Abstract:
Critical land is supported by the physical condition of the soil which is prone to erosion due to excessive land use, high rainfall and steep slope conditions. The Tebing Siring SubWatershed is one of the upstream parts of the Tabunio watershed which is dominated by plantations due to the large number of activities of residents managing land such as plantations. This study aims to analyze the level of land criticality and determine efforts to control the level of land criticality in the Tebing Siring Sub-Watershed of the Tabunio Watershed, Tanah Laut Regency. The methods used in the study are overlapping (overlayed) methods of land cover maps, slope maps and soil type maps with critical land determinant parameters in agricultural business cultivation areas including productivity, slopes, erosion and management. The results showed that land cover/use in oil palm plantations is included in the critical potential category, rubber plantations are in the rather critical to critical category, reeds are included in the critical category and open land is included in the very critical category. Factors caused by the slope of the slope, soil factors, the degree of danger of erosion and its vegetation. Efforts to control the level of land criticality through forest and land rehabilitation directives. Oil palm and rubber plantations are maintained and improved maintenance but with an intercropping pattern and rehabilitated with superior plant types and steep marbles directed at making terraces. Open land and reeds are converted into forests through enrichment of forest plants and Multy Purpose Tree Species (MPTS) that correspond to the place of growth according to plant species and land productivity can increase
