UNVEILING TREASURE OF UNDERWATER
INTRODUCTION
BACKGROUND OF THE PROJECT
WITH THE URBANIZATION AND CIVILIZATION OF HUMAN BEINGS, OVER THE PAST DECADES HAS DRAMATICALLY CHANGE THE ECOSYSTEMS AND BEING
DEVELOPING INNOVATIVE LIFESTYLE DAY BY DAY. AQUACULTURE IS MANS' ATTEMPT, THROUGH INPUT OF LABORS AND ENERGY, TO IMPROVE THE YIELD OF
USEFUL AQUATIC ORGANISMS BY DELIBERATE MANIPULATION OF THEIR RATES OF GROWTH, MORTALITY & REPRODUCTION
MODERN AQUACULTURE CONTINUES TO EVOLVE AS A VITAL SECTOR IN ADDRESSING FOOD SECURITY, CONSERVING MARINE AND COASTAL RESOURCES AND
SUPPORTING ECONOMIC DEVELOPMENT. SUSTAINABLE PRACTICES AND RESPONSIBLE MANAGEMENT ARE CRITICAL TO ENSURE TO LONG-TERM VIABILITY
OF AQUACULTURE INDUSTRY IN FUTURE. FOR THE SUSTAINABLE FUTURE, MANKINDE SHOULD HAVE A STRONG AWARNESS OF PROPER IMPLIMENTATION
AND MANAGEMENT TO UARN RICH PRODUCTIVITY WHILE MAINTAINING ECOLOGICAL BALANCE.
WHY AQUACULTURE
• INCREASING POPULATION
• FAILING AGRICULTURE
 REDUCE DEMAND FOR PROTEIN
 RETURN OF ENERGY INVESTOR
 LESS AREA
• FAILING FISHERY
 LIMITED FISH RESOURCES IN THE SEA
 OVERFISHING
 ENERGY OF THE CATCHING FISH IS HIGHER THAN
CULTURING
• FISH PLAY MAJOR ROLE IN PROTEIN SUPPLY
 EXPORT ORIENTED AQUACULTURE
 DEVELOPMENT OF RESEARCH FOR HANDLING,
BREADING AND CULTURE
 RECREATIONAL FISHERY AND AQUARIA
 IRRIGATION AND HYDROPOWER PROJECTS
SITE SELECTION AND INTRODUCTION
SITE LOCATION -: GAMPAHA DISTRICT
NEGOMBO TOWNSHIP
NEARBY NEGOMBO LAGOON
THE NEGOMBO AREA HAS BEEN HIGHLY URBANIZED AND BEING HIGH
POPULATION WITH THE VALUES OF ECONOMICAL , TRANSPORTATION IN THE
SURROUNDING CONTEXECT.ALTHOUGH THE SELECTED SITE HAS HIGH
POTENTIOAL OF MODER AQUACULTURE INDUSTRY RELATED TO THE NEGOMBO
LAGOON, LAGOOON ECOSYSTEM AND SURROUNDING AREA FACE HIGHLY
ECOSYSTEM DEGRADATION.
THE REASON FOR SELECTING THE SITE IS TO RE-CIRCULATE LAGOON ECOSYSTEM
USING THE SITE POTTENTIOALS WITH SUSTAINABLE PRACTICES AND RESPONSIBLE
MANAGEMENT
HISTORICAL ANALYSIS
(a) THE MMNL IN THE MID-HOLOCENE PERIOD, MARKED WITH A
MARINE REGRESSION, EXPOSING A WIDER COASTAL AREA
(b) WETLAND STARTED TO FORM (C. 7000);
(c) FORMATION OF WETLAND FROM SOUTH TO NORTH AND CLAY
DEPOSITS CONTINUED (C. 6500);
(d) MARSHLAND AND LAGOON STARTED TO FORM AS AN
INTERDEPENDENT ECOLOGICAL SYSTEM (C. 6500–6300);
(e) FORMATION OF MARSHLAND AND LAGOON CONTINUED AT THE
FINAL STAGE, FORMING ONE CONTIGUOUS WETLAND (C. 6000)
(f) THE PRESENT CONDITION
IMPACTS OF URBANIZATION ON THE MUTHURAJAWELA MARSH AND
NEGOMBO LAGOON, SRI LANKA: IMPLICATIONS FOR LANDSCAPE
PLANNING TOWARDS A SUSTAINABLE URBAN WETLAND ECOSYSTEM
BY DARSHAN ATHUKORALA, RONAL C. ESTOQUE, YUJI MURAYAMA AND
BUNKEI MATSUSHITA
ECO SYSTEM ANALYSIS
THE MARSH-LAGOON WETLAND CONSTITUTES AN ECOSYSTEM THAT IS TIDALLY LINKED TO THE MARINE COASTAL WATERS AND WHICH RECEIVES
ESSENTIAL TERRESTRIAL MATERIAL BY WAY OF DANDUGAM OYA.
