Application of the Risk‐Based Early Warning Method in a Fracture‐Karst Water Source, North China. (1st March 2018)

• Record Type: Journal Article
• Authors: Guo, Yongli; Wu, Qing; Li, Changsuo; Zhao, Zhenhua; Sun, Bin; He, Shiyi; Jiang, Guanghui; Zhai, Yuanzheng; Guo, Fang
• Is Part Of: Water environment research. Volume 90:Number 3(2018)
• Page Start: 206
• Page End: 219
• Publication Date: 2018-03-01
• Subjects: Fracture‐karst aquifer -- North China -- risk‐based early warning method -- extension theory; Water quality management -- Periodicals; Water -- Purification -- Periodicals; Water -- Pollution -- Periodicals; Water -- Pollution; Water -- Purification; Water quality management; Sewage; Water Pollution; Periodicals; Electronic journals; Periodicals; 628.16
• DOI: 10.2175/106143017X15131012152771
• Languages: English
• ISSNs: 1061-4303

Abstract

ABSTRACT: : The paper proposes a risk‐based early warning considering characteristics of fracture‐karst aquifer in North China and applied it in a super‐large fracture‐karst water source. Groundwater vulnerability, types of land use, water abundance, transmissivity and spatial temporal variation of groundwater quality were chosen as indexes of the method. Weights of factors were obtained by using AHP method based on relative importance of factors, maps of factors were zoned by GIS, early warning map was conducted based on extension theory with the help of GIS, ENVI+IDL. The early warning map fused five factors very well, serious and tremendous warning areas are mainly located in northwest and east with high or relatively high transmissivity and groundwater pollutant loading, and obviously deteriorated or deteriorated trend of petroleum. The early warning map warns people where more attention should be paid, and the paper guides decision making to take appropriate protection actions in different warning levels areas.