Land Cover and Groundwater Recharge Changes Study Using Conservation Index in the Highland Ciburial Village, Bandung Regency

Ciburial Village, Cimenyan Region, is a potential location for Bandung Basin groundwater recharge area. Based on West Java Local Regulation No. 1 Year 2008 (Perda No.1/2008) about Northern Bandung Region Management, Ciburial Village is classified as protection area. As a matter of fact, constructed area in Ciburial Village has been increasing. Thus, it causes decreasingin water protection function. Hence, study on degraded land impact estimation to water conservation in Ciburial Village is needed. To estimate how much impact had been done by degraded land, spatial use in Ciburial Village was analyzed. To analyze spatial use, land cover of Ciburial Village isdivided into four types, settlements, forests, agricultures and grasslands. Each land cover's water conservation ability was approached by conservation index. The spatial analysis between 2006 and 2015 shows the decreased area of good level and normal level water conservation index by 1.45 hectares and 1.25 hectares respectively and shows the increased area of critical level water conservation index by 2.7 hectares. Land cover changes also impactonactual conservation index, whichdecreased from 0.610 on 2007 to 0.606 in 2015.