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《Journal of Jilin University(Earth Science Edition)》 2009-01
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Transfer Behavior of Heavy Metals in Soil around Cu-Ni Mining Area in Jinchang

LI Xiao-hu1,2,3,TANG Zhong-li1,4,CHU Feng-you2,31.School of Resources and Environment,Lanzhou University,Lanzhou 730000,China2.Key Laboratory of Submarine Geosciences of SOA,Hangzhou 310012,China3.Second Institute of Oceanography,SOA,Hangzhou 310012,China4.College of Resources,Chang'an University,Xi'an 710054,China  
Transport behavior of various speciation and each chemical form of heavy metals in soil from the different field around Cu-Ni mining area in Jinchang were assessed.The results show that the mean transfer coefficient of acid-soluble/exchangeable,reducible,oxidisable and residual fraction is 0.13,0.51,0.30 and 0.54,respectively.Furthermore,transfer coefficient between total content and variable speciation including acid-soluble/exchangeable,reducible,oxidisable fraction of heavy metals are different.Transfer coefficient of total Cr is 0.65 in tailings area,but that of variable speciation is 0.26.In contrast with Cr,transfer coefficient of total Ni is 0.26,but that of variable speciation is 0.67.The similar characteristics on Pb and Zn in cultivated soil,namely,transfer coefficient of total Zn is high,but low for variable speciation,which is reversed for Pb.Transfer coefficient of total content and variable speciation in abandoned soil are low compared with above two fields soil,especially,variable speciation of Cu and Ni are not transported almost down soil profile.The transport behavior of heavy metals in soil is closely related to the distribution of chemical forms of heavy metals.The transfer coefficient of variable speciation can effectively reflect transport feature of heavy metals in soil and its potential harmfulness.
【Fund】: 甘肃省矿产资源补偿费项目(20053119);; 国家自然科学重点基金项目(40534020);; 国家海洋局第二海洋研究所基本科研业务费专项(JB0702)
【CateGory Index】: X53
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