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Spatial Based Assessment of Land Suitability and Availability for Maize (Zea mays L.) Development in Maros Region, South Sulawesi, Indonesia

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DOI: 10.4236/ojss.2013.35029    3,972 Downloads   6,243 Views   Citations

ABSTRACT

Recently, South Sulawesi Provincial government has launched the “gong” program with the main objective to optimize all the resources (land, infrastructures, and farmers) in agriculture areas for maize production in the province. This study is aimed at identifying the suitability and availability of land areas for maize development in Maros Regionthe regency having the most extensive agriculture production in South Sulawesi province. This study employed land evaluation method in geographic information system (GIS) based on the FAO Framework for Land Evaluation. Land availability was assessed from overlaying information on land use (obtained from available land use map and SPOT XS image interpretation) and suitability classes based on the FAO Framework, as well as administration boundary map. The results indicated that the S1 (highly suitable) class comprises a total area of approximately 34,468 ha, or about 24% from the total area. The limiting factors for S2 (moderately suitable) and S3 (marginally suitable) classes are slope and nutrient availability, but with the advanced management efforts (moderately input) such sub-classes can actually promote S3 class to S2 level. It was also found that from a total of 144,085 ha of the study area, potential maize development area (for extensification) covers approximately 24,716 ha (or 35.6%). Tanralili, Bantimurung, and Simbang sub-districts cover the largest suitable area, where no significant limiting factors exist. Surprisingly, potential development area for maize in Camba, Mallawa, and Tompobulu sub-districts denotes minus values. This implies the facts that maize cultivation is still practiced on the land that is ecologically not suitable, where steep slope is the dominant limiting factor.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

N.   and S. Baja, "Spatial Based Assessment of Land Suitability and Availability for Maize (Zea mays L.) Development in Maros Region, South Sulawesi, Indonesia," Open Journal of Soil Science, Vol. 3 No. 5, 2013, pp. 244-251. doi: 10.4236/ojss.2013.35029.

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