Spatial Analysis for Land Capability Assessment Using Geographic Information System
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Land utilization in Wampu Hulu Sub Watershed should be based on its land capability. This research was conducted in March-September 2011 at Wampu Watershed, Langkat, North Sumatra, Indonesia. Land capability classification was conducted by spatial analysis for capability of land criteria using Geographic Information System (GIS) (overlay technique). The land criteria are slope, soil erodibility, level of erosion hazard, soil depth, soil texture, permeability and drainage. Soil analyze was done in order to obtain the data of soil texture, permeability, soil erodibility, while slope, soil depth, level of erosion hazard and drainage was obtain from land system map. The result showed that the land capability classification at Wampu Hulu Sub Watershed, divided by three classes, namely: Class III, V, and VI.