Land Suitability Evaluation for Citrus Cultivation using GIS and AHP for Different Land Units in Indonesia

The objective of this research is to evaluate the suitability of land for horticultural crops, particularly citrus cultivation, in an effort to increase productivity and support food security in Indonesia. The FAO land evaluation workflow through the Analytic Hierarchy Process (AHP) method was employed, together with the geographic information system (GIS), with several stages of activities such as preparation, survey and data analysis. In the initial stage, a land unit (LU) was formed to facilitate survey activities, data collection and data analysis. The data are analyzed for actual land suitability, followed by AHP analysis to determine relative priorities and potential land suitability. Our study shows that AHP technology is very effective in determining priority weights, as indicated by a consistency ratio (CR) value of