Ecological Impact Prediction of Groundwater Change in Phreatic Aquifer under Multi-Mining Conditions

In aeolian sandy grass shoal catchment areas that rely heavily on groundwater, mining-induced geological deformation and aquifer drainage are likely to cause irreversible damage natural groundwater systems affect the original circulation of thus threatening ecological environment. This study aimed predict impact level decline vegetation growth in Hailiutu River Basin (HRB), which is a coal-field area. Based remote-sensing data, land use/cover change was interpreted analyzed, central greensward basin were determined. Subsequently, correlation between depth grassland distribution analyzed. Then, system under conditions modeled using MODFLOW, flow field 2029 predicted by loading generalized treatment coal mine water model. The caused mining its influence obtained. results show will decrease depth, would induce degradation risks 4 34 aggregation centers originally depended for HRB because they exceeded threshold. prediction maximum settlement can reach 5 m northern (Yinpanhao), 6 eastern (Dahaize), 10 southern (Balasu) region HRB. Attention should be paid where exceeds minimum threshold plant growth.