干旱区生态环境知识资源中心(Arid): Evolution characteristics of groundwater and its response to climate and land-cover changes in the oasis of dried-up river in Tarim Basin

Arid

DOI	10.1016/j.jhydrol.2020.125644
	Evolution characteristics of groundwater and its response to climate and land-cover changes in the oasis of dried-up river in Tarim Basin
	Wang, Wanrui; Chen, Yaning; Wang, Weihua; Jiang, Junxin; Cai, Ming; Xu, Yongjun
通讯作者	Chen, YN (corresponding author), Chinese Acad Sci, Xinjiang Inst Ecol & Geog, 818 South Beijing Rd, Urumqi 830011, Peoples R China.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2021
卷号	594
英文摘要	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 < 0.001) during 2000-2018. The spatial distributions of DGL and DM were complex. Larger variation of DGL/DM generally occurred at the areas with greater DGL/DM. DM in the northwestern part was obviously smaller than that in the southeastern part. The variation of DGL in the eastern region was noticeably larger than that in the western region. Human activity was the main driving factor of DGL increasing, climate change had a dominant role in DM decreasing, and the relationship between controlling factors and groundwater varied in space and season. Decreasing riverbank leakage and increasing volume of evapotranspiration, groundwater pumping and water drainage led to decreasing groundwater level, while increasing infiltration/leakage from irrigated water, canal and reservoir resulted in increasing groundwater level. The results could help to advance the understanding of groundwater cycling mechanism, and be useful in improving sustainable groundwater management and restoring ecosystem in arid region.
英文关键词	Groundwater dynamics Climate variability Land use change Agricultural irrigation Dried-up river oasis Tarim Basin
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000641589600003
WOS关键词	HEIHE RIVER ; WATER-RESOURCES ; SEMIARID REGIONS ; NORTHWEST CHINA ; XINJIANG UYGUR ; DUNHUANG BASIN ; EJINA BASIN ; GRACE DATA ; RECHARGE ; SALINITY
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350880
作者单位	[Wang, Wanrui; Chen, Yaning; Wang, Weihua] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; [Wang, Wanrui; Chen, Yaning; Wang, Weihua] Univ Chinese Acad Sci, Beijing 100000, Peoples R China; [Jiang, Junxin; Cai, Ming; Xu, Yongjun] Xinjiang Tarim River Basin Aksu Management Bur, Aksu 843000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Wanrui,Chen, Yaning,Wang, Weihua,et al. Evolution characteristics of groundwater and its response to climate and land-cover changes in the oasis of dried-up river in Tarim Basin[J]. 中国科学院新疆生态与地理研究所,2021,594.
APA	Wang, Wanrui,Chen, Yaning,Wang, Weihua,Jiang, Junxin,Cai, Ming,&Xu, Yongjun.(2021).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,594.
MLA	Wang, Wanrui,et al."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 594(2021).