DINAMIKA PERUBAHAN PENGGUNAAN LAHAN DI SUB DAS CIRASEA (DAS CITARUM HULU) (The Dynamics of Land Use Change in The Cirasea Sub-Watershed (Citarum Hulu Watershed))

The Cirasea sub-watershed is one of the sub-watersheds that has an important role in the management of the Upper Citarum watershed. The decline in land use has an impact on the hydrological system of the watershed, which is caused by changes in land use. The land-use change is determined by analyzing the results of the classification using the Maximum Likelihood Classification (MLC) algorithm in QGIS software. Land use classification using Landsat Image 2009-2019. The classification results include forest, secondary forest, built-up areas, open land, plantations, dryland farming, rice fields, shrubs, and water bodies. The accuracy test using the Kappa Index reached 85.15% or almost perfect. The land use classification that occurs shows changes in the area between 2009 and 2019. The land that has decreased is 1,437.13 ha of forest, 1,336.21 ha of rice fields, 367.83 ha of secondary forest, and 94,148 ha of dryland farming. Meanwhile, land that has increased is 1,476.69 ha of open land, 1,056.39 ha of built-up areas, 463.63 ha of shrubs, 235 ha of plantations, and 3.07 ha of water bodies.