内蒙古查汗套海滩生态建设区地下水流动系统

内蒙古查汗套海滩生态建设区地下水潜水流动系统由上更新统冲积层孔隙潜水流动子系统（Q₃^al）、中更新统冲积层孔隙潜水流动子系统（Q₂^al）、基岩孔隙潜水流动子系统、全新统风成砂孔隙潜水流动子系统（Q₄^eol）以及全新统冲积孔隙潜水流动子系统（Q₄^al）组成.其中主要开采地下水目的层为Q₃^al，其他子系统都为Q₃^al子系统地下水的补给系统之一.Q₃^al、Q₄^eol及基岩潜水流动子系统都接受大气降水入渗补给，最终通过Q₃^al的东侧边界排入黄河.在天然条件下，Q₃^al子系统在洪峰、凌汛期受黄河水补给，其他时期排泄于黄河.

THE GROUNDWATER FLOW SYSTEM IN CHAHANTAOHAI ECOLOGICAL ENVIRONMENT IMPROVEMENT AREA, INNER MONGOLIA

The groundwater flow system in the Chahantaohai ecological environmental improvement area, Inner Mongolia is composed of Upper Pleistocene alluvium pore water flow subsystem (Q3al), Middle Pleistocene alluvium pore water flow subsystem (Q2al), basement pore water flow subsystem,Holocene eolian sand pore water flow subsystem (Q4eol) and Holocene alluvium pore water flow subsystem (Q4al). Among them, the major mining bed is Q3al. All the other subsystems are the recharge beds for Q3al. The Q3al, Q4eol and basement groundwater flow subsystems receive the influent seepage recharge from the meteoric water, and then discharge at the eastern edge of Q3al. In natural condition, the Q3al subsystem receives recharge from Yellow River during flood peak and overflow stages, while discharges to Yellow River in other seasons.