THE LAND USE CHANGING INFLUENCE POTENTIAL WITH HYDROGEOLOGY IN CIKAPUNDUNG WATERSHED

• Main Author: MARIA (NIM : 22106312), RIZKA
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/20469
• Institution: Institut Teknologi Bandung

The Condition of Cikapundung watershed has decreased now, both its quality and quantity. Kind of problems that contribute serious condition of Cikapundung watershed like increasing of industrial and housing development make land use function decrease and directly impact for hydrogeology change condition. <br /> <br /> <br /> The changes of sub Cikapundung watershed have been happened. The changes are vast of land conservation (primary forest and pine forest) about 6.3% decreased, production land (plantation, farm, field) about 2.7% increased, building land (industrial town, housing development) 15.8% increased. <br /> <br /> <br /> The quantity of water that flow through Cikapundung watershed comes from rainfall.. Rainfall average accumulations for a year are about 1828.27 mm/year. This condition still influenced by el nino climate changes on 1997 that caused dry season for along time and la nina on 1998 that caused flood. The Increasing of surface run off has happened for 12 year (1994-2006) with average value 868.69 mm/year and decreasing groundwater storage with average value 253.98 mm/year. <br /> <br /> <br /> Based on analysis between land use changes and groundwater storage, we can get results of influence parameter : The changes of forest land change groundwater storage about 0.0096%, changes of settlement area change groundwater storage about 0.0063%, changes of industrial town change groundwater storage about 0.34%, changes of plantation area, farm , fields change groundwater storage about 0.13%, <br /> <br /> <br /> By viewing relationship of land use parameter changes with groundwater storage, It can be known that increasing of industrial town will influence groundwater storage, It caused by increasing of impermeable surface that make infiltration process by soil be difficult, so it will decrease groundwater storage.