A g ricu ltu re » 1918= AOHIOULWBAL STA* TISTICS, government P rin tin g O ffioei Washington.# D* Cd k° United S ta te s Department of A griculture= 19|l » (YEARBOOK OF AGRICULTUm). government P rin tin g Office* Washington.*- D= Co- CLIteTE AND MAN* 9 * Uaited S ta te s Department of A griculture^ , April.# 1 9 0 ° . MISSOURI RIVER BASIN AUHXCULTURAL PROCmM. Covernment p rin tin g O ffioei Washington# D» 0« 6= United S ta te s Department o f A grieultured Bureau of Agrioultural EeottOmieSo September# 1 9 0 « AUHICULIURAL DEVELOPMENT AND PROBLEMS QP TEE MISSOURI VALLEY= . ■ Washington* Dd -Co. ' ■ . : . 7° United S ta te s Department.o f A griculture= 'Bureau.of A g ricu ltu ral Economics= February* 19$CL CHANCES' IN CROP PRODUCTION ANTICIPATED PSQM-PROPOSED IRRIGATION AND RESERVOIR DEVELOPMENT IN THE, MISSOURI W ER ®ASIN,». Mimeograph= Washington* D= C= Bd United S ta te s Department of Agriculture= Bureau of th e Census= 1 9 0 SIXTEENTH CMSUS OF THE UNITED STATES= (POPULATION) = Government P rin tin g Q ffioeii, Washington# D« C# . 9 ° U nited S ta te s Department of Commeroed Bureau of the Census= UNITED STATES CENSUS OP AQRICULWm= Government P rin tin g Office* Washington# D= C= 190« IQ=- United S ta te s Department of th e interior= . Bureau -of Reolamatidnd. 78th Congress* 2nd Setsion= ■ A pril* 1 9 0 « ' CONSERVATION- CONTROL ANDUSE OF WATER RESOURCES= ' (SENATE DOWNEENT NO,=-. I # ) '# Government P rin tin g Office* Washington:#., D= Cs- ' 14% - L ite ra tu re Gpntulted (Gontvd) Ho United S tate# Department o f the I n t e r i o r 0 Bureau of Reolamation. PUTTING TSB MISSOURI TO WORK. . Washington# D. 0. , 12c United -States GeoiogIoalj Sunrey0 191*1* WATER SUPPLY PAPER 926, Ror- Meicl OQ- 1+ Brawn* S o r a o e . m h r u a r y * i p i # . YRRIGATIOU IR M B K im , IU G U m W RELATED RYDH)-ELEGTHC DEVELOPMENTS. Embassy o f th e United S ta te s of M e rio a » Mexiop# D. P* 2. Oomlsion del' Papaloapau. EL PAPALOAPiR» 'GBSA DEL PRESIDENTE aum #, . / S e e re ta ria de Heoursos SidrauIiobWc 1 EexiOo,, D. R. ^ 0 Duran, Ihgeaiero Maroo Antonio. SEVOLUClOK AGRICOLAc T aile res G rafidea de l a HaeiOru Iu XSk1Ja RBL AGRARISMG A LA Mexido, D. R. ' Rinoon, Tomas Cepeda., %<M* LA REPUBLICA M lC A B .. E d ito ria l Progreso# Republioa Ae Cuba*, 85* Mexico, D= Es 5 o S e o re ta ria de Eoonomiac 19W* COMPBHDIG ES TADISTI CO. Dlreolon General de E a ta d is tio a .' Mexico, D. P. 6. Simpson# E yler I , 1937» THE EJIDO3- MEKICOtS B Y OUT* The U niversltY o f North Carolina P re ss. . 7. United S ta te s Department of A griculture* 191*1» (YEARBOOK OP AGRICULTURE). Government P rin tin g Office'# Washington# D. C= 8. Whetten#, Nathan L. 19W » RURAL MERlCO0 The U n iv ersity o f Chicago P re ss, Chicago, I l l i n o i s . CLIMATE ASD ISN0- MONTANA STATE UNIVERSITY LIBRARIES 762 001 4500 O date 9R3R7 L551m c o p .% .