Identifying Potential Sites for Artificial Recharge in the Plain Area of the Daqing River Catchment Using GIS-Based Multi-Criteria Analysis

As an essential component for the development of Xiong’an New Area, China’s second capital, groundwater in area has been overexploited, resulting ecological and environmental geological problems. Therefore, artificial replenishment measures are urgently required, which evaluation recharge potential is important prerequisite. In this study, a GIS (Geographic Information System)-based multi-criteria system was constructed, considering source water conditions, infiltration aquifer storage conditions. addition, factors such as distance to canal, quality, slope, vadose zone rate, drainage density, depth, hydraulic conductivity, thickness, soil sensitive areas were also analyzed. used draw calculate sites. The results showed that sites study mainly distributed alluvial plains on both sides river, with total 2103.9 km2, accounting 15.8% area. alluvial–proluvial Baigou River north-central area, 39.4 approximately 2.2% Area.