NDLI: Groundwater Risk Assessment of the Third Aquifer in Tianjin City, China

Content Provider	Springer Nature Link
Author	Dong, Donglin Sun, Wenjie Zhu, Zhaochang Xi, Sha Lin, Gang
Copyright Year	2013
Abstract	More than 70 % of Tianjin city’s water supply comes from groundwater. As water demand increases, this reliance on groundwater has caused serious geological problems, such as seawater intrusion. The third aquifer is the main water supply aquifer for Tianjin city. According to supply conditions, water abundance, exploitation conditions, and water quality of the third aquifer, the type of ecological environment system, protection targets and requirements, the present situation of groundwater exploitation and utilization, the groundwater exploitation demand, and utilization for regional water resources allocation as well as national overall scheme about reasonable exploitation, utilization and protection of groundwater resource, groundwater in Tianjin has been divided into seven function areas. After analysis of influencing factors, like water abundance, exploitation intensity and well density, risk factors have been classified using AHP and GIS. Then the comprehensive evaluation model of groundwater exploitation and utilization risks was built. Using this model, the exploitation and utilization risks of the third aquifer in years 2015, 2020, and 2030 have been forecasted. The results show that the risk grade of this aquifer in 2015 is higher than now, while lower in 2020 and 2030. But the risk grade of the 3rd and 4th aquifer increases, since the water yield of this aquifer must still meet a certain amount to support the basic demand of this city.
Starting Page	3179
Ending Page	3190
Page Count	12
File Format	PDF
ISSN	09204741
Journal	Water Resources Management
Volume Number	27
Issue Number	8
e-ISSN	15731650
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-04-06
Publisher Institution	European Water Resources Association (EWRA)
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Groundwater utilization Risk assessment AHP GIS Tianjin city Hydrogeology Geotechnical Engineering & Applied Earth Sciences Atmospheric Sciences Civil Engineering Environment
Content Type	Text
Resource Type	Article
Subject	Water Science and Technology Civil and Structural Engineering

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