ANALISIS SPASIAL POTENSI RESAPAN AIR DI DAERAH ALIRAN SUNGAI MIU KABUPATEN SIGI

The Miu Watershed is essential in supplying clean water for the
community's needs and as a source of irrigation water for agricultural land in the Sigi
Regency. Despite having an important role, the Miu Watershed is frequently hit by
floods and landslides, resulting in economic, social and environmental losses. Low
water absorption capacity will affect surface water runoff resulting in flooding. This
study aims to identify the potential for water absorption in the Miu watershed based
on four spatial parameters, namely land use, rainfall, soil type, and slope, as
determining factors for the condition of water catchment areas. The method used in
this study is the scoring and overlay method to obtain the condition of the water
catchment area based on current conditions. Spatial data analysis uses a Geographic
Information System (GIS) by adding up the results by multiplying the scores and
weights of each different parameter. The analysis results produce four conditions of
the water catchment area: good, naturally normal, critical start, and critical
conditions. The condition of the Miu watershed catchment with the most significant
area is 53,727.64 ha (81.98%) of the total area of the study area with normal natural
conditions.