THE MAIN ENERGY SOURCES ARE THE SUN, CURRENTS, NUTRIENTS (FROM OUTSIDE THE SYSTEM AS WELL AS FROM DECAYING VEGETATION WITHIN THE
SYSTEM). THESE ENERGY SOURCES TOGETHER WITH COMPLEX VEGETATION COMBINE TO SUPPORT A DIVERSITY OF ANIMALS THAT IMPART A
UNIQUENESS TO THE ECOSYSTEM AS A WHOLE.
THE SEAGRASS BED IN NEGOMBO LAGOON CONSTITUTES THE SINGLE MOST IMPORTANT HABITAT TYPE THAT SUPPORTS THE EXCEPTIONAL FISHERY
PRODUCTIVITY OF THE WETLAND.
NEGOMBO
ECONOMICAL AND CULTURAL
CITY
INDIAN OCEAN
SALINITY WATER
SITEBRACKISH WATER
JA ELA , KATUNAYAKE
TRANSPORTATION HUB
DANDYGAM OYA
JA ELA THROUGH
ATHTHANAGALU OYA
FRESH WATER
KELANI RIVER
THROUGH HAMILTON
CANAL
BRACKISH WATER SWAMPS - THE MIX VEGETATION OF MARSH. EXTENSIVE AREAS ARE UNIFORMLY COVERED WITH A COMBINATION OF SEDGES AND GRASSES. THE MOST
OF THE MASH HAS BEEN SUBJECT TO CHANGE BY VARIOUS REASONS
MANGROVE ECOSYSTEMS – IN TOTAL, 29 MANGROVE SPECIES HAVE BEEN RECORDED FROM THE NEGOMBO LAGOON OF WHICH 18 SPECIES ARE TRUE MANGROVES.
MANGROVE FORESTS HAVE BEEN SEVERELY REDUCED BY CUT AND STILL ONLY EXTEND OVER A VERY NARROW INTERTIDAL AREAS ON THE EDGES OF THE LAGOON
AQUATIC PLANTS – LARGE NUMBER OF AQUATIC PLANTS . THEY ARE OCCURRENCE BEING RELATED TO THE LEVEL OF EUTROPHICATION
SEAGRASSES BEDS - TWENTY-TWO PERCENT OF THE NEGOMBO LAGOON 'S 3,200 HA IS GROWN OVER WITH SEAGRASS.
THESE SEA GRASS BEDS ARE VERY SENSITIVE TO TURBIDITY AND CANNOT WITHSTAND EXCESSIVE SILTATION.
THESE GRASSES ARE HIGHLY PRODUCTIVE AND PROVIDE HABITAT FOR A VARIETY OF AQUATIC ORGANISMS, INCLUDING MANY COMMERCIALLY IMPORTANT SPECIES.
•
“THE SEA GRASS BEDS IN THE NEGOMBO LAGOON CONSTITUTE THE SINGLE MOST IMPORTANT HABITAT TYPE SUPPORTING THE EXCEPTIONALLY HIGH FISH
PRODUCTION OF 150 KG HA-1 YR-1 (JAYAKODY,).
• SEA GRASSES WERE HIGHLY ABUNDANT IN THE NORTHERN PART OF THE LAGOON, WHERE A THICK MANGROVES COVER IS PRESENT COMPARED TO THE OTHER
AREAS OF THE LAGOON.
• DECLINE OF STANDING CROP OF SEAGRASS ECOSYSTEM IN NORTHERN, EASTERN AND WESTERN PARTS OF THE LAGOON IS ESTIMATED AS 96 % AND IN
BASSIYAWATTA LOCATED IN WESTERN SIDE INDICATES 50 % OF TOTAL BIOMASS REDUCTION, WHILE 62 % AND 47 % INCREASE IN TOTAL BIOMASS HAVE BEEN
REPORTED IN KATUNAYAKE, AND LIYANAGEMULLA LOCATED IN EASTERN BOARDER RESPECTIVELY (PAHALAWATTAARACHCHI) “
• DEGRADATION RATE OF THESE SEA GRASS ARE VERY HIGH DUE TO LOW WATER QUALITY, HIGH SEDIMENTATION, WATER POLLUTION, EUTROPHICATION AND HUMAN
ACTIVITIES LIKE ANCHORING, MOTOR BOAT RIDES
REFERENCES - TEMPLATE FOR SUBMISSION OF SCIENTIFIC INFORMATION TO DESCRIBE AREAS MEETING SCIENTIFIC CRITERIA FOR ECOLOGICALLY OR BIOLOGICALLY
SIGNIFICANT MARINE AREAS BY H,B, JAYASIRI, PRINCIPAL SCIENTIST, NARA
DELTA ECOSYSTEM –DELTA ZONE OF THE MARSH FORMS THE TRANSITION BETWEEN THE MARSH PROPER AND THE LAGOON. IT IS CHARACTERIZED BY A BRACKISH WATER
FLORA AND SOME MANGROVE FORESTS. THIS ZONE, WHICH IS ECOLOGICALLY AS WELL AS ECONOMICALLY IMPORTANT MAINTAINS A HIGH PRODUCTIVITY, ACTS AS A SILT
TRAP, PROVIDES SPAWNING, NURSING AND FEEDING GROUNDS FOR A VARIETY OF ECONOMICALLY IMPORTANT FISH, SHRIMP AND OTHER SPECIES, SUPPLIES COASTAL
WATER WITH NUTRIENTS AND PROVIDES A WILDLIFE HABITAT FOR NUMBER OF RESIDENTIAL AND MIGRATORY BIRD SPECIES.
