摘要
华南红土从岩石到表土，普遍表现为微量元素B、Mo、Pb、Zn、As和Cr都有不同程度的富集。同族微量元素相比，原子量小的元素含量大于原子量大的元素。偶数微量元素含量均高出奇数的2～10倍。从空间上看，以上表生地球化学特征、红土化学成分、淋溶系数、土壤湿度和土壤温度等环境因素均受母岩和气候纬度效应制约。相关分析表明，华南红土中的水含量和土壤温度均与Cr、As等含量呈正相关。初步研究表明，华南红土微量元素的表生地球化学特征和环境效应特征，是全球变化事件在华南红土地区的具体响应。
Analysis results of rock and soil in Southern China show the concentration of trace elements which include,B, Mo,Pb,Zn,As,Cr. In the same group, the contents of trace elements with higher atomic weight are more than the others. The contents of trace elements with even atomic number are 2 -10 times higher than those with odd atomic, From space, supergenic geochemistry, Filtering and precipitation coefficient of red soil chemistry compositions, moisture and temperature of red soil are influenced by parent rock and climate latitudinal effect. Correlation analyses suggest a positive correlation between water content, soil temperature and contents of Cr, As in red soil. Supergenic geochemistry characteristic and environment effect of trace elements of red soil are a response to long - time and much global change circumstances in the red soil region of Southern China.
出处
《农机化研究》
北大核心
2008年第6期126-130,共5页
Journal of Agricultural Mechanization Research
基金
中科院创新项目(KZCX3-SW-152)
国家重大基础研究前期研究专项(2003CCA00100)
国家基金重点项目(40331009,40072-57)
中科院广州地化所创新项目(GIGCX-03-05,GIGCX-04-01)
关键词
华南红土
微量元素
表生地球化学特征
环境效应
red soil of Southern China
trace elements
supergenic geochemistry
environmental effects
作者简介
苗莉（1980-），女，济南人，博士研究生，（E-mail）mli@gig．ac．cn。
