干旱区生态环境知识资源中心(Arid): Modeling and assessing the impacts of climate change on groundwater recharge in endorheic basins of Northwest China

Arid

DOI	10.1016/j.scitotenv.2024.170829
	Modeling and assessing the impacts of climate change on groundwater recharge in endorheic basins of Northwest China
	Cheng, Wenju; Feng, Qi; Xi, Haiyang; Yin, Xinwei; Cheng, Lei; Sindikubwabo, Celestin; Zhang, Baiting; Chen, Yuqing; Zhao, Xinyue
通讯作者	Feng, Q
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2024
卷号	918
英文摘要	Climate change imposing additional stressors on groundwater resources globally, thereby predicting groundwater recharge (GR) changes is crucial to sustainably managing water resources, especially in the arid endorheic basins. Groundwater in the Endorheic Basins of Northwest China (NWEB) is potentially impacting regional socioeconomic output and ecosystem stability due to the imbalance between supply and extraction exacerbated by climate change. Hence, recognizing the impacts of climate change on past and future GR is imperative for groundwater supply and sustainable groundwater management in the NWEB. Here, the impact of historical (1971-2020) and projected (2021-2100) climate changes on GR across the entire NWEB and three distinctive landscape regions (i.e., mountainous, oasis, and desert) were assessed. A coupled distributed hydrologic model (CWatM-HBV model), which integrates the Community Water Model (CWatM) and the HBV model, was run with three shared socioeconomic pathways (SSP1-2.6, SSP2-4.5, and SSP3-7.0) forcing from 10 general circulation models (GCMs) to simulate and analyze the interannual and seasonal variations of GR, along with their driving factors. Over the past 50 years, both precipitation and runoff have undergone significant increases, and leading to a dramatic rise in GR (0.09 mm yr(-1)). The future annual growth rate of GR is projected to range from 0.01 to 0.09 mm yr(-1) from SSP1-2.6 to SSP3-7.0 across the entire NWEB, with the majority of the increase expected during the spring and summer seasons, driven by enhanced precipitation. GR from the mountainous region is the primary source (accounting for approximately 56-59 %) throughout the NWEB with the greatest increase anticipated. Precipitation and runoff have significant influences on GR in mountainous areas, and the impact of precipitation on GR is expected to increase over time. Changes in GR in oasis and desert areas are mainly limited by precipitation variation and increase in the SSP2-4.5 and SSP3-7.0 scenario. Additionally, the processes of glacial retreat and permafrost degradation will complicate the GR dynamics although the process is largely interfered with by anthropogenic environmental changes, especially in oasis-desert systems. The average annual recharge in the NWEB was 8.9 mm in the historical period and 13.6 +/- 4.1 mm in the future. Despite an increase in GR due to climate change, groundwater storage is likely to continue to decline due to complex water demands in the NWEB. This study highlights the significance of future precipitation changes for GR and contributes to the understanding of the influence of climate change on groundwater systems and advances the sustainable management of water resources.
英文关键词	Groundwater recharge CWatM-HBV model Climate change Endorheic basins of Northwest China
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001184525100001
WOS关键词	WATER-RESOURCES ; HYDRAULIC CONDUCTIVITY ; EXTREME PRECIPITATION ; TIBETAN PLATEAU ; SURFACE-WATER ; INLAND RIVER ; ARID REGION ; RUNOFF ; DATASET ; SCALE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405465
推荐引用方式 GB/T 7714	Cheng, Wenju,Feng, Qi,Xi, Haiyang,et al. Modeling and assessing the impacts of climate change on groundwater recharge in endorheic basins of Northwest China[J],2024,918.
APA	Cheng, Wenju.,Feng, Qi.,Xi, Haiyang.,Yin, Xinwei.,Cheng, Lei.,...&Zhao, Xinyue.(2024).Modeling and assessing the impacts of climate change on groundwater recharge in endorheic basins of Northwest China.SCIENCE OF THE TOTAL ENVIRONMENT,918.
MLA	Cheng, Wenju,et al."Modeling and assessing the impacts of climate change on groundwater recharge in endorheic basins of Northwest China".SCIENCE OF THE TOTAL ENVIRONMENT 918(2024).