Arahan Penggunaan Lahan dan Perencanaan Konservasi Tanah dan Air di DAS Yeh Empas, Tabanan, Bali

Damage to forest resources has caused the environmental balance of watershed (DAS) becomes damaged. It often causes the resultof high levels of erosion. One of land use changes that are currently happening is in Yeh Empaas watershed. Erosion prediction using the USLE (Universal Soil Loss Equation) method is to estimate how much the rate of soil erosion and also to get an idea how good lanf management actionsfor the region. The proposed land use is determine by using the scooring method by combining the slope factor of the field, the soil sensitivity to erosion and the intensity of daily rainfall. Soil sampling was done by takig soil samples from a total of 11 of soil from the land unit. Then research conducted to estimate the rate of erosion, to determinehow much erosion can be tolerated in Yeh Empas watershed, and its relationship with thefactors that influenceit, as well a to determine the proposed of land use. The results of erosion prediction on each of land unit is range from 1.75 to 1,254.96 tons/ha/year with the grade level of soil erosion from slight to very severe. The tolerated soil erosion is range from 15.06 to 24.32 ton/ha/year. The value of erosion prediction that exceeded from tolerated erosion value occurs on land units 7, 8 and 9. On that land unit required proposed land use and soil conservation techniques so that the value of soil erosion prediction could be below from tolerated erosion value. The analysis results of the proposed land use in Yeh Empas watershed is protected forest (land unit 1, 2, 3, 4, 5 and 6) and the management is by planting plants that are adapted to the contour lines of slope.While the outside the forest is proposed for annual crop cultivation area (land unit 7, 8 and 9). The management with the farming plantation development, high density growing crops and terracing are allocated in land unit10 and 11 with a special management of mulching, soilm cover with high density and terracing. Keywords : Watershed, Erosion, Proposed land use and Soil and Water Conservation.