生态与农村环境学报2011,Vol.27Issue(5):79-85,7.
基于指标规范变换的生态环境质量评价普适指数公式
Universal Index Formulae for Eco-Environment Quality Assessment Based on Normalized Index Transformation
摘要
Abstract
In order to establish universal index formulae, which should be scientific, reasonable, simple and practical in application to eco-environment quality assessment, based on determination of the eco-environment assessment index systems and grading standards for typical regions, proper reference values and transformation formulae were set for each eco-environment index, separately, so as to minimize differences of the transformation values, especially logarithmic values of the transformation values from the standard values of different indexes of the same grade. Thus, the various indexes expressed by transformation values can be held to be equivalent to a certain index. Therefore, various types of eco-environment quality assessment index formulae with transformation values expressing various indices can all be replaced by eco-environment quality assessment index formulae of corresponding " equivalent" indices. Meanwhile universal parameters in each formula were optimized repeatedly with the immune evolutionary-particle swarm optimization-shuffled frog leaping algorithm under the condition that certain optimization objective criteria were satisfied. As a result, 5 forms of eco-environment quality assessment universal index formulae were gained, I. E. Logarithmic power function, Weber-Fechner law, T distribution function, pollution harm S-type function and weighted additive power function, which are applicable to 23 I-tems of eco-environment indices after optimization. Furthermore, reliabilities of 5 formulae were analyzed theoretically and tested by practice.关键词
指标/规范变换/生态环境质量评价/普适性/指数公式Key words
index/ normalized transformation/ ecology environment quality assessment/ universality/ index formula分类
资源环境引用本文复制引用
张正健,李祚泳,余春雪..基于指标规范变换的生态环境质量评价普适指数公式[J].生态与农村环境学报,2011,27(5):79-85,7.基金项目
科技基础性工作专项(20091M020100) (20091M020100)
国家自然科学基金(50779042,50739002) (50779042,50739002)