Geoscience ›› 2011, Vol. 25 ›› Issue (4): 796-801.
• Water Resource and Environment • Previous Articles Next Articles
YANG Muzhuang, WU Tao，LI Yanjun
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Abstract:
Taking into account various factors that may influence the groundwater specific vulnerability, including topography, strata, hydrogeology and human activities, this paper selected 9 indices from these factors, and constructed nonlinear fuzzy membership with method of fuzzy comprehensive evaluation. The membership degrees of these indices were calculated, then the groundwater specific vulnerability in Guangzhou was assessed combining with the GIS technology of spatial analysis. The results indicate that the indices of special vulnerability change in the range of 299-2216, and could be divided into 5 grades. It comes to the conclusion that the groundwater in Guangzhou is easily polluted, and there are much obvious regional differences. It is necessary to take different protecting measures to promote sustainable utilization of groundwater resources in Guangzhou.
Key words: groundwater;specific vulnerability, sustainable utilization, fuzzy comprehensive evaluation method, Guangzhou
CLC Number:
P6418
YANG Mu-Zhuang, TUN Chao, LI Yan-Jun. Assessment of Groundwater Specific Vulnerability in Guangzhou Based on Fuzzy Comprehensive Evaluation[J]. Geoscience, 2011, 25(4): 796-801.
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