Fuzzy Optimization Assessment of DRASTIC Groundwater Vulnerability Based on Entropy Weight and GIS

Geoscience ›› 2009, Vol. 23 ›› Issue (1): 150-156.

• Engineering Geology and Environmental Geology • Previous Articles Next Articles

Fuzzy Optimization Assessment of DRASTIC Groundwater Vulnerability Based on Entropy Weight and GIS

ZHANG Bao-xiang ^1,2，WAN Li ³，YU Cheng¹，MENG Fan-hai ⁴

1Center for Water Research,College of Engineering, Peking University, Beijing100871,China; 2Water Resources Research Institute of Shandong Province,Jinan,Shandong250013,China; 3School of Water Resources and Environment,China University of Geosciences,Beijing100083,China;
4Longkou Water Authority Bureau, Longkou,Shandong265701,China

Received:2008-12-20 Revised:2009-01-16 Online:2009-02-20 Published:2011-12-21

Abstract

Abstract:

Groundwater vulnerability assessment and mapping are the basic work for groundwater environment protection. DRASTIC index system is the most popular in the world. The entropy weight fuzzy optimization method was introduced to groundwater vulnerability assessment coupled with GIS in this paper. It avoids the influence of human factor when the parameters weight is evaluated.Taken Huangshuihe river catchment as an example,the entropy weight of DRASTIC parameters and the optimal degree of overlay area were calculated.Thus,the groundwater vulnerability of Huangshuihe river catchment was divided 3 grades:high,medium and low.A good effect of the application is obtained.

Key words: groundwater vulnerability, DRASTIC model, GIS, entropy weight , fuzzy optimization

CLC Number:

P641
X143

ZHANG Bao-xiang WAN Li YU Cheng MENG Fan-hai. Fuzzy Optimization Assessment of DRASTIC Groundwater Vulnerability Based on Entropy Weight and GIS[J]. Geoscience, 2009, 23(1): 150-156.

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Fuzzy Optimization Assessment of DRASTIC Groundwater Vulnerability Based on Entropy Weight and GIS

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