基于生态系统的水环境压力分区指标体系构建

为了科学合理的完成水环境压力分区,构建水环境压力分区指标体系是其关键和基础.鉴于水环境压力涉及因素的系统性.相互联系性,从生态系统的角度考虑选取水环境压力分区指标十分必要；由于水环境压力涉及方面的相互联系性,其表征指标之间往往存在信息量的重叠,为了避免信息的重复表达,减少不必要的工作量,同时避免冗余指标带来的干扰,需对...

Indicator System Construction of Water Environment Pressure Zoning Based on Ecosystem

To scientific and rational complete water environment pressure zoning,it is the key and foundation to build the indicator system of water environment pressure zoning.Considering systemic and interconnectedness of water environment pressure involving,it is necessary to select indicator of water environment pressure zoning from ecosystem perspective.As the interconnectedness of water environment pressure involving and overlap of information in the characterization indicators,in order to avoid repeated expression of information,reduce unnecessary workload and avoid interference caused by redundant indicators,indicators were filtered and main representative indicators were selected.Accordingly principles of indicators selecting and a route of zoning indicator system were developed,zoning indicator system framework was established by frequency statistics,theoretical analysis,correlation analysis and variability analysis method.The indicator selection of water environment pressure zoning for Luohe,Pingdingshan was completed,with indicators of population density,water resource per unit area and industrial structure as zoning indicators,which reflect better natural and man-made elements of water environment pressure.