中国地质调查2025，Vol.12Issue(4)：86-92,7.DOI:10.19388/j.zgdzdc.2024.303
1980-2023年黄河下游开封段浅层地下水水位演变趋势
Evolutionary trend of shallow groundwater level in Kaifeng section of the lower Yellow River from 1980 to 2023
摘要
Abstract
Kaifeng section in the lower Yellow River exhibits obvious characteristics of a suspended river.The Yellow River lateral seepage and anthropogenic activities have contributed to ambiguous groundwater level trends and complex influencing factors.The 40-year evolution patterns of shallow groundwater levels along the Yellow River in the study area were systematically examined,and intra-annual hydrological dynamics and primary driv-ing mechanisms were analyzed.The results showed that shallow groundwater level along the Yellow River was sig-nificantly positively correlated with rainfall before 2010,and the groundwater level decreased significantly from 2010 to 2020,mainly due to a significant increase in extraction.And the shallow groundwater level showed a fluc-tuating upward trend after 2020,due to the influence of heavy rainfall and groundwater exploitation reduction.The lithology of the vadose zone along the Yellow River is coarse,and rainwater quickly replenishes the groundwater,resulting in a significant rise in shallow groundwater level outside the Yellow River embankment during the rainy season.While shallow groundwater level outside the Yellow River embankment drops significantly by 3 m during the irrigation period.Shallow groundwater level on the inner side of the embankment is mainly affected by the lat-eral seepage of the Yellow River,and the fluctuation of the groundwater level is generally consistent with the fluc-tuation of the Yellow River water level.Based on the stable isotopes of δ18O and δ2H,the lateral seepage of the Yellow River from the river channel to the outer edge of the embankment gradually decreases from more than 80％to less than 50％of the groundwater recharge,and the influence of the lateral seepage of the Yellow River decrea-ses with distance.This paper systematically identifies the evolutionary trend of shallow groundwater level in the lower reaches of the Yellow River,which is helpful to improve the utilization efficiency of groundwater resources,and promote the ecological protection and high-quality development of the lower reaches of the Yellow River.关键词
浅层地下水/降雨/侧渗/地下水位演变/黄河下游Key words
shallow groundwater/rainfall/lateral seepage/evolutionary trend of groundwater level/lower Yellow River分类
天文与地球科学引用本文复制引用
张学庆,刘璐,孟素花,崔向向..1980-2023年黄河下游开封段浅层地下水水位演变趋势[J].中国地质调查,2025,12(4):86-92,7.基金项目
中国地质调查局"黄河下游重要滩区湿地生态地质调查(编号:DD20221773-3)"及中国地质科学院"黄河下游浅层地下位波动上升对水环境演变影响机制研究(编号:JKYZD202411)"项目联合资助. （编号:DD20221773-3）
