The prediction of sediment yield at mouth of je'ne rakikang catchment area

Abstract

Sedimentation caused by the occurrence of erosion processes is one of the issues that is often discussed because the impacts have an adverse effect on the condition of a land.This research aims to determine the total erosion by using the Universal Soil Loss Equation-based on Geographic Information System and predict the sediment yield using Sediment Delivery Ratio methods. This research was expected to provide information material for relevant agencies in planning watershed management in land rehabilitation and conservation of soil and water particularly Jeneberang Watershed Je'ne Rakikang catchment area. This research was conducted in Je'ne Rakikang catchment area, Parangloe districts, Gowa. This research approach the land unit as the unit of analysis. The results showed that the amount of erosion in the reseach area was classified as very heavy but the calculation results of the sediment at 1: 17 of the total value erosion. The value of total erosion was strongly influenced by the slope and soil types, while the value of the sediment was influenced by the characteristics of the Watershed.

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