廊坊地区土壤重金属存在形态及有效性分析  

Soil Heavy Metal Existence Form in Langfang Area and Its Validity Analysis

作　　者：蔡奎[1] 栾文楼[1] 宋泽峰[1] 李超[1] 陈智贤[1] 谷海峰[1] 

机构地区：[1]石家庄经济学院资源与环境工程研究所,河北石家庄050031

出　　处：《现代地质》2011年第4期813-818,共6页Geoscience

基　　金：河北省政府与中国地质调查局合作项目"河北省农业地质调查项目"(200414200007)

摘　　要：通过对廊坊39个样点根系土中As、Cd、Cr、Hg、Pb共5种重金属元素各形态含量的统计与分析,总结出该区根系土重金属元素形态组成特征,初步分析了各重金属元素在土壤中的地球化学行为。运用相关性分析方法,对5种重金属元素有效态含量与全量及土壤pH、TOC的相关性进行分析。根据分析结果,重金属元素有效态含量的高低不仅受其全量的影响,而且与土壤pH、TOC亦有着密切关系。该结论为评估廊坊表层土壤重金属元素污染程度提供了理论依据。According to the statistics and analysis on contents of 5 kinds of heavy metal elements such as As,Cd,Cr,Hg and Pb under different forms from 39 samples of root soil in Langfang area,this paper sums up the characteristics of form composition,and analyzes the geochemical behavior of the heavy metal elements in the root soil preliminarily.By using the correlation analysis method,the effective form contents and total contents of 5 kinds of heavy metal elements,pH and TOC of the soil are analyzed to come to a conclusion that the effective form contents of heavy metal elements are not only effected by the total contents,but also closely related to pH and TOC in soil,which provides theoretical basis for studying pollution degree of heavy metal elements of surface soil in Langfang area.

关 键 词：根系土 重金属 存在形态 有效性 廊坊 

分 类 号：S153[农业科学—土壤学] X142[农业科学—农业基础科学]