An Application of Linear Programming and Geographic Information Systems: Cropland Allocation in Antigua

Abstract

This paper is focused on the application of linear programming (LP) in combination with a geographic information system (GIS) in planning agricultural land-use strategies. One of the essential inputs for planning any agricultural land-use strategy is a knowledge of the natural resources. This is even more critical in small countries such as those in the Eastern Caribbean, where land-area limitations dictate a greater need for careful assessment and management of these resources. The first step of the proposed methodology is to obtain an assessment of the natural resources available to agriculture. The GIS is used to delineate land-use conflicts and provide reliable information on the natural-resource database. This is followed by combining the data on natural resources with other quantifiable information on available labour, market forecasts, technology, and cost information in order to estimate the economic potential of the agricultural sector. LP is used in this step. Finally, the GIS is applied again to map the crop and land-allocation patterns generated by the LP model. The results are concrete suggestions for resource allocation, farm-size mix, policy application, and implementation projects.

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