GIS and Agriculture - E

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GIS and Agriculture
GIS and GPS
GIS- A GIS is computer system capable or capturing, storing,
analyzing, and displaying geographically referenced information.
GPS-The Global Positioning System (GPS) is a space-based satellite
navigation system that provides location and time information
anywhere on or near the Earth.
Geographic Information stored in 3 layers :
 Points ( Wells)
 Lines (Stream, Canals, Roads)
 Polygon (Agri. fields, Ponds)
Possible GIS data layers for Agri.
[Canal, River, Lakes, Ground Water
etc.]
Hydrology
Elevation
Soils
[1 to 90 meters above sea level from
south to north-DEM]
[Sandy, Sandy loam, Sandy clay, Loamy
sand etc]
irrigation and drainage,
Infrastructure [small
access road, market centers etc.]
Land Use
[Agricultural, Forest, Fishery]
Soil Texture and Agri. Land use
Source: BARC
Source: Banglapedia
Cropping Pattern by Land types
Map source:
Banglapedia
Data source :CROP DIVERSIFICATION IN
BANGLADESH - M. Enamul Hoque, DAE,
Dhaka
Major Crop Production Area Map
Irrigation Coverage
100%
50%-25%
Below 25%
Major Crop Production
How GIS data can be collected
Primary Data Capture (first-hand collection)
 Digitizing
 GPS collections
 Aerial photographs
 Remote sensing data
How GIS data can be collected
Secondary Sources :
 Administrative Boundaries
 Water bodies
 Roads
 Land use pattern
 Altitude/Contour
Software/Hardware used
GIS and GPS Software used:
•Arc GIS 10
•Arc View GIS 3.2
•Topo 4.0 (Magellan Triton 300 GPS Receiver)
GIS and GPS hardware used
•PC
•GPS Receivers
• Plotter
•A3 Printer
THANK YOU
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