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Issue 30: Precision Agriculture

Malaysia: Agro-Ecological Zoning for South West Selangor, using Remote Sensing and Geographic Inform

MACRES has conducted a study on agro-ecological zoning of South West Selangor using the integration of remote sensing and Geogrphic Information System (GIS). Five parameters - land cover/use, landform, terrain, soil and climate were used for agro-suitability assessment adopting the procedure sin the UN- Food and Agriculture Organisation (FAO) document entitled 'Agro-ecological Zoning'. The land cover/use, landform and soil layers were generated from visual interpretation of satellite data accompanied by intensive ground verifications. The terrain layer was produced from a Digital Elevation model (DEM) derived from digitized contour lines. Two climatic layers-duration of dry season and annual rainfall distribution were generated through interpolation of point files digitized in the GIS. Crop requirements data were taken from the FAO guideline with modifications to suit the Malaysian environment setting. Four crops - rubber, oil palm, cocoa and paddy were assessed because of their socio-economic significance to the state of Selangor, Malaysia. The agro-ecological zone (AEZ) map was produced using overlay analysis technique in the GIS. The agro-land suitability map was generated by matching the crop requirements with the land characteristics in each AEZ unit through cross-tabulation method, giving due considerations to the present agricultural land use. Contact: K. F. Loh, M. Halid, N. Surip and S. A. Hashim, Malaysian Centre For Remote Sensing (MACRES), 5th Floor, City Square Center, Jalan Tun Razak, 50400 Kuala Lumpur Tel: 603-2645640 Fax: 603-264. E-mail : lpa@macres.gov.my

23 December 2005

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