The Groundwater Ddynamic Changes and Optimized Analysis of Groundwater Extraction in Danghe River Iirrigated Area
In recent years,the over-exploitation of groundwater caused serious environmental problems in Danghe River irrigated area. This study took the analysis of groundwater change characteristics as basement,focused on the analysis of the optimization of groundwater exploita-tion. The appropriate equations were established by groundwater level constraints,groundwater quantity constraints and ecological environ-mental constrains,which could scientifically analyze and estimate the quantity,quality and space-time distribution of groundwater resources as well as exploitation conditions. The results show that according to the principle (the groundwater wells with rapid decline in the region should be all closed,groundwater wells with slow decline should be partially closed,groundwater wells in basically stable area should be maintained the status quo and all wells within 1 km range around Crescent Spring must be closed),the wells configuration scheme of town-ship irrigation has been proposed,the number of irrigation wells is reduced from 2 571 in 2009 to 1 041 in 2015 and 868 in 2020,and puts forward optimized amount of groundwater exploitation of different towns in Danghe River irrigated area.
groundwater dynamicgroundwater extractionoptimized analysisDanghe River irrigated area
国家科技期刊平台
NSTL
万方数据
维普
