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Multi-Ecohydrological Interactions Between Groundwater and Vegetation of Groundwater-Dependent Ecosystems in Semi-Arid Regions: A Case Study in the Hailiutu River Basin

文献类型：期刊论文

作者Zeng, Lei2,3,4,5; Xu, Li1,6; Song, Boying1,6; Wang, Ping1,6; Qiao, Gang2,3,4,5; Wang, Tianye7; Wang, Hu2,3,4,5; Jing, Xuekai2,3,4,5
刊名LAND
出版日期2025-12-29
卷号15期号:1页码:60
关键词groundwater-dependent ecosystems (GDEs) climate change impacts groundwater recharge sustainable water management hydrological processes Hailiutu River Basin
DOI10.3390/land15010060
产权排序5
文献子类Article
英文摘要The Hailiutu River Basin in northern China represents a semi-arid area where groundwater-dependent ecosystems (GDEs) play a critical role in maintaining regional vegetation structure and ecological stability. This study investigated the spatiotemporal dynamics of GDEs and their relationship with water conditions using trend analysis, partial correlation, and Random Forest models over the period of 2002-2022. The results show that vegetation activity (NDVI) increased at a rate of 0.0052/yr in GDEs. Precipitation exhibited a basin-wide upward trend of 0.735 mm/yr, while SPEI increased at 0.0207/yr. In contrast, groundwater storage declined markedly at -11.19 mm/yr, highlighting a persistent reduction in water availability that poses a significant risk to the stability of GDEs. Both partial correlation analysis and the random forest model consistently showed strong ecohydrological interactions between vegetation and groundwater. Vegetation dynamics are primarily driven by groundwater availability, especially in groundwater-dependent ecosystems. Conversely, groundwater variations are most strongly influenced by vegetation. The results indicate that precipitation and the standardized precipitation-evapotranspiration index (SPEI) are the primary positive drivers of interannual NDVI variability, whereas groundwater plays a critical role in sustaining GDEs. Field observations of key species confirm the dependence of GDEs on groundwater, and vegetation dynamics are regulated by climate and groundwater; however, ongoing groundwater decline may threaten ecosystem stability. These findings demonstrate that vegetation transpiration exerts the dominant influence on groundwater variations, while groundwater simultaneously constrains vegetation growth, particularly in areas where declining groundwater storage anomalies (GWSAs) coincide with reduced NDVI. The results emphasize that continuous groundwater depletion threatens vegetation-groundwater sustainability, highlighting the need for balanced groundwater and vegetation management in arid regions.
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WOS关键词LOESS PLATEAU ; SOIL-MOISTURE ; CATCHMENT ; CLIMATE ; DEPTH ; CHINA
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001671741400001
出版者MDPI
源URL[http://ir.igsnrr.ac.cn/handle/311030/221066]  
专题陆地水循环及地表过程院重点实验室_外文论文
通讯作者Xu, Li
作者单位1.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China;
2.China Geol Survey, Key Lab Groundwater & Ecol Arid & Semiarid Areas, Xian 710019, Peoples R China;
3.Minist Nat Resources, Observat & Res Stn Groundwater & Ecol Yulin, Yulin 710019, Peoples R China;
4.China Geol Survey, Minist Nat Resources, Xian Ctr, Xian 710019, Peoples R China;
5.Shaanxi Water Resources & Environm Engn Technol Re, Xian 710019, Peoples R China;
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
7.Zhengzhou Univ, Sch Water Conservancy & Transportat, Zhengzhou 450001, Peoples R China
推荐引用方式
GB/T 7714		 Zeng, Lei,Xu, Li,Song, Boying,et al. Multi-Ecohydrological Interactions Between Groundwater and Vegetation of Groundwater-Dependent Ecosystems in Semi-Arid Regions: A Case Study in the Hailiutu River Basin[J]. LAND,2025,15(1):60.
APA Zeng, Lei.,Xu, Li.,Song, Boying.,Wang, Ping.,Qiao, Gang.,...&Jing, Xuekai.(2025).Multi-Ecohydrological Interactions Between Groundwater and Vegetation of Groundwater-Dependent Ecosystems in Semi-Arid Regions: A Case Study in the Hailiutu River Basin.LAND,15(1),60.
MLA Zeng, Lei,et al."Multi-Ecohydrological Interactions Between Groundwater and Vegetation of Groundwater-Dependent Ecosystems in Semi-Arid Regions: A Case Study in the Hailiutu River Basin".LAND 15.1(2025):60.

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来源：地理科学与资源研究所

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