南方某省土壤背景点的环境质量研究  

Research on Environmental Quality of Soil Background Points in a Southern Province

作　　者：刘云国[1] 彭庆庆[1,2,3] 杨朝晖[1] 罗岳平 毕军平 胡树林 

机构地区：[1]湖南大学环境科学与工程学院,湖南长沙410082 [2]湖南省环境监测中心站,湖南长沙410019 [3]国家环境保护重金属污染监测重点实验室,湖南长沙410019

出　　处：《湖南大学学报（自然科学版）》2017年第6期133-140,共8页Journal of Hunan University:Natural Sciences

基　　金：国家自然科学基金资助项目(41271332;51521006)~~

摘　　要：为了详细了解南方某省的土壤背景值,在该省共布设468个背景点.通过采集样品和实验室分析,对这些背景点的污染情况进行全面评估.本文首先针对该省不同土地利用类型分析了土壤表层的无机元素和有机污染物水平,对比了不同剖面层次上污染物分布特征,然后对土壤背景环境质量进行了评价.最后将"七五"背景值数据与本次调查数据进行成对数据t检验,得出水田和旱地背景点土壤环境质量基本保持稳定,林地的大部分无机污染物含量有所下降.本文结论对于制定该省土壤环境指标、预测土壤污染趋势,正确评价土壤环境质量有重要作用.To understand the soil background situation of a typical southern province, 468 background points were established. Through sample collection and experimental analysis, the pollution situation of these background points was comprehensively investigated. At first, this study analyzed the inorganic ele- ments and organic pollutants of different soil utilization types in this province, compared the pollutants dis- tribution characteristics of different profiles, and then evaluated the soil environmental quality of back- ground points. Finally, through t-test of thetth Five-year Period＂background data and the investigation data in this study, it is concluded that environment quality of paddy fields and dry land solid keeps stable and the inorganic pollutant content in forestry solid mostly declines.

关 键 词：背景点 土壤剖面 无机元素 有机污染物 环境评价 

分 类 号：X131.3[环境科学与工程—环境科学]