REFERENCES – ENVIRONMENTAL PROFILE OF MUTHURAJAWELA AND NEGOMBO LAGOON BY GREATER COLOMBO ECONOMIC COMMISSION , EUROCONSULT, THE
NETHERLANDS
Floral inventory
Seagrasses
Spoon grass – Halophila ovalis
Ruppia maritima
Halodule uninervis
Potomogeton pectinuatus
Mangroves
Aegiceras corniculatum – small tree
Avicennia marina – tree
Bruguiera gymnorhyza –tree
B.Sexangula –small tree
Ceriops tagal – tree
Excoecaria agallocha – small tree
Lumnitzera racemose
Rhizophora apiculate
R.Mucronata
Kirala - Sonneratia caseolaris
Acanthus ilicifolius – flowering shrub
Mash vegetation
Wal atha– Annona glabra
Gon kaduru - Cerbera odollam
Bowitiya - osbeckia aspera
Heen Dan - syzygiym caryophylatum
Domba - Calophyllum inophyllum
Aquatic plants
water hyacinth - Eichhornia crassipe
Salvinia
Grasses
panicum repens
Sedges
carex indica
Fauna Inventory
Residential Birds
Indian shag – phalacrocrax fascicollis
Purple heron - Ardea purpurea
Little egret sp. - Egretta garzetta
night heron - Nycticorax sp
Migrant Birds
38 migrant bird species can be identified around the area for
• Breeding
• Non-Breeding
• Spending climatic conditions
Ducks and Wagtails are main migrant groups
Great cormorant - Phalacrocorax carbo
Goliath heron - Ardea goliath
Mallay bittern - Gorsachius m.melanolophus
Booted eagle - Heiraaetus pennantus
Fish
Rich in finfish and shellfish ( prawn, crabs, mollusks )
in the zone of MMNL – 140 species of fish
Mollusks
The study on the edible oyster population, Crassostrea
cucullata in the Negombo Lagoon (Pinto and Wignaraja,
1980)
Butterflies
Dragonflies
Reptiles
Amphibians
Zooplanktons
Analysis about community
•
According to the government data, in the years 2007-2008, the total numbers of fishery households and
fishing population are 8,465 and 35,140, respectively in the covered 13 fishery inspection areas. Out of
these, the number of those who are engaged in the lagoon and other fisheries is 3,392, accounting for
around 31% of the total fishing population.
•
Multi species and multi-gear fisheries which are based on small-scale operations can be commonly
observed in Negombo Lagoon. Such diverse fisheries take place all year round using a total of 22
methods, of which 13 are entirely traditional. namely; caste net, stake net (kattudel), katta, brush pile,
kadippu del, angling, crab pots, scoop nets, karakgediya, irati, ja – kotu, kemana, and dip nets. The other
methods are; gokran dela, hand trawling net, gill net, drift net, polychete worm digging, cross net, drift
net, trammel net, and gawana dela. (Jayakody, 1994).
•
The annual fish catch from the lagoon, as exemplified by the total catch in 2001 was mainly from the
trammel nets or disco nets (466 t), stake seine nets or kattudel (215 t) and brush piles or athu kotu (204t).
•
Fingerlings of Groupers–kossas (Epinephelus sp. and Cephalopholis sp.) are collected from the brush piles
and sold to collecting centers, from where they are exported for fattening and for sale in South-East Asian
restaurants. Some centers have exported 12–15 million fish fingerlings during the grouper season, after
rains (NARA 1988). In addition to food fish, 63–251 ornamental fish are also caught from a Brush pile per
month (Anis et al. 2015). Thus, about 8000 people depend on the fishery in the lagoon for their living.
•
The use of some fishing gear such as the drag net, push net and trawl on sea grass beds cause much harm
to the sea grass beds.
There are several places around the estuary (particularly Pitipana and Duwa area) used for processing fish
for ‘dry’ fish production and waste from this is dumped into the estuary, polluting it.
