Crop-land Suitability Analysis Using GIS and Remote Sensing in Nyandarua

Show simple item record Kamau, Samuel W. Kuria, David Ndegwa Gachari, Moses Karoki 2015-04-28T09:04:00Z 2015-04-28T09:04:00Z 2015
dc.identifier.issn 2224-3216
dc.identifier.issn 2225-0948 (Online
dc.description.abstract Land suitability analysis is a method of land evaluation, which measures the degree of appropriateness of land for a certain use. The aim of this research was to identify and delineate the land that can best support potatoes, using GIS-based Multi Criteria Evaluation technique and Remote Sensing. The study was carried out in Nyandarua County in Kenya. Agriculture is the mainstay of local economy in the study area, but the production is very low because some of the crops being introduced are not doing well. There is need therefore to identify and delineate suitable areas for growing various crops to achieve maximum potential yield. Three suitability criteria i.e. soil (PH, texture, depth, drainage), climate (rainfall, temperature) and topography were evaluated based on agronomist experts opinions and FAO guideline for rainfed agriculture. An Analytical Hierarchical Process was used to determine relative importance of criteria and the resulting weights were used to construct the suitability maps/layers using GIS software. Finally, land suitability map was generated by overlaying these maps with current land cover map generated from Landsat images through supervised classification. The results of this research revealed that in the study area, 37.6% of the agricultural land is highly suitable for potatoes cultivation, 51.5% is moderately suitable and 10.9% is marginally suitable. The results can be used by the County government to advice the local farmers on the suitable areas for potatoes cultivation. en_US
dc.language.iso en en_US
dc.publisher IISTE en_US
dc.subject Nyandarua. en_US
dc.subject Potatoes cultivation en_US
dc.subject AHP en_US
dc.subject Multi-Criteria Evaluation en_US
dc.subject Remote sensing en_US
dc.subject GIS en_US
dc.subject Land suitability analysis en_US
dc.title Crop-land Suitability Analysis Using GIS and Remote Sensing in Nyandarua en_US
dc.type Article en_US

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