典型南方丘陵山区地下水动态及影响因素分析  

Analysis of Groundwater Dynamics and Influencing Factors in Hilly Areas

作　　者：方少文 陈静 吴智[1] 韦丽 徐征文 FANG Shaowen;CHEN Jing;WU Zhi;WEI Li;XU Zhengwen(Jiangxi Hydrological Monitoring Center,Nanchang 330002,China;College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China;Fuhe Hydrological and Water Resources Monitoring Center,Fuzhou 344000,China)

机构地区：[1]江西省水文监测中心,江西南昌330002 [2]河海大学水文水资源学院,江苏南京210098 [3]抚河水文水资源监测中心,江西抚州344000

出　　处：《水文》2024年第2期66-73,共8页Journal of China Hydrology

基　　金：江西省水利科技计划项目(202223YBKT26)。

摘　　要：目前针对南方低山丘陵区地下水动态的研究较少,且仍存在对地下水位及其影响因素之间关系的空间非平稳性进行定量化表达方面的不足。以江西省抚河流域典型丘陵山区为例,分析丘陵山区地下水动态,并基于地理加权回归模型和多源数据,定量化表达影响因素在山地区和平原区对地下水位的贡献度排序,从时空尺度系统对比影响因素作用效果的差异。结果表明,研究区地下水动态以降水补给、侧向排泄为主,地下水位月际波动大,空间上呈现由南向北递减趋势。山地区和平原区地下水位均受降水量因子和高程因子影响最显著,在山地区地表水体面积占比因子对地下水位的贡献较大,而在平原区地表温度因子对地下水位的贡献较大。影响因素的作用效果均具有明显的空间异质性,随着降水量的增加,降水量因子对地下水位的影响逐渐增加,高程因子在山地区正效应明显,地表温度因子总体在平原区负效应明显。Currently,there is limited research on the groundwater regime in the southern low hilly areas,and there is still a lack of quantitative expression for the spatial non-stationarity relationship between groundwater levels and their influencing factors.Taking the typical hilly area of the Fuhe River Basin in Jiangxi Province as an example,this study analyzes the groundwater regime in the hilly area.Based on the geographically weighted regression model and multi-source data,it quantitatively expresses the contribution ranking of influencing factors to groundwater levels in the mountainous and plain areas,and compares the differences in the effects of influencing factors on different temporal and spatial scales.The results show that the groundwater regime in the study area is mainly influenced by precipitation and evapotranspiration,with large monthly fluctuations in groundwater levels and a decreasing trend from south to north in terms of spatial distribution.Both the mountainous area and the plain area are significantly influenced by precipitation and ground surface elevation factors,with the mountainous area having a larger contribution from the percentage of surface water area factor to groundwater levels,while the plain area is more influenced by the land surface temperature factor.The effects of influencing factors exhibit obvious spatial heterogeneity.With the increase in precipitation,the influence of precipitation factor on groundwater levels gradually increases.The ground surface elevation factor shows a positive effect in the mountainous area,while the land surface temperature factor generally exhibits a negative effect in the plain area.

关 键 词：地理加权回归 丘陵山区 地下水动态 影响因素 

分 类 号：P345[天文地球—水文科学] TV11[天文地球—地球物理学]