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Spatiotemporal dynamics of groundwater in Henan Province, Central China and their driving factors

文献类型：期刊论文

作者Cai, Panli2; Li, Runkui1,2; Guo, Jingxian2; Xiao, Zhen2; Fu, Haiyu2; Guo, Tongze2; Wang, Tianyi2; Zhang, Xiaoping2; Song, Xianfeng1,2
刊名ECOLOGICAL INDICATORS
出版日期2024-09-01
卷号166页码:17
关键词Groundwater depletion Water diversion Urbanization Extreme precipitation
ISSN号1470-160X
DOI10.1016/j.ecolind.2024.112372
英文摘要Groundwater serves as an important resource for human sustenance and advancement. However, its depletion has emerged as a pressing concern in Central China accompanying with rapid urbanization. To counteract the acute water scarcity, China initiated an extensive project known as the South-to-North Water Diversion (SNWD), spanning over 1,400 km. Despite the project 's magnitude, the precise impacts of both the SNWD and climate variability on regional groundwater dynamics remain uncharted. In this study, we examine groundwater fluctuations and their influencing factors in Central China between 2003 and 2021. Our findings reveal a substantial decline of 5.8 % annually in the mean groundwater drought index (GWI) from 2003 to 2014, signifying a critical phase of groundwater depletion. This reduction was predominantly driven by the joint influence of rapid urban development (accounting for 37.9 %) and diminished precipitation (28.4 %), with a high explanatory power (R 2 = 0.97). Contrastingly, from 2014 to 2021, enhanced precipitation and water transferred through the SNWD led to a 3.5 % yearly increase in GWI, highlighting a recent recovery of groundwater levels. These factors individually contributed 39.2 % and 7.0 % respectively towards this recovery (R 2 = 0.91). Notably, precipitation emerged as the principal determinant shaping both long-term and short-term groundwater variations. Extreme precipitation events, in particular, were shown to swiftly and significantly recharge groundwater reserves. For instance, an extreme precipitation event in July 2021 elevated the GWI by 50 % compared to that of July 2020. Collectively, a blend of strategies including mitigating urbanization pressures, sustaining water diversions through the SNWD, and adapting to potential increases in extreme precipitation events due to global warming are proving instrumental in restoring groundwater resources in central China.
WOS关键词EXTREME PRECIPITATION ; DATA ASSIMILATION ; CLIMATE-CHANGE ; URBANIZATION ; RECHARGE ; CATCHMENT
资助项目National Natural Science Foundation of China[42341206] ; Network Security and Informatization Special Application Demonstration Project of Chinese Academy of Sci-ences[CAS-WX2023SF-0403-01] ; Fundamental Research Funds for the Central Universities[E3E40503X2]
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001273424400001
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Network Security and Informatization Special Application Demonstration Project of Chinese Academy of Sci-ences ; Fundamental Research Funds for the Central Universities
源URL[http://ir.igsnrr.ac.cn/handle/311030/207018]  
专题资源与环境信息系统国家重点实验室_外文论文
通讯作者Li, Runkui
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Cai, Panli,Li, Runkui,Guo, Jingxian,et al. Spatiotemporal dynamics of groundwater in Henan Province, Central China and their driving factors[J]. ECOLOGICAL INDICATORS,2024,166:17.
APA Cai, Panli.,Li, Runkui.,Guo, Jingxian.,Xiao, Zhen.,Fu, Haiyu.,...&Song, Xianfeng.(2024).Spatiotemporal dynamics of groundwater in Henan Province, Central China and their driving factors.ECOLOGICAL INDICATORS,166,17.
MLA Cai, Panli,et al."Spatiotemporal dynamics of groundwater in Henan Province, Central China and their driving factors".ECOLOGICAL INDICATORS 166(2024):17.

入库方式： OAI收割

来源：地理科学与资源研究所

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