Eco-environmental vulnerability assessment for large drinking water resource: a case study of Qiandao Lake Area, China

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• 作者：Qing Gu ; Jun Li ; Jinsong Deng ; Yi Lin ; Ligang Ma ; Chaofan Wu…
• 关键词：eco ; environment ; vulnerability assessment ; drinking water source ; fuzzy AHP ; GIS ; Qiandao Lake Area
• 刊名：Frontiers of Earth Science
• 出版年：2015
• 出版时间：September 2015
• 年：2015
• 卷：9
• 期：3
• 页码：578-589
• 全文大小：1,007 KB
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• 作者单位：Qing Gu (1)
  Jun Li (1) (2)
  Jinsong Deng (1) (2)
  Yi Lin (1)
  Ligang Ma (1)
  Chaofan Wu (1)
  Ke Wang (1)
  Yang Hong (2) (3)
  
  1. Institution of Remote Sensing and Information System Application, Zhejiang University, Hangzhou, 310058, China
  2. School of Civil Engineering and Environmental Sciences and School of Meteorology, University of Oklahoma, Norman, OK, 73019, USA
  3. State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing, 100084, China
  
• 刊物主题：Earth Sciences, general;
• 出版者：Springer Berlin Heidelberg
• ISSN：2095-0209

文摘

The Qiandao Lake Area (QLA) is of great significance in terms of drinking water supply in East Coast China as well as a nationally renowned tourist attraction. A series of laws and regulations regarding the QLA environment have been enacted and implemented throughout the past decade with the aim of negating the harmful effects associated with expanding urbanization and industrialization. In this research, an assessment framework was developed to analyze the eco-environmental vulnerability of the QLA from 1990-010 by integrating fuzzy analytic hierarchy process (FAHP) and geographical information systems (GIS) in an attempt to gain insights into the status quo of the QLA so as to review and evaluate the effectiveness of the related policies. After processing and analyzing the temporal and spatial variation of eco-environmental vulnerability and major environmental issues in the QLA, we found that the state of eco-environmental vulnerability of the QLA was acceptable, though a moderate deterioration was detected during the study period. Furthermore, analysis of the combination of vulnerability and water quality indicated that the water quality showed signs of declination, though the overall status remained satisfactory. It was hence concluded that the collective protection and treatment actions were effective over the study period, whereas immediately stricter measures would be required for protecting the drinking water quality from domestic sewage and industrial wastewater. Finally, the spatial variation of the eco-environmental vulnerability assessment also implied that specifically more targeted measures should be adopted in respective regions for long-term sustainable development of the QLA.