Journal of Guangxi Normal University(Natural Science Edition) ›› 2014, Vol. 32 ›› Issue (2): 168-174.

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Groundwater Vulnerability Evaluation System and Assessment Method in Zhaidi Underground River System

PAN Xiao-dong1, YIN Xue-ling2, TANG Jian-sheng1, SU Chun-tian1, MENG Xiao-jun1   

  1. 1.Institute of Karst Geology, Chinese Academy of Geological Sciences /Karst Dynamics Laboratory, Ministry of Land and Resources, Guangxi China,Guilin Guangxi 541004,China; 2.Bureau of Water Resources of Hezhang County,Bijie Guizhou 553200,China
  • Received:2013-10-22 Online:2014-06-25 Published:2018-09-25

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Abstract: In order to study karst groundwater vulnerability assessment index system, evaluation methods, and provide measures for the protection of groundwater resources, Guilin Zhaidi-haiyang karst groundriver system was taken as an example. According to the characteristics of the rain into ground in southwest karst area, the cover, terrain slope, landform, lithology, geological structure, groundwater depth, precipitation amount and indicators of human activities are closen to build the groundwater vulnerability assessment index system. The groundwater vulnerability within the system was assessed according to the add notes method of the groundwater quality assessment, highlighting the landforms, and geological tectonic’s influence,and the composite index method,considering the weight of each fator. According to the changes of the COD concentration of the well within the system, the groundwater vulnerability assessment results were verified.The result show that the highly vulnerable area is mainly distributed in the human living karst valleys and depressions.

Key words: groundwater vulnerability, water resources protect, karst, groundriver system

CLC Number: 

  • P641.69
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