基于统计分析和BP网络的土壤重金属污染研究  

Study on the Pollution of Heavy Metal in Soil Based on Statistical Analysis and BP Network

作　　者：孙娓娓[1] 黄映雪[1] 张杰[1] 胡业刚[1] 

机构地区：[1]阜阳师范学院数学与统计学院,安徽阜阳236041

出　　处：《山东农业大学学报（自然科学版）》2016年第4期536-539,共4页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：安徽高校自然科学研究项目(2015KJ003;KJ2015A161);安徽省自然科学基金(1508085MA12);全国统计科学研究项目(2014LY088);安徽省质量工程项目(2015jxtd023;2015jxtd121);阜阳师范学院自然科学研究项目(2015FSKJ07)

摘　　要：土壤中重金属不仅对植物生长造成影响,还通过食物链危害人类健康,并可能造成大气和水污染等问题,影响和改变城市土壤的生态功能。因此,为了改善生活环境,彻底解决污染问题,就必须找出重金属污染的原因。本文通过污染指数评价、统计相关分析、BP网络空间插值等方法建立数学模型,得到了土壤重金属污染程度、原因及污染源位置,为环境保护和城市发展提供重要依据。Heavy metals in soil not only affect the growth of plants but also harm to people＇s health through a food chain, andmay cause the problem such as air and water pollution to influence the ecological function of urban soil. Therefore, in orderto improve the living environment and solve the pollution problem thoroughly, we must find out the cause of the heavy metalpollution. In this article, the mathematical model was established through pollution index evaluation, statistical analysis, BPnetwork spatial interpolation. The soil heavy metal pollution degree, reason and pollution source location are obtained. Itprovides important basis for environmental protection and urban development.

关 键 词：重金属污染 污染指数 相关分析 BP网络 

分 类 号：O29[理学—应用数学]