THE STUDY OF LAND CONSERVATION FOR MAINTAINING AND IMPROVING THE WATER INFILTRATION CAPABILITY OF SUBANG GROUNDWATER BASIN, WEST JAVA (Case Study: Central Subang Regency)

• Main Author: WISNU ADRIANTO (NIM 25406038), DIMAS
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/7645
• Institution: Institut Teknologi Bandung

Maintaining and improving the land's water infiltration capability is considerably important to support the natural environmental sustainability. The area of study, which plays a role as a recharge area in the Subang groundwater basin system, challenged ironically by the regional development that is potentially destructive to the environment. The lack of land conservation efforts appears to be the major problem as this research attempts to define an early guidance of the conservation assessment. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> This research consists of 3 goals which are (1) the identification of the periodically land use pattern changes and the factor that influences, (2) the identification of the water infiltration capability as an implication of the land use pattern changes, and (3) the recommendations of land conservation efforts. Factors that determine the water infiltration capability are the natural physical condition of the land (topography, soil types and geological/stone characteristic under the surface) and the land use pattern. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> The results of this research regarding to the land use changes between 1997 and 2003 are the conversion of forest areas up to 100% into other uses and the declination of rice field areas for 17,1%. Meanwhile the areas of plantation field rise up to 18,91%, dry agricultural field increases for 34,68% and built up areas developed dramatically by 49,07%. The factor that influences these land use changes is the regional development policy of Subang Regency. In term of water infiltration capability, the result shows that the volume of water infiltrated in 2003 had slightly fallen approximately 3,68% from the amount of 1997. Based on the achievement the study area, which classified into 13 areas, have their particular characteristic of water infiltration capability. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Regarding to the water infiltration capability findings, land conservation efforts are defined into 2 scenarios, which are (1) Improving the land surfaces condition to help increase the water infiltration, also to reduce the potential run off water, and (2) Managing the development, which is controlling the change of land use pattern that any form of infrastructure development may take effect. <br />