•
References -: The Sunday times by Leonard Pinto
- prospects and challenges of kattudel fishery : an ancient fishing technique in sir Lanka by Dilanthi koralagama, pubudu
koralagama
SWOT ANALYSIS
STRENGTH
• HIGH SENSITIVE ECOSYSTEM
• GROWTH RATE OF UNIQUE VEGETATION IS HIGH (MANGROVE AND
THRONE PLANTS )
• BEING A KEY BREEDING GROUND FOR ECONOMICAL VALUABLE PRODUCTS
• TOURISM BASED HOTELS AND RESTAURANTS ARE ALREADY BUILDUP IN
THE SITE
WEAKNESS
• ECOLOGICAL CYCLES, FLOWS ARE COLLAPSED DUE TO HUMAN ACTIVITIES
AND POLLUTION
• LOSS OF FOCUS TO INLAND FISHING FROM SURROUNDING COMMUNITY
• EROSION SOILS AND SAND DEPOSITION
OPPORTUNITIES
• SITE IS LOCATED MIDDLE OF NEGOMBO WHICH ECONOMIC CITY AND
KATUNAYAKE TRANSPORTATION HUB
• AQUACULTURE DEVELOPMENT AND TRAINING CENTER ACT AS A HUGE
POTENTIAL TO THE SITE
• HIGH DEMAND OF INLAND AQUA PRODUCTS
• COMMUNITY UPLIFTING POTENTIALS ARE SITE ITSELF
THREATS
• DEGRADATION OF WATER QUALITY OF LAGOON
• ECOLOGICAL DEGRADATION OF LAGOON ECOSYSTEM
• COMMUNITY ENGAGED WITH SEA FOOD INDUSTRY, LEAVING INLAND
FISHING
• ECOLOGICAL IMPACT TO MUTHURAJAWELA MARSH THROUGH LAGOON
VISION STATEMENT
TO INITIATE SUSTAINABLE, RESILIENT AND CONNECTED LANDSCAPE SYSTEMS
THAT FOSTERS ECONOMIC GROWTH WHILE PROMOTING THE RESPONSIBLE
USE OF THE PRESERVATION OF NATURAL RESOURCES AND HONORING
SPIRITUAL AND CULTURAL HERITAGE THROUGH INTERDEPENDENT
RESILIENCE, ECO-ACTIVISM, RESPONSIBLE TRAVEL AND SUSTAINABLE LAND
USE PRACTICES, ENHANCING WELLBEING, LIVELIHOODS AND OVERALL
QUALITY OF LIFE VIA THE DEVELOPMENT OF CONNECTIVITY AND BGGE
NETWORK WITHIN A LEGISLATIVE FRAMEWORK.
STRATEGIES
 EXPLORING NEW VENTURES OF TRADITIONAL LIVELIHOODS THROUGH
ALTERNATIVE TOURISM (DESTINATION) AND IDENTIFY, CLASSIFY, SUPPORT
SUSTAINABLE ECONOMOIC ACTIVITIES
 GIVING USER VALUE AS WELL AS EXISTENCE VALUE TO NEGLECTED
POTENTIAL SPACES WHILE PROVIDING OPPORTUNITIES FOR RESEARCH,
RECREATION AND ALTERNATIVE TOURISM. (RESORT LIFE, MEDICAL)
PROJECT
REVITALIZATION OF LAGOON ECOSYSTEM THROUGH KNOWLEDGABLE FUTURE
LANDSCAPE TYPOLOGY OF THE PROJECT
PROMOTING AQUA-CULTURE PRACTICING LANDSCAPE IN COASTAL AREA AND REVITALIZATION ABANDON LANDSCAPE OPPORTUNITIES BY IDENTIFYING
UNIQUE ECOLOGICAL ECONOMOCAL VALUE.
