自然资源遥感2026，Vol.38Issue(3)：114-125,12.DOI:10.6046/zrzyyg.2025071
渭河流域地下水时空分异性及其影响因素研究
Spatiotemporal differentiation of groundwater and its influencing factors in the Weihe River basin
摘要
Abstract
Recent years have witnessed the exacerbated over-extraction of groundwater in the Weihe River basin,leading to a continuous decline in groundwater reserves.To gain a deeper understanding of the spatiotemporal evolution patterns of groundwater levels in a timely manner,this study conducted a systematic analysis of the spatiotemporal distribution and primary influencing factors of changes in the groundwater reserves of the basin using an optimal parameters-based geographic detector(OPGD)and 2002-2024 groundwater storage data determined through inversion of data from the Gravity Recovery and Climate Experiment(GRACE)satellite.The results indicate that the groundwater reserves in the Weihe River basin experienced a periodic increase from 2002 to 2007,followed by a marked decline from 2007 to 2024.The groundwater reserves in the northern part of the basin suffered from the most severe reduction,while those in the central and western portions showed an upward trend.Climatic factors,including precipitation,normalized difference vegetation index(NDVI),and temperature,were considered the primary factors driving groundwater variation,with the q-values of factor detection determined at 0.25,0.15,and 0.09,respectively.Notably,the interactions between water conservation capacity and climatic factors(especially precipitation and temperature)play a critical role in the groundwater changes observed in the Weihe River basin.关键词
渭河流域/GRACE/地理探测器/影响因素/时空分异性Key words
Weihe River basin/Gravity Recovery and Climate Experiment(GRACE)satellite/geographic detec-tor/influencing factor/spatiotemporal differentiation分类
信息技术与安全科学引用本文复制引用
胡祥祥,石亚亚,赵强,吴成永,于志远,王新民,庞栋栋,宋宝..渭河流域地下水时空分异性及其影响因素研究[J].自然资源遥感,2026,38(3):114-125,12.基金项目
国家自然科学基金项目"气候暖湿化背景下青藏工程走廊冻土环境工程承载力演化趋势研究"(编号:42361020)及天水师范学院创新基金项目"融合InSAR的天水市滑坡易发性评价研究"(编号:CXJ2023-19)共同资助. （编号:42361020）
