ANALYSIS OF LAND USE CHANGE IMPACT ON HYDROLOGICAL CONDITIONS IN THE CIBEET WATERSHED, WEST JAVA Roando Fahrozi(a), Wahyu Sejati(b)
Civil Engineering Student, Faculty of Civil Engineering and Planning,
Civil Engineering Study Program, Trisakti University, Campus A,
Jl. Kyai Tapa No. 1, Grogol, West Jakarta.
Abstract
Rapid land use changes in the Cibeet Watershed (DAS Cibeet) over the past decade have
triggered environmental issues, particularly related to hydrological imbalances such as
increased peak discharge, reduced infiltration capacity, and heightened flood risk. This study
aims to analyze the impact of land use change on the hydrological conditions of the Cibeet
Watershed during the period 2013-2023. The methods employed include spatial data
processing using ArcGIS software and satellite imagery analysis via Google Earth Engine. The
hydrological parameters analyzed include the Stream Regime Coefficient (KRS), Water Storage
Coefficient (KSA), Annual Flow Coefficient (KAT), and Specific Discharge Index (IDJ).
Discharge and rainfall data were obtained from the Citarum River Basin Agency (BBWS
Citarum) and relevant climatological stations. The results show a significant trend of land
conversion from forest and agricultural areas to built-up areas, contributing to the watershed^s
reduced ability to retain and absorb water. The KRS values tend to increase, indicating unstable
river flow, while the KSA and KAT values decrease, reflecting weakened hydrological
functions. This study highlights the importance of sustainable land use management and the
application of spatial technologies to monitor land use changes in order to maintain the
hydrological balance and sustainability of the Cibeet Watershed
Keywords: ArcGIS, Google Earth Engine, Hydrology, Land use
