| 我国北部草原系列土壤中成土作用对微量元素含量影响的经向分异 |
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| 引用本文： | 陶澎,林春野,冯泉.我国北部草原系列土壤中成土作用对微量元素含量影响的经向分异[J].土壤学报,1995,32(2):126-131. |
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| 作者姓名： | 陶澎 林春野 冯泉 |
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| 摘 要： | 根据我国北部草原系列土壤中１０种微量元素的实测结果，用方差分析和多重比较方法研究了母质和土类因素对该地区土壤微量元素含量的影响。并以主成分得分的调整独立方差为依据，探讨了成土作用对土壤微量元素含量影响的方向，强度及地域分异特征。研究结果证实，不同母质和土类单元草原土壤中微量元素含量有明显差异，其中母质单元间的差别尤为显著，影响草原土壤表层微量元素含量的主要成土因素包括两种类型：导致元素含量下降的淋
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| 关 键 词： | 草原土壤 微量元素 成土作用 方差分析 多重分类 |
REGIONAL VARIATIONS IN INFLUENCE STRENGTH OF SOIL FORMATION PROCES ON TRACE ELEMENT CONTENTS IN SOILS FROM NORTHERN CHINA |
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| Tao Shu,Lin Chunye and Feng Quan.REGIONAL VARIATIONS IN INFLUENCE STRENGTH OF SOIL FORMATION PROCES ON TRACE ELEMENT CONTENTS IN SOILS FROM NORTHERN CHINA[J].Acta Pedologica Sinica,1995,32(2):126-131. |
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| Authors: | Tao Shu Lin Chunye and Feng Quan |
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| Abstract: | The contents of ten trace elements in soils from northern China were determined. The effects of parent material and soil types on the element abundances were investigated statistically by the methods of ANOVA and multiple classification. The adjusted independent variances, calculated based on the factor score, were computed to describe the influence of soil formation processes on the contents and distribution of the trace elements in the soils.The significant differences in element abundances among various types of soil and among soils derived from various types of parent materials, especially the latter, were observed. The soil formation processes related to element content might be categorized as a) the leaching process, and b) formation of clay, biological absorption, and humification. The influence directions of the two kinds of processes are different, but the strengths of them sll decreased from east to west at the same time. The leaching tendencies of trace elements from east to west, therefore, decreased first and then increased, due to the co-effects of the two kinds of the processes. The majority of elements including copper, nickel and chromium was characterized by leaching during the formation of soil, while significant influences of the second kind; of processes were noticed for manganese and zinc. |
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| Keywords: | Soil Trace element ANOVA Multiple classification |
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