In Lombok Island (Indonesia), the ratio of land area to population is already low, and is likely to decrease because of the increasing size of the human population. The management of land resources is, therefore, important, to ensure the wise and sustainable use of the available land in meeting population demands, especially for food. Geographic Information Systems (GIS) have been used successfully in resource management, and this area of their application has been a major driver in the development of GIS. Because agrosystems need to be tuned to the specific characteristics of regional environments, regionalisation is one way to improve agricultural production and the management of agrotechnology development. The identification of potential areas for growing soybean, peanut and common bean was conducted based on two tools: GIS analysis and the 30 group regionalisation. Both techniques have advantages and disadvantages. Using GIS, exact mapping of the potential category of each grid cell can be done, but it cannot be used to estimate the total humid periods and suitable planting times in a year. Using a regionalisation, these can be done, but only when purposes is suggested as more widely applicable than using GIS analysis. Both techniques have a role to play. Based on an initial validation of the techniques employed and the results obtained, further work is suggested, either for the optimum application of the results presently obtained or for the improvement of the techniques of analysis and thence the production of results for future use. / Master of Science (Hons)