PROJECT DETAILS
CLIENT -: NATIONAL AQUACULTURE DEVELOPMENT AUTHORITY (NAQDA)
BENIFISHERY GROUP -: SURROUNDING COMMUNITY
EDUCATION SEEKERS, RESEARCHERS
MANAGEMENT -: AQUACULTURE TRAINING CENTER-PITIPANA
USERS -
PRIMARY USER – LAGOON ECOSYSTEM
PRIMARY USER - VISITORS - RESEARCHERS, UNIVERSITY STUDENTS, SCHOOL CHILDREN, LOCAL & FOREGIN VISITORS,
SECONDARY USER - COMMUNITY – TOURIST HOTELS AND HOUSE RENTERS, FISHING COMMUNITY, WORKERS IN AQUA-CULTURE CENTER
INDUSTRY – PRODUCT BUYEERS, INLAD FISHING INDUSTRY, TOURISM INDUSTRY
PROJECT OBJECTIVES
• REVITALIZATION THE NEGLECTED POTENTIAL SPACES WHILE GIVING USER VALUE
• STRENGTHEN THE AWARNESS TO EXPLORE NEW VENTURES OF TRADITIONAL LIVELIHOOD
• CREATING OPPORTUNITY FOR RESEARCH EDUCATION WITH RESPECT TO ALTERNATIVE TOURISM
• CONNECTING THE LANDSCAPE THROUGH SUSTAINABLE LAND USE PRACTICES TOWARDS DEVELOPMENT OF BGGE GROWTH
THEORITICAL APPROACH
ECOLOGICAL SUCCESSION THEORY
AN ECOSYSTEM DEVELOPS AND STABILIZES THROUGH THE PROCESS OF ECOLOGICAL SUCCESSION. IT IS A PROCESS OF CHANGE
IN THE SPECIES STRUCTURE OF AN ECOLOGICAL COMMUNITY OVER TIME FROM A PIONEER COMMUNITY THAT SETS FIRST IN A
BARREN LAND TO THE CLIMAX COMMUNITY
•NUDATION: DEVELOPMENT OF BARE AREA OR NUDATION WITHOUT ANY FORM OF LIFE.
•INVASION: IT IS THE SUCCESSFUL ESTABLISHMENT OF A SPECIES IN A BARREN AREA.
•COMPETITION AND COACTION: AFTER AGGREGATION, THE INDIVIDUALS OF A SPECIES COMPETE WITH OTHER ORGANISMS FOR
FOOD, SPACE AND OTHER RESOURCES
THE ECOLOGICAL SUCCESSION HAS THE FOLLOWING CHARACTERISTICS:
1. IT IS A SYSTEMATIC PROCESS.
2. IT INVOLVES CHANGES IN SPECIES STRUCTURE AND ALSO INCREASES THE DIVERSITY OF SPECIES.
3. THE SUCCESSION TAKES PLACE DUE TO CHANGES IN THE PHYSICAL ENVIRONMENT AND POPULATION OF THE SPECIES.
4. THE CHANGES THAT OCCUR ARE DIRECTIONAL AND TAKE PLACE AS A FUNCTION OF TIME.
5. SUCCESSION WORKS IN A STABILIZED ECOSYSTEM.
6. THE POPULATION OF DECOMPOSER COMPONENTS BECOMES SIGNIFICANT.
7. THE SIMPLE FOOD CHAINS WILL BE REPLACED BY COMPLEX FOOD CHAINS.
ATTENTION RESTORATION THEORY
ATTENTION RESTORATION THEORY (ART) (KAPLAN, 1989, 1995) SUGGESTS THAT MENTAL FATIGUE AND CONCENTRATION CAN BE
IMPROVED BY TIME SPENT IN, OR LOOKING AT NATURE. THE EXPOSURE TO THE NATURE IS NOT ONLY ENJOYABLE, BUT ALSO HELP
US IMPROVE OUR FOCUS AND ABILITY TO CONCENTRATE.
1.FASCINATION: THE ENVIRONMENT MUST EVOKE A SENSE OF AWE AND WONDER. THIS DIRECTS THE PERSON’S ATTENTION TO THE
ENVIRONMENT.
2.EXTENT: THE SENSATION OF TRAVELLING THROUGH THE ENVIRONMENT, BEING ABLE TO FEEL CONNECTED TO ELEMENTS IN THE
ENVIRONMENT
3.BEING AWAY: THE ENVIRONMENT MUST ALLOW THE PERSON TO FEEL AS THOUGH THEY ARE FAR AWAY FROM THEIR WORRIES
ZONE
SPACE
DESCRIPTION
FUNCTION
RESTORE THE SEAGRASS BEDS IN THE 30M RANGE OF
THE LAGOON FROM THE LAND MARGINED
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ENVIRONMENTAL RESTORATION LAYER
1. FUTURE CHAPTER
(ALL ARE IN ONE CHAPTER AND
IT CAN BE INFLUENCE OTHER
CHAPTERS IN THE FUTURE)
SEAGRASS BEDS
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BEING A HABITAT FOR MANY AQUA SPECIES
BEING A BOTTOM OF THE FOOD CHAIN AND RICH IN
PRODUCTIVITY
STABILIZED COASTAL SEDIMENTS
CREATE A BUFFER ZONE AND REDUCE EROSION
OYSTER REEF
8M WIDTH OYSTER REEF FLOATING ON THE LAGOON
WATER.
