摘要
为了确定泰州市土壤和农产品的重金属污染状况以及产地环境的质量状况,在研究区内共布设370个采样点,分别对土壤和农产品(水稻和小麦)中Cr、Pb、Cd、As、Hg 5种重金属进行检测、分析,运用内梅罗综合污染指数法对土壤和农产品的重金属污染状况进行评价,最后选取土壤重金属综合污染指数、水稻重金属污染指数、小麦重金属污染指数以及水稻产量、小麦产量作为分区指标,采用聚类分析的方法对泰州市产地环境进行分区。结果表明,土壤样品中有1.08%的样点受到重金属污染,水稻中有11.46%的样点受到重金属污染,小麦中有21.33%的样点受到重金属污染。泰州市产地环境共分为优质产区、良好产区、中等产区、一般产区、较差产区5种类型,其中优质产区占区域总面积的12.16%,良好产区占58.38%,中等产区占12.16%,一般产区占15.14%,较差产区占2.16%。总之,泰州市小部分区域存在土壤和农产品重金属污染,污染情况较轻,大部分区域的产地环境处于良好级别以上。
In order to determine the heavy metal pollution of soil and agricultural products in Taizhou and the quality of producing area environment,a total of 370 sampling sites were set up the research area.Five heavy metals,Cr,Pb,Cd,As and Hg,were detected and analyzed in soil and agricultural products(rice and wheat),and heavy metal pollution in soil and agricultural products was evaluated by the Nemero comprehensive pollution index method.Finally,the comprehensive pollution index of soil heavy metals,rice heavy metal pollution index,wheat heavy metal pollution index,rice yield and wheat yield were selected as the zoning index.Results showed that 1.08%of soil samples,11.46%of rice samples,21.33%of wheat samples were contaminated with heavy metals.The producing area Taizhou was divided into five types:high-quality production areas,good production areas,medium production areas,general production areas,and poor production areas.Among them,high-quality production areas accounted for 12.16%of the total area,good production areas accounted for 58.38%,medium production areas accounted for 12.16%,general production areas accounted for 15.14%,and poor production areas accounted for 2.16%.In conclusion,a small part of Taizhou is polluted by heavy metal in soil and agricultural products,and the pollution situation is light.in addition,the producing area environment in most areas of Taizhu is above a good level.
作者
方明星
黄康伦
李颖慧
姜小三
FANG Ming-xing;HUANG Kang-lun;LI Ying-hui;JIANG Xiao-san(Taizhou Academy of Nanjing Agricultural University,Taizhou 225311,China;College of Resources and Environmental Sciences,Nanjing Agricultural University,Nanjing 210095,China;Taizhou Municipal Bureau of Agricultural and Rural Affairs,Taizhou 225300,China)
出处
《江苏农业学报》
CSCD
北大核心
2019年第6期1476-1483,共8页
Jiangsu Journal of Agricultural Sciences
基金
2018年泰州市政府农业科技推广项目(南京农业大学泰州研究院专项资金)
江苏省农产品产地环境安全智慧管控系统项目(JSZC-G2015-039)
关键词
产地环境
重金属
污染评价
分区
producing area environment
heavy metal
pollution assessment
partition
