地面水水质评价的对数型幂函数普适指数公式  

Exponential Universal Formula of Power Function in Logarithm form for Ground Water Quality Assessment

作　　者：汪嘉杨[1,2] 王文圣[1] 李祚泳[2] 

机构地区：[1]四川大学水利水电学院,四川成都610065 [2]成都信息工程学院资源环境学院,四川成都610225

出　　处：《四川大学学报（工程科学版）》2011年第3期12-17,共6页Journal of Sichuan University (Engineering Science Edition)

基　　金：科技基础性工作专项基金资助项目(2009IM020100);国家自然科学基金资助项目(50739002);新世纪优秀人才支持计划资助

摘　　要：为了建立科学合理、简洁直观、普适通用和使用方便的地面水水质评价模型,在设定地面水水质指标规范变换式基础上,提出一个适用于多项指标的水质评价的对数型幂函数普适指数公式,并采用粒子群算法优化公式中的参数。将普适指数公式用于实例分析,并与其它多种评价方法评价结果对比。研究表明:该公式不受指标种类和数目限制,计算简便,具有通用性、实用性,为评价普适化、简单化提供了一条新途径。In order to propose a scientific and reasonable,simple and intuitive,and universal common model for the assessment of ground water quality,an exponential universal formula of power function in logarithm form suitable for multi-indexes was presented by setting up normalized transform for ground water indices.Particle Swarm Optimization（PSO） was used to optimize the parameters in the presented formula.The presented formula was used and compared with some methods in several evaluating cases.The results showed that the formula is free from the restrictions of the kinds and numbers of indices,which has generality and practicality,and provides a new universal and simplified approach to the water quality assessment.

关 键 词：地面水 水质评价 对数型幂函数 指数公式 普适公式 粒子群算法 参数优化 

分 类 号：X824[环境科学与工程—环境工程]