Land suitability evaluation in agricultural landscape planning to support food security of Tomohon City, North Sulawesi

Abstract

Abstract. Tumbelaka S, Saroinsong FB. 2020. Land suitability evaluation in agricultural landscape planning to support food security of Tomohon City, North Sulawesi. Pros Sem Nas Masy Biodiv Indon 6: 594-599. The transformation of agricultural land into land for trade, tourism and settlement has increased from year to year. This causes the decrease in agricultural land. One effort to limit the transfer rate is the planning of agricultural land in accordance with the potential of land resources by taking into account the target of the national food security program that is diversification of food based on local resources. Evaluation of land suitability in determining types of food crops planted on land in certain locations based on the values ??of land characteristics is needed as a support for decision making in agricultural landscape planning. This study aims to plan and determine the locations of agricultural land in the Tomohon city that are for several types of food crops to support food diversification, using Geographic Information System (GIS) technology. The long-term goals are sustainable management of natural resources and the environment (SDAL) and food security. This research method uses land suitability evaluation methods. Land suitability classes consist of very suitable (S1), reasonably appropriate (S2), marginal appropriate (S3) and unsuitable (N) classes. The results showed that there were several agricultural commodities that could be cultivated in Tomohon city agricultural land besides rice, in the context of diversifying carbohydrate food, namely sweet potato (Ipomoea batatas), taro (Colocasia esculenta) and banana (Musa paradisiaca) such as pisang goroho, pisang sepatu, etc. The types of food plants that can be sought besides rice are the types of plants that have long been known to the community as local food sources in the city of Tomohon. Based on the land suitability map obtained, the highly land (S1) for rice, sweet potato and taro and sufficiently land (S2) for banana plants needs to be optimized for management to support diversification and food security.