REEF MADE BY THE FUZZY ROPES FIXED WITH WOODEN
PILES
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CLEARING LAGOON WATER
HABITAT FOR HIGH ECONOMIC PRODUCTIVITY
SUPPORTIVE SYSTEM WITH RELATION TO THE OTHER SYSTEM
PROVIDE FOOD AND REFUGE
REDUCE EROSION
SUCCEEDED FOREST
COVER
PROPOSED DIFFERENT PLANT SPECIES OF MANGROVES,
MASH VEGETATION, AND THRONE PLANTS
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REHABILITATE THE LAGOON MASH ECOSYSTEM AND RESTORE
THE ENVIRONMENT
GIVING HABITATS FOR SPECIES RELATED TO THE ECOSYSTEM (
DRAGONFLIES, BUTTERFLIES, BIRDS ETC. )
•
HUMAN INVOLVEMENT
1. PAST CHAPTER
(FUTURE CHAPTER CAN BE
INFLUENCED BY PAST CHAPTER)
NO DESIGN SPACES
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•
ECO PARKING AND
CANOPY ENTRANCE
CAR PARKING UNDER THE TREE
(11 PARKING LOTS FOR CARS AND FREE SPACE FOR OTHER
VEHICLES)
•
•
ONLY AREA FOR COMMUNITY ENGAGEMENT WITH
REHABILITATIVE ECOSYSTEM AND PRACTICE FISHING
ACTIVITIES
FOR VISITORS – ON THE WAY THEY CAN SEE THE FISHING
PRACTICES IN REALITY.
AFTER PARKING ENTER TO KAYAK BOAT OR MOTOR BOAT,
CREATE A WATER ENTRANCE ACCORDING TO THE PRINCIPLE
OF FASCINATION ( WONDER, CURIOSITY, SURPRISE )
GIVE THE NATURAL WELCOME AND EXPERIENCE THE WATER
QUALITY AFTER REVITALIZATION OF LAGOON
2. FUTURE CHAPTER
3. EDUCATIONAL ZONE
(COMPREHENDING ALL
CHAPTERS)
DOUBLE WALK
WALK THROUGH FUTURE AND PRESENT CHAPTERS ( BETWEEN
AQUA CULTURE POND AND REHABILITATE LAGOON )
( USING PRINCIPLE OF FASCINATION )
2.5M WIDTH EARTHEN PATHWAY
•
AT THE VERY 1ST TIME VISITOR CAN SEE THE CULTURAL
POND AND NATURAL LAGOON WATERBODY IN ONE
FRAME.
GLASS WALK
WHILE TRAVELING THE SUCCEEDED ENVIRONMENT, BEING ABLE
TO CONNECTED TO ELEMENTS IN ENVIRONMENT
( USING PRINCIPLE OF EXTENT )
2m WIDTH 50m HEIGHT GLASS FLOOR DECK
•
VISITORS CAN EXPERIENCE THE SHALLOW SEA GRASS
BEDS AND AQUATIC FAUNA THROUGH THE CLEAR WATER
WITHOUT WATER TOUCHING
WATER FRONT
KAYAK BOAT RIDES
OBSERVATION PLATFORM PROVIDE ON THE OYSTER REEF
•
3M*3M TIMBER PLATFORM
•
2M HEIGHT
•
MAXIMUM 5 PEOPLE ALLOW AT ONCE
WALK THROUGH UNIQUE MANGROVE, THRONE AND COASTAL
FOREST CHARACTERS IN SUCCEEDED FOREST COVER
( USING PRINCIPLE OF EXTENT )
•
WHILE BOAT RIDING USER CAN EXPERIENCE THE WATER
ECOSYSTEM WITH SEAGRASS AND ASSOCIATED AQUA
FAUNAS.
