山东省高密市表层土壤元素地球化学组合特征及意义

Geochemical characteristics and significance of surface soil elements in Gaomi city,Shandong province

以高密市表层土壤测量获得的22项指标为基础,利用SPSS软件对检测结果进行聚类分析和因子分析,结果基本吻合,第一群组为Co、Ni、Cr、V、Mn元素组合,它们主要与研究区地质背景密切相关;第二群组为有机质、N、P元素组合,它们同属腐泥质元素,是腐殖质的主要组成部分;第三群组为Mo、Se、Cd、Pb元素组合,它们主要与人类活动产生的污染有关;第四群组为Cu、Zn元素组合,它们主要与人类活动和农业施肥有关;第五群组为pH、F组合,它们主要受研究区地质背景和F的迁移、聚集影响;I、B、Ge、As、K、Hg与其他元素相关性差,各自形成单元素组,其中I、B、Ge、K等营养类元素主要与各自的地球化学性质有关,As、Hg两个重金属类元素则可能与人类活动产生的污染有关。

Based on 22 indexes obtained from surface soil in Gaomi,the SPSS was used to analyze the test results.The results of cluster and factor analyses are similar.The first group is Co,Ni,Cr,V,and Mn,which is closely related to the geological background of the study area.The second group is Organic matter,N,and P,which are sapropelic elements.They are the main components of humus.The third group is Mo,Se,Cd,and Pb,which is related to the pollution caused by human activities.The fourth group is Cu,and Zn,which is related to human activities and agricultural fertilization.The fifth group is pH,and F,which is affected by the geological background of the study area and the migration and accumulation of F.The elements of I,B,Ge,As,K and Hg are single groups,which are mainly related to their geochemical characteristics.As and Hg may be related to human activities.