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RESEARCHES ON SOIL ENVIRONMENTAL BACKGROUND VALUES IN TIBET
作者姓名:张晓平  科扬川
作者单位:Zhang Xiaoping(Changchun Institute of Geography,the Chinese Academy ofSciences. Changchun 130021,PRC)Ke Yangchuan(Department ofChemistry,JiLin University,Changchun 130026,PRC)
摘    要:RESEARCHESONSOILENVIRONMENTALBACKGROUNDVALUESINTIBET¥ZhangXiaoping(张晓平)KeYangchuan(科扬川)(ChangchunInstituteofGeography,theChin...


Researches on soil environmental background values in Tibet
Xiaoping Zhang,Yangchuan Ke.RESEARCHES ON SOIL ENVIRONMENTAL BACKGROUND VALUES IN TIBET[J].Chinese Geographical Science,1995,5(1):56-65.
Authors:Xiaoping Zhang  Yangchuan Ke
Institution:(1) Changchun Institute of Geography, the Chinese Academy of Sciences, 130021 Changchun, PRC;(2) Department of Chemistry, JiLin University, 130026 Changchun, PRC
Abstract:The environmental background values of 13 elements of Hg, As, Se, Cr,Mn, V, Ph, Cd, Zn, Cu, Ni, F and Co in xizang soils are obtained through analyzing and determining 205 samples of surface soils in Tibet and the final data processing. The background values of these elements are compared with those of the corresponding elements in the whole China, U.S.A. and Alaska. It is found that the background values of major elements in Tibet soils are higher than the average level of the whole China. The comparison of background values between Alska and U.S.A. shows a similar result. This is because both Tibet and Alaska have a cold climate. Meanwhile, the factor correlation analysis of 13 elements in Tibet soils, organic matter, soil granularity and pH values of Tibet soils are carried out, and R-type cluster analysis is made for these 13 elements.
Keywords:Tibet  background values  soil  R- type of cluster analysis  
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