首页 | 本学科首页   官方微博 | 高级检索  
     

流域非点源污染源解析的投影寻踪对应分析方法
引用本文:金菊良,洪天求,魏一鸣. 流域非点源污染源解析的投影寻踪对应分析方法[J]. 水利学报, 2007, 38(9): 1032-1037
作者姓名:金菊良  洪天求  魏一鸣
作者单位:合肥工业大学,土木建筑工程学院,安徽,合肥,230009;合肥工业大学,资源与环境工程学院,安徽,合肥,230009;中国科学院,科技政策与管理科学研究所,北京,100080
摘    要:为分析非点源污染物及其来源的因果关系,提出了基于加速遗传算法的投影寻踪对应分析方法(PP-CFA),并应用于流域非点源污染源解析研究中。应用结果表明:土地利用方式与流域营养物地表径流输入特征之间存在明显的3类对应关系;巢湖各主要入湖河流水中N和P营养盐分输入特征可以分为差异明显的3类;改进土地利用方式和有效控制营养盐分的输入,是减少和控制巢湖流域非点源污染的重要途径。由于PP-CFA根据一维投影值的散布图进行聚类分析,因而操作较现有方法简便,精度亦容易保证。

关 键 词:非点源污染  源解析  土地利用方式  对应分析  投影寻踪方法
文章编号:0559-9350(2007)09-1032-06
修稿时间:2006-08-30

Projection pursuit based correspondence factor analysis method of watershed non point source pollution
JIN Ju liang. Projection pursuit based correspondence factor analysis method of watershed non point source pollution[J]. Journal of Hydraulic Engineering, 2007, 38(9): 1032-1037
Authors:JIN Ju liang
Affiliation:Hefei University of Technology, Hefei 230009, China
Abstract:In order to analyze the correlation between watershed non-point source pollutions and their sources,an improved correspondence factor analysis(named PP-CFA) was proposed based on accelerating genetic algorithm and projection pursuit method.The PP-CFA was applied to analyze the watershed non-point source pollutions of the Chaohu Lake.The results show that three kinds of correspondence relationship exist between land use and trophic salt loads of surface water runoff.The inputting characteristics of trophic salts of nitrogen and phosphorus of the rivers flowing into the Chaohu Lake can be classified as three kinds.Rational utilization of the land and effective control of trophic salt input are important approaches to reduce watershed non-point source pollutants.By using clustering method of scatter plot of one-dimension projection values,PP-CFA is more convenient to operation and with higher accuracy than other existing methods.
Keywords:non-point source pollution  source analysis  type of land use  correspondence factor analysis  projection pursuit method
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《水利学报》浏览原始摘要信息
点击此处可从《水利学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号