Arahan Penggunaan Lahan untuk Pengendalian Erosi Tanah di Sub-DAS Wuryantoro DTA Waduk Gajah Mungkur Wonogiri Jawa Tengah
Abstract: The research aims to
recommend optimum land use allocation that can control soil surface erosion in
Wuryantoro sub-watershed. The research was done using land evaluation aproach
to land unit and analyzed based on area function allocation, land capability
classification, and erosion hazard rate. Optimization analysis on land use
allocation was done statistically through linear program symplex method using
QSB software.
The results showed that actual land use caused actual soil surface
erosion (A) of Wuryantoro subwatershed was higher that tolerable erosion (T)
treshold. Optimization analysis recommends that to control actual soil surface
erosion (A) to be lower that tolerable erosion (T) treshold, its is needed to
convert all actual land uses of groves and croplands to forest. Actual land
uses of production forests, community forests, irrigated farmlands, rainfeed
farmlands, and residential could still be kept remain as they were.
Keywords: land unit, area
function allocation, land capability, erosion hazard rate, optimum land use
Penulis: Senawi
Kode Jurnal: jpkehutanandd090010