•
OYSTER PRODUCTIVITY – ECONOMICAL PRODUCTIVITY
FOR COMMUNITY AND NAQDA
• EXPERIENCE
UNIQUE
AND RELATED
PLATFORMVARIETY
ON THE OF
OYSTER
REEFFLORA
– OBSERVING
FAUNA
(BIRDS, INSECTS…)
SURROUNDING
ISLANDS AND
AND CREATE
BIRDS USER AWARENESS
ABOUT ENVIRONMENT
OBSERVATION TOWER
3M HEIGHT TIMBER TOWER
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•
EXPERIENCE LEVEL DIFFERENCES
BIRD OBSERVATION
RESEARCH
ENCAMPMENT
EDUCATIONAL ACCOMMODATION
TEMPORARY FIXED CAMPING TENTS
MAXIMUM 10 TENS ALLOW TO CAMP AT ONCE
( USING PRINCIPLE OF COMPATIBILITY )
•
EXPERIENCING AND RESEARCHING DAY AND NIGHT
CHANGERS IN LANDSCAPE
HABITAT LAKE
MODEL OF THE HABITAT LAKE
DIVING FACILITIES WITH DEPTH VARIATIONS
( USING PRINCIPLE OF EXTENT AND COMPATIBILITY )
•
THE EXPERIENCE THE DEEP UNDER WATER ECOSYSTEM
WITH DEPTH VARIATIONS
ECO EXPLORATION
EXHIBITION AREA
ORNAMENTAL FISH PONDS
AQUA FOOD ZONE – 15M LONG
•
EXHIBITION PLATFORMS REALIZE HOW THIS
RESTORATION HAPPENED AND EDUCATING
USER VALUE TO EXISTING ORNAMENTAL FISH POND
INLAND AQUA PRODUCTIVITY FOR FOOD PRODUCTION
FOREST WALK
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•
Design brief
1. Past chapter
No design spaces
Only area for community engagement with rehabilitative ecosystem and practice fishing activities
For visitors – on the way they can see the fishing practices in actually
2. Eco parking – car parking under the tree
After parking enter to kayak boat or motor boat
create a water entrance according to the principle of fascination ( wonder, curiosity, surprise )
3. Canopy entrance- give the natural welcome and experience the water quality after rehabilitation of lagoon
Future chapter
4. Double walk – walk through future and present ( between aqua culture pond and rehabilitate lagoon )
( using principle of fascination )
5. Glass walk – while traveling the environment, being able to connected to elements in environment
( using principle of extent )
Visitors can experience the shallow sea grass beds and aquatic fauna through the clear water
6. Water front – kayak boat rides , diving with shallow water and experience underwater with sea grass
in the oyster reef, there are some observation platforms with reef for observing birds and surrounding islands
Education zone
7. Forest walk –experiencing variation of coastal aqua and throne flora and fauna
( using principle of extent )
8. Observation tower
9. Research encampment – camping site for experience, educate and research day and night with the ecosystem
( using principle of compatibility )
10. Inland diving pond – the experience the deep under water ecosystem with depth variations
( using principle of extent and compatibility )
11. Eco exploration – realizing the future chapter
exhibition zone, tidal pod, seafood zone
PLANTING CONCEPT
ACCORDING TO THE MAIN CONCEPT “ UNVEILING THE PRODUCTIVE HISTORY TO CYCLIC PROCESS” , PLANTS PERFORM AS VARIOUS CHARACTERISTICS WITH
THE BALANCE OF AQUA, SEMI AQUA AND NON AQUA ENVIRONMENTS. THESE CHARACTERISTICS GIVE VERITY TO ECOSYSTEM.
PLANTS,
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AS A HABITAT
AS OUTDOOR CEILING EFFECT
AS USER COMFORTABILITY
AS A BUFFER
MAKE CURIOSITY, ATTRACTION AS WELL AS HIDE
AS FRAME AND MASK VIEWS
AS PURPOSE TO STRENGTHEN THE KNOWLEDGE
CONCEPT – “PLANTS AS BEING A VERITY TO CYCLIC PROCESS”
GENERAL NAME
SCIENTIFIC NAME
DESCRIPTION
RIVER MANGROVE
Aegiceras corniculatum
SMALL TREE 6M
MARSH PLANT FOR THE EDGES OF PONDS FOR ITS ATTRACTIVE DROPSHAPED LEAVES AND SWEETLY FRAGRANT FLOWERS.
MANDA GAS
Avicennia marina
MAX 30M HEIGHT SMOOTH, OR SLIGHTLY FLAKY GREY TRUNK.
MAL KADOL
Bruguiera gymnorhyza
