干旱区生态环境知识资源中心(Arid): Groundwater dynamic response mechanism and quantity vulnerability assessment under the influence of human activities

Arid

DOI	10.1007/s11356-020-08645-z
	Groundwater dynamic response mechanism and quantity vulnerability assessment under the influence of human activities
	Li, Hui; Hou, Enke
通讯作者	Li, Hui
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
EISSN	1614-7499
出版年	2020
卷号	27 期号:17 页码:22046-22064
英文摘要	Groundwater depletion becomes a prominent issue due to the fast-growing water demand in semiarid and arid regions, which poses serious hydrogeological problems and restrains regional sustainable development. Groundwater dynamic response mechanism analysis and quantity vulnerability assessment are useful methods for groundwater protection and management. This paper analyzed the spatial and temporal variation of groundwater level in Xi'an, and studied the response characteristic of groundwater dynamic to its driving forces in different periods under the influence of human activities. Considering both hydrological settings and human disturbances, a modified evaluation system based on fuzzy comprehensive evaluation method and DRYTECL model was proposed to assess groundwater quantity vulnerability. In order to make the results more reasonable and in line with actual situation of the study area, a weighting system that builds on subjective and objective weights was put forward as well. The results show that groundwater level sharply dropped in the last few decades, and the spatial autocorrelation of groundwater level has gotten weaker, suggesting that the contribution of natural factors to groundwater-level variation decreased. Land use, exploitation, and other human activities had a great influence on groundwater dynamic by changing the discharge and recharge condition of groundwater, and the response characteristic of groundwater level to precipitation, runoff, and exploitation varied with time and hydrogeological conditions. Groundwater quantity vulnerability map showed 63.8% of the study area fell within moderate-to-high quantity risk, which indicated that groundwater depletion mainly occurred in highly urbanized areas. The single-parameter sensitivity analysis showed that the exploitation is the most sensitive factor to groundwater quantity vulnerability, the real effects of land use on groundwater quantity risk are greater than its theoretical effects, and net recharge is important to groundwater recovery.
英文关键词	Groundwater dynamic Response mechanism Quantity vulnerability Human activities Fuzzy comprehensive evaluation Xi'an City
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000526247400001
WOS关键词	LAND-USE CHANGE ; RISK-ASSESSMENT ; FUZZY AHP ; IMPACT ; CITY ; GIS ; URBANIZATION ; CATCHMENT ; SYSTEM ; REGIME
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/2XILL650/314473
作者单位	Xian Univ Sci & Technol, Coll Geol & Environm, Xian, Peoples R China
推荐引用方式 GB/T 7714	Li, Hui,Hou, Enke. Groundwater dynamic response mechanism and quantity vulnerability assessment under the influence of human activities[J],2020,27(17):22046-22064.
APA	Li, Hui,&Hou, Enke.(2020).Groundwater dynamic response mechanism and quantity vulnerability assessment under the influence of human activities.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,27(17),22046-22064.
MLA	Li, Hui,et al."Groundwater dynamic response mechanism and quantity vulnerability assessment under the influence of human activities".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 27.17(2020):22046-22064.