摘要
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,需对指标进行筛选,选取主要代表性指标。据此,针对分区指标的选取设置了指标选取原则,并制定了分区指标体系构建路线,运用频度统计、理论分析、相关分析和变异性分析等方法,建立了分区指标体系框架,并以漯河、平顶山地区为研究对象,完成了研究区域的水环境压力分区指标筛选,选取了人口密度、单位面积水资源量和产业结构3个指标作为分区指标,选取的这3个指标较好地体现了水环境压力的自然和人为影响要素。
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.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2011年第10期191-195,共5页
Environmental Science & Technology
基金
国家流域水生态功能分区与水质目标管理技术项目(2008ZX07526-002-03)
关键词
水环境压力
分区指标体系
指标筛选
water environment pressure
zoning indicator system
indicator selection
