PENGENDALIAN BANJIR BERDASARKAN KELAS KEMAMPUAN LAHAN DI SUB DAS MARTAPURA KABUPATEN BANJAR KALIMANTAN SELATAN

Abstract

Land use conducted in accordance with its ability to protected areas or farm area in a watershed will provide benefits for the benefit of the water system and the welfare of society. Land use do not match the capabilities and purposes may increase the risk of floods. Balitbangda South Kalimantan (2010) states that the period from 2007 to 2010, flood in Banjar regency as many as 10 districts and 65 villages. The purpose of this research is to know the land ability class become the reference for determining the direction of the use and the utilization of the land, While the expected benefits to be a reference for flood control measures for the short and long term. The determination of land capability class is done through spatial approach method by utilizing Geographic information system. The study results obtained: 1) domination of the land capability class parameters: a) slope, > 65% area of 31.46%; b) drainage, either 94.2%; c) The volume of surface rocks, lots of 36.5%; d) the erosion was 49.7%; e) the soil depth in 66.6%; f) soil texture, subtle bit; sandy clay, clay 57.95%. 2) land capability class sub-watershed Riam Kiwa sub watershed Martapura III to VIII. 3) Flood control optimally through forest rehabilitation based on land capability class in the sub watershed Martapura.