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[1]ZHANG Pei,TIAN Fu-jiao.Regional Water Environmental Pressure Regionalization Based on GIS[J].Research of Soil and Water Conservation,2011,18(05):14-18.

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Regional Water Environmental Pressure Regionalization Based on GIS

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 18 Number of periods: 2011 05 Page number: 14-18 Column: Public date: 2011-10-20

Title:: Regional Water Environmental Pressure Regionalization Based on GIS

Author(s):: ZHANG Pei^1,2, TIAN Fu-jiao³; 1. Research Center for Environmental Policy & Planning & Assessment of Zhengzhou University, Zhengzhou 450002, China;
2. Zhengzhou University Environment Technology and Consulting Company, Zhengzhou 450002, China;
3. College of Water Conservancy & Environmental Engineering, Zhengzhou University, Zhengzhou 450002, China

Keywords:: water environmental pressure; regionalization; GIS; indicator system; clustering test

CLC:: F323.213;TP79

DOI:: -

Abstract:: The concept of water environmental pressure regionalization is defined on the basis of a large of references and the indicator system is set up basically from population pressure, social economy pressure, water resource pressure, water environmental pollution pressure, ecological environment pressure. The expression indicator database of the sub-watershed is established on the basis of sub-watershed extracted using GIS technology in Luohe and Pingdingshan as the research site, and then, population density, unit area water quantity and industrial structure are selected for regionalization indicators through the correlation analysis method. Nine kinds of clustering schemes of the study areas are built up with GIS technology, and the optimal cluster number is selected using PFS method. The optimal cluster scheme is adjusted in guarantee lake integrity basis, and finally, the study area is divided into six types of eleven regions, and the characteristic of each region is analyzed, which provides the scientific basis and decision support for making regional water environmental management objectives and measures.

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