Analysis Of Erosion Rate And Mainstay Discharge Programming In Ake Lamo Basin, North Maluku
Abstract
One of the potential sources of water resources that is quite large and strategic is the river. One of these rivers is the Ake Lamo river which is used to support local water needs. To support these needs, there are plans in the construction of reservoirs so that it is necessary to analyze the erosion rate and mainstay discharge using digital elevation model (DEM) data and meteorological data. Based on spatial analysis using digital elevation model (DEM), the catchment value of Ake Lamo watershed is 335.71 km2, land slope is 4.54 which can be classified as a rather steep slope level, and land cover includes dry forest with an area of 260.41 km2, shrubs with an area of 45.27 km2, reeds with an area of 18.00 km2, and water bodies with an area of 12.03 km2. Based on the spatial analysis, the erosion rate value was 86.64 tons/ha/year with class III classification in the form of moderate erosion hazard level. The mainstay discharge analysis was conducted using the F.J Mock method with the help of MATLAB software to obtain a value of 10.47 m3/s
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