安徽宿州地区石灰岩-土壤元素迁移及质量评价  

Evaluation and movement of elements in limestone-soil from Suzhou area,Anhui Province

作　　者：陈松[1,2] 桂和荣 孙林华[1,2] 

机构地区：[1]宿州学院地球科学与工程学院,宿州234000 [2]安徽省煤矿勘探工程技术研究中心,宿州234000

出　　处：《环境化学》2013年第6期987-992,共6页Environmental Chemistry

基　　金：国家自然科学基金(41173106);安徽省教育厅自然科学项目(KJ2013B289);宿州学院科研平台开放课题(2013YKF01;2011YKF22)资助

摘　　要：通过野外采样及室内分析测试,对宿州石灰岩土壤质量状况、成土作用过程中元素迁移规律及影响因素进行研究.结果表明,宿州地区石灰岩土壤P、Sr较缺乏,K、Ca、Fe、Mn和Cu含量丰富,S、Zn含量适中;在岩石-土壤作用过程中,Ca、Cu和Sr元素亏损,其他元素全部富集;主成分分析提取4个主成分,解释累计总方差77.03%,其中元素Si、Zr、Ca、Ti、Al、K、Mn主要受控于自身化学行为(PC1);Rb、Fe、V、Th、Cr主要受区域环境影响(PC2);PC3和PC4分别对元素Pb、Sr、As和Cu、Zn有较高的贡献,暗示此两种因素为后期人类活动.Based on field sample collection and laboratory analysis,the characteristics of soil quality,as well as the movement of elements between limestone and soil and its characteristics were investigated.The results showed that the elements which indicated soil fertility in limestone soils can be divided into three types： P and Sr are lacking,K,Ca,Fe,Mn and Cu are rich,and S and Zn are average;Ca,Cu and Sr are deficient in the movement from source rock to soil.However,the other elements are enriched.Four components accounted for 77.03% of the total variance,which showed that Si,Zr,Ca,Ti,Al,K and Mn were dictated by the chemistry behavior（PC1）,while Rb,Fe,V,Th and Cr were clearly influenced by the region-environment（PC2）.The third（PC3） and fourth factors（PC4） had significant contribution to elements Pb,Sr,As and the Cu,Zn,respectively,suggesting PC3 and PC4 were related to human activities.

关 键 词：元素迁移 土壤 评价 宿州 主成分分析 

分 类 号：X144[环境科学与工程—环境科学]