河流复苏后平原浅层超采区地下水埋深演变研究

Study and analysis of groundwater depth evolution in plain shallow overexploitation area after river recovery

选取海河流域漳卫河沿岸的地下水监测井,根据2021-2022年漳卫河南陶水文站水位与地下水埋深数据,分析平原浅层超采区内的漳卫河水位对地下水埋深变化的影响。分析表明,影响漳卫河沿岸地下水埋深与河流水位关系的主要因素是与河道距离的远近,在距离5 km内,河流水位的高低对地下水埋深的变化具有明显作用,且呈反比例关系。当距离超过5 km以上时,无论埋深的大小,河流水位的高低变化对地下水埋深的影响作用明显减小,同时出现明显滞后现象。

Groundwater monitoring Wells along the Zhangwei River in the Haihe River Basin were selected,and according to the water level and groundwater depth data of Zhangwei River Nantao Hydrological Station in 2021-2022,the influence of the water level of Zhangwei River on the change of groundwater depth in plain shallow overexploitation region was analyzed.The analysis shows that the main factor affecting the relationship between groundwater depth and water level along the Zhangwei River is the distance from the river.Within the distance of 5km,the water level of the river has an obvious effect on the change of groundwater depth,and the relationship is inversely proportional.When the distance is more than 5 km,regardless of the depth,the influence of river water level on groundwater depth is obviously reduced,and obvious lag phenomenon occurs.