MAX 20M HEIGHT
DENSELY SPREADING BRANCHES, PEDICELS AND FLOWERS REDDISH
COLOUR
RATHUGAS
Ceriops tagal
SHRUB OR SMALL TREE , HEIGHT BETWEEN 3-5M TREE CONICAL IN SHAPE,
CYLINDRICAL LONG HANGING FRUIT
TELAKIRIYA
Excoecaria agallocha
SHRUB OR TREE, HEIGHT UP TO 20M DIOECIOUS
BLACK MANGROVE
Rhizophora apiculate
MUCH-BRANCHED TREE UP TO 10 M
KIRALA
Sonneratia caseolaris
MAX 20M HEIGHT , MAXIMUM DIAMETER OF 50 CM, EDIBLE FRUIT
WAL ATHA
Annona glabra
HEIGHT MAX 9M AND SPREAD MAX 6M, EDIBLE FRUIT
GON KADURU
Cerbera odollam
HEIGHT 4 TO 6M AND SPREAD 4 TO 5M
MUDU KADURU / BALU ATA
Ochrosia oppositifolia
UP TO 25M TALL, WITH A TRUNK DIAMETER OF UP TO 50CM
HEEN DAN
Syzygiym caryophylatum
SMALL EVERGREEN TREE 3-5 M TALL
DOMBA
Calophyllum inophyllum
AVERAGES 8–20 M (25–65 FT) IN HEIGHT WITH A BROAD SPREADING
CROWN OF IRREGULAR BRANCHES
MANGROVE
Mash vegetation
GENERAL NAME
SCIENTIFIC NAME
DESCRIPTION
WAL ATHA
Annona glabra
HEIGHT MAX 9M AND SPREAD MAX 6M, EDIBLE FRUIT
GON KADURU
Cerbera odollam
HEIGHT 4 TO 6M AND SPREAD 4 TO 5M
MUDU KADURU / BALU ATA
Ochrosia oppositifolia
UP TO 25M TALL, WITH A TRUNK DIAMETER OF UP TO 50CM
HEEN DAN
Syzygiym caryophylatum
SMALL EVERGREEN TREE 3-5 M TALL
DOMBA
Calophyllum inophyllum
AVERAGES 8–20 M (25–65 FT) IN HEIGHT WITH A BROAD SPREADING CROWN
OF IRREGULAR BRANCHES
BOWITIYA
Osbeckia aspera
ACCENT QUALITY GAINED THROUGH THE FLOWERING
KATU IKIRI
Acanthus ilicifolius
USUALLY FLOWERS AND FRUITS AS A SHRUB ABOUT 1-1.5 M TALL
INDIAN SEDGES
Carex indica
HERBS; RHIZOME THICK, TUFTED, WOODY; CULMS 40-100 × 0.2-0.25 CM
ETORA
Panicum repens
GRASS WHICH CAN FORM EXTENSIVE DOMINANT SWARDS WITH FOLIAGE
AND INFLORESCENCES UP TO 100 CM HIGH, THOUGH MORE COMMONLY TO
ABOUT 50 CM
PIGEON BERRY
Duranta erecta
IT CAN GROW TO 6 M (20 FT) TALL AND CAN SPREAD TO AN EQUAL WIDTH
Canavalia rosea
PERENNIAL HERB WITH A TRAILING OR CLIMBING STEM GROWING 2 -10 M LONG AND
BECOMING SOMEWHAT WOODY WITH AGE
Salicornia brachiata
GROW IN VARIOUS ZONES OF INTERTIDAL SALT MARSH AND BRACKISH ECOSYSTEM
MASH VEGETATION
BUSHES AND SMALL PLANTS
BUSHES AND SMALL PLANTS
Suaeda monoica
GROW IN COASTAL SALT FLATS AND TIDAL WETLANDS
Carissa grandiflora
A TYPICAL FRUIT IS APPROXIMATELY AN INCH IN DIAMETER AND ONE AND A HALF INCHES LONG
SPOON GRASS
Halophila ovalis
COMES IN A WIDE RANGE OF SIZES (0.5-1.5CM WIDE AND 0.5-2.5CM LONG) AND SHAPES FROM OVAL
BEAKED TASSEL WEED
Ruppia maritima
VERY SLENDER STEMS, UP TO 0.4 M LONG, SPARINGLY TO RICHLY BRANCHED
Halodule uninervis
UP TO 15 CENTIMETERS LONG AND USUALLY ROUGHLY A MILLIMETER WIDE, THOUGH LEAF WIDTH IS
VARIABLE AND CAN BE UP TO 7 MILLIMETERS
SAGO PONDWEED
Potomogeton pectinuatus
STEMS TO 3M LONG. LEAVES ALTERNATING UP THE STEMS, WITH A SHEATH AT THE BASE, GRASS-LIKE
BIM THAMBARU
Ipomea pes-capre
YESTERDAY TODAY AND TOMORROW
Bnmfelsia americana
2M, USES: HEDGES; ORNAMENTAL. LEAVES: DARK GREEN/ ACUTE TO ROUNDED APEX. FRUITS IN SRI
LANKA, TRUNK: B-LIGHT GREY. FLOWERS: BLUE-LAVENDER TO WHITE WHEN FADING, FRAGRANT.
FRUITS: YELLOWISH BERRY; RARELY
KORAKAHA
Memecylon umbellatum
A SMALL EVERGREEN SHRUB OR TREE WHICH GROWS UP TO 8–14 M TALL HAVING YOUNG TREE
BRANCHES AND BEARS NUMEROUS UMBELLATE CYMES
MAILA
bauhinia racemosa
MEDICINAL SPECIES OF FLOWERING SHRUB WITH RELIGIOUS SIGNIFICANCE. IT IS A SMALL CROOKED
TREE WITH DROOPING BRANCHES THAT GROWS 3–5 M
HEEN KADOL
Aegiceras corniculatum
A SHORT TREE OR SHRUB THAT GROWS TO 6 M TALL
KADOL
Rhizophora apiculate
ON AVERAGE A MATURE R. APICULATE SHRUB REACHES BETWEEN 5 – 8 M IN HEIGHT ALTHOUGH IT
HAS THE POTENTIAL TO REACH UP TO 30 – 40 M
HEEN KARAMBA
SEAGRASS
PLANT AS A BUFFER