Land Suitability Analysis

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The Land and Water Development Division of FAO has made considerable progress in the last three decades in putting together, applying and disseminating the tools necessary to address assessment and utilization of the land resources potentials for better food and agriculture. In order to determine the most desirable direction for future development, suitability of the land for various uses should be carefully studied with the aim of directing growth to the most appropriate sites. Establishing appropriate suitability indices is the key factor in suitability analysis. Careful planning of the use of land resources is based on land evaluation, which is the process of assessing the suitability of land for alternative land uses (Fresco et al., 1989).…show more content…
Land evaluation is concerned with “the process of land performance when used for specified purposes” (FAO, 1985). It involves the execution and interpretation of basic surveys of climate, soils, vegetation and other aspects of land in terms of the requirements of alternative forms of land use. Land evaluation is also part of the process of land use planning. The main objective of the land evaluation is the prediction of the inherent capacity of a land unit to support specific land use for a long period of time without deterioration, in order to minimize the socio-economic and environmental costs (De la Rosa, 2000). Finding suitable land area for agricultural crops is the need of the present day agricultural…show more content…
This work is also important to help the planner in land use planning effectively. Land suitability evaluation is a procedure of assessing the capability of land for different kinds of land use (Dent and Young, 1981). A huge data comes from different sources such as soil, topography, land cover, climate conditions and interrelationship between soil, landform and vegetation have been analyzed to evaluate land suitability (Allen et al., 1995). On the other hand, the results of assessment are not accurate and efficient on account of integrating multiple variables unless a GIS is used. Planning and decision-making tasks have widely applied GIS and recognized it as the most powerful tool capable of providing reliable information (Michalak, 1993). Consequently, GIS has found wide application in evaluation of land

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