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Evolution characteristics of groundwater and its response to climate and land-cover changes in the oasis of dried-up river in Tarim Basin
Journal of Hydrology ( IF 5.9 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.jhydrol.2020.125644 Wanrui Wang , Yaning Chen , Weihua Wang , Junxin Jiang , Ming Cai , Yongjun Xu
Journal of Hydrology ( IF 5.9 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.jhydrol.2020.125644 Wanrui Wang , Yaning Chen , Weihua Wang , Junxin Jiang , Ming Cai , Yongjun Xu
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Abstract Groundwater is essential for agricultural, ecological and domestic water use, and its depletion under climatic and anthropogenic impacts can impose challenges on regional water resources and ecological security, particularly in arid regions. Spatiotemporal variation and drivers of groundwater are critical to understand groundwater cycling and restore groundwater, while they are poorly understood in arid oasis region due to sparse field monitoring. To address this, we examined the spatiotemporal variations and controlling factors of groundwater level and mineralization degree using data collected at 22 wells in the Wei-Ku Oasis of Tarim Basin during 2000–2018, a typical arid inland river basin in northwest China. Results showed that obviously large spatial and temporal variations existed in both DGL (depth to groundwater level) and DM (degree of mineralization). Groundwater level was the shallowest in spring and deepest in autumn. DGL exhibited a markedly increasing trend (2.05 m per decade), while DM marginally decreased (-0.21 g/L per decade) (p
更新日期：2020-10-01
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