• 责任者：Liao Qilin (Geological Survey of Jiangsu Province ; Nanjing 210018 ; China) ; Liu Cong
• 刊名：Quaternary Sciences
• 出版年：2013
• 卷期：33(5)
• 关键词：土壤污染 ; soil pollution ; 人类活动 ; human activity ; 江苏 ; Jiangsu Province
• 页码：p.972-985
• 图表：5 illus., 4 tables, 51 refs.
• 分类号：1800
• issnNo：ISSN1001-7410
• isbnNo：CN11-2708/P

     Whole multi-target regional geochemistry survey of 1：250000 on Quaternary sediments had been accomplished in Jiangsu Province by 2007,and a large number of geochemical data from soil samples have been obtained.As the first eco-geochemical surveying harvest covering a provincial whole land in China,its further research has been regarded very highly.In this paper,elements concentration and its distribution in typical sedimentary profiles of soil and relevant eco-geochemical surveying data have been studied.These data are from 24186 top-soil samples and 6127 deep-soil samples,and every samples tested total contents of 52 elements,including Si,Al,Mg,Ca,Fe,K,Na,C,N,P,S,Se,B,Mn,Ti,V,Co,Cr,Ni,Cu,Pb,Zn,Cd,As,Sb,Bi,Hg,Mo,W,Sn,Ag,Au,Sr,Ba,La,Ce,Y,Sc,Zr,Th,U,Ga,Ge,Tl,Li,Be,Rb,Nb,F,Cl,Br and I,pH and total organic carbon（TOC）,in total 54.The above stated samples are evenly distributed in whole soil,and there is a sample within per 4km2 scopes in top-soil and its sampling depth is 0-20cm,yet there is a sample within per 16km2 scopes in deep-soil and its sampling depth is 150-200cm.The present study summarizes distributive characteristics of relevant elements within soil from different areas of Jiangsu Province,calculates and analyses typical elements enriched factors （EFs） in surface environmental soil,describes anthropogenic environmental enrichment phenomenon of some elements so Cd,Hg,Se,S,C,and so on,discusses effects of artificial activities on soil element distribution,and induces or sums up causes of anthropogenic environmental enrichment of typical elements in soil.From the study,the following conclusions can be made： 1）following typical elements formed significant anthropogenic environmental enrichment and soil acidification,as Cd,Se,S,Hg,Sn,C,N,P,Br,Pb,Zn,Sb,Bi,Au,Cu,Cl,TOC,etc;2）Cd,Se,Hg,Sn,Br,N,S,C,P,TOC,pH,Pb and Zn are the most sensitive tracer or characteristic indicator reflecting human activities effect to elemental distribution in soil,enriched depths of these elements are not beyond 40cm in the edaphic sedimentary column at most cases,and their distributions are normally uneven in soil and the varied coefficients（Cv）of elements content are larger than 0.5.The above stated 13 indicators can be used as a long-term study of human activities on soil environment influence in the Jiangsu Province;3）above 50% of the samples show enriched factors（EFs）in anthropogenic environmental soil are larger than 2.0 as to the following elements,for N,S,TOC,Hg,Se,Br,etc.There are higher proportion polluted by Cd,Hg and Pb in soil around some large city;and 4）there are obvious positive correlated relationship between the population density and mean anthropogenic environmental added content of Se,Hg,Cd and S（or so mean ΔSe,ΔHg,ΔCd and ΔS;Δ=topsoil-deep soil）in soil from 13 cities of the Jiangsu＇s,the Jiangsu＇s administrative areas consist of 13 cities including Nanjing City,Suzhou City,Wuxi City,Changzhou City,Zhenjiang City,Yangzhou City,Taizhou City,Nantong City,Yancheng City,Huai＇an City,Suqian City,Xuzhou City,and Lianyungang City,and this pertinence pointed out impact on edaphic environmental evolution in recent industry development because of consuming coal resources on a large scale.Furthermore,with the enforcement of artificial activities on soil environment,the effect and significance related to elemental anthropogenic environmental enrichment will become more and more obvious and important in soil.