华北水利水电大学学报（自然科学版）2026，Vol.47Issue(3)：35-45,11.DOI:10.19760/j.ncwu.zk.2026037
鄱阳湖流域地下水位时空变化特征及气候因子影响分析
Analysis of Spatiotemporal Variation Characteristics of Groundwater Level and Impact of Climatic Factors in Poyang Lake Basin
摘要
Abstract
[Objective]This study aims to reveal the spatiotemporal evolution patterns of groundwater level in the Poyang Lake Basin and the response mechanisms to extreme drought events,thereby providing a theoretical basis and decision-making references for sustainable water resource management and ecological conservation under climate change.[Methods]Based on data from 116 groundwater observation wells from 2018 to 2022,this study analyzed the spatiotemporal changes in groundwater level and used a geographically weighted regression model to explore the effects of precipitation,evapotranspiration,and sur-face water distribution on groundwater level dynamics.[Results](1)In over 90%of the Poyang Lake Basin,groundwater depth was within 9 m,and in over 50%it was between 4 and 8 m,with greater depth in autumn and winter.(2)Influenced by topography and geomorphology,the groundwater level in the upstream of the river basin reached 200-300 m,while that in the downstream was approximately 20 m.Groundwater generally flowed from mountainous areas to the near-lake plain areas,and the groundwater level dynamics in plain areas showed greater variability.(3)Multi-factor analysis showed that compared to evapotranspiration(contribution<1),surface water distribution and precipitation had a stronger impact on groundwater level fluctuations(contribution>2).(4)The impact of extreme drought in 2022 on groundwater level mainly occurred after July,manifesting as an increase in groundwater depth and a decrease in storage.[Conclusions]Groundwater level in the Poyang Lake Basin is highly sensitive to precipitation changes,and surface water dynamics and precipitation processes are the main driving factors of groundwater level changes.This study can provide a scientific basis for water resource management and ecologically sustainable development in the river basin.关键词
地下水动态/地理加权回归/水资源储备/鄱阳湖流域/极端水文事件Key words
groundwater dynamics/geographically weighted regression/water resource storage/Poyang Lake Basin/extreme hydrological events分类
天文与地球科学引用本文复制引用
杨美,胡梅,李云良,邢子康,宋钢,吴光东,陈静,储小东..鄱阳湖流域地下水位时空变化特征及气候因子影响分析[J].华北水利水电大学学报（自然科学版）,2026,47(3):35-45,11.基金项目
国家自然科学基金项目(42071036) （42071036）
江西省"双千计划"人才项目(jxsq2023101105) （jxsq2023101105）
江西省水资源基础调查项目(赣自然资字[2024]27号) （赣自然资字[2024]27号）
江西省自然科学基金重点项目(20242BAB26044) （20242BAB26044）
中国科学院青年创新促进会优秀会员项目(Y2023084) （Y2023084）
中国科学院南京地理与湖泊研究所"十四五"揭榜挂帅项目(NIGLAS2022GS08). （NIGLAS2022GS08）
