干旱区生态环境知识资源中心(Arid): Quantifying the relative contribution of climate variability and human activities impacts on baseflow dynamics in the Tarim River Basin, Northwest China

Arid

DOI	10.1016/j.ejrh.2021.100853
	Quantifying the relative contribution of climate variability and human activities impacts on baseflow dynamics in the Tarim River Basin, Northwest China
	Li, Hongbin; Wang, Weiguang; Fu, Jianyu; Chen, Zefeng; Ning, Zhongrui; Liu, Yating
通讯作者	Wang, WG (corresponding author), Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Peoples R China.
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
EISSN	2214-5818
出版年	2021
卷号	36
英文摘要	Study region: Tarim River Basin (TRB)- the largest inland basin of China and essential part of the water supply to northwest arid region of China. Study focus: Information on baseflow dynamics and attributions is needed to develop sustainable water management strategies in cold and arid regions. The study separates baseflow with multiple separation methods, and analyzes the regional patterns and changes of baseflow and baseflow index (BFI). Furthermore, we quantitatively evaluate response of baseflow and BFI to climate variabilities and anthropogenic activities through the concept of climate elasticity under the water-energy balance framework. The purpose is to understand the dynamics and attributions of baseflow in the TRB. New hydrological insights for the region: We found that climate variabilities play leading roles in the increase of baseflow in the headstreams. Among them, temperature is decisive climatic factor controlling baseflow variation. Changes of potential evapotranspiration have significant negative impacts on baseflow variations across the TRB. Besides, precipitation and inflow possessed great positive impacts on baseflow increasing. However, the decline across the basin BFI is found with increasing precipitation and inflow, indicating the increasing precipitation and inflow can promote more surface runoff, particularly in late spring and early summer. Attribution analysis indicates that climate change and human activities (e.g., engineering construction, agricultural activities, etc.) have the opposite impact on baseflow variation. Human activities are the main factors reducing baseflow in the mainstreams. Furthermore, the combined effects of climate change and human activities have caused the decline of BFI.
英文关键词	Climate change Human activities Baseflow Tarim River Basin Glacier melt
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000687243100002
WOS关键词	LOESS PLATEAU ; AKSU RIVER ; LAND-USE ; RUNOFF ; WATER ; EVAPORATION ; IRRIGATION ; SEPARATION ; STRATEGIES ; CATCHMENTS
WOS类目	Water Resources
WOS研究方向	Water Resources
来源机构	河海大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363935
作者单位	[Li, Hongbin; Wang, Weiguang; Fu, Jianyu; Chen, Zefeng] Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Peoples R China; [Li, Hongbin; Wang, Weiguang; Fu, Jianyu; Chen, Zefeng; Ning, Zhongrui; Liu, Yating] Hohai Univ, Coll Hydrol & Water Resources, Nanjing 210098, Peoples R China
推荐引用方式 GB/T 7714	Li, Hongbin,Wang, Weiguang,Fu, Jianyu,et al. Quantifying the relative contribution of climate variability and human activities impacts on baseflow dynamics in the Tarim River Basin, Northwest China[J]. 河海大学,2021,36.
APA	Li, Hongbin,Wang, Weiguang,Fu, Jianyu,Chen, Zefeng,Ning, Zhongrui,&Liu, Yating.(2021).Quantifying the relative contribution of climate variability and human activities impacts on baseflow dynamics in the Tarim River Basin, Northwest China.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,36.
MLA	Li, Hongbin,et al."Quantifying the relative contribution of climate variability and human activities impacts on baseflow dynamics in the Tarim River Basin, Northwest China".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 36(2021).