ENVIRONMENTAL MANAGEMENT OF RECHARGE AREA CASE STUDY: EXISTING IMPACT OF ARTIFICIAL RECHARGE IN CIESEK SUB-WATERSHED, CILIWUNG WATERSHED, BOGOR REGENCY, WEST JAVA PROVINCE

  • Authors: Syampadzi Nurroh
  • From: Environmental Science, Graduate School Universitas Gadjah Mada

Abstract:

The research have three purpose regarding to environmental management of recharge area. The first purpose in study environmental management of recharge area is that analyzed of impact artificial recharge of decreasing runoff in research area (one of priority watershed, Ciliwung watershed, Indonesia) and also water balance within modified method; the second purpose is that analyzed of social component regarding knowledge and willingness society in mitigation for protection environment of recharge area; and the third of purpose is that concept analyzed for strategic environmental recharge area. Environmental management of recharge area are treating in regarding abiotic component, this component is analyzed by quantitative description method of hydrology models; scoring method; and geography information system also remote sensing. Regarding to actual recharge artificial endorsement that used for quantitative description method of water balance and potential recharge artificial potential. In regarding biotic component, this component is analyzed by qualitative description method of observation and journal?s reference. Regarding to social component, this component is analyzed by qualitative description method of society willingness Index. Based on input result of the analyzed for environmental management that conclusion are quality of recharge area in study area, classified in good nature category is 4,34%; 43,36% in normal nature; 34,26% in starting damaged; 16,97% in less damaged; and 1,07% in strong damaged. Those number of percent are effected regarding to runoff coefficient 0,14 which precipitation through is to be surface runoff (14%) and exchange of stored water is 9% (400 mm/year). Actual capable of artificial recharge (?IRP ) is 9,1% or 50 mm (2013) and 12% or 78 mm (2014) regarding to total runoff volume and component of water balance through passed with impervious area (5,84%) spread to evapotranspiration (27%); runoff (14%); shallow infiltration (31%); and deep infiltration (28%). The main of concept analyzing of strategic environmental recharge area can approach by technical method and institutional method, regarding to approach technical with increasing artificial recharge units and regarding to approach institutional method within given fund incentive by government program or corporate social responsibility in private sector for protection recharge area, environmental management in land and water conservation in starting damaged till Strong damaged of quality recharge area, this strategic is established for economic and ecology balance sustainability.

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