中国东部玄武岩地区母岩及土壤元素含量变化规律研究

本文通过对中国东部玄武岩地区14个土壤剖面,70个土壤样品的数据分析,总结了该地区土壤元素含量值的区域差异。与世界土壤相比,该地区土壤中大部分元素含量偏高。元素相互之间存在着较好的相关性,且大部分达到极显著水平。 本文指出在玄武岩上的各类土壤中,由于由此向南风化及成土过程的加强,许多微量元素含量伴随氧化铁富集而增加的规律。还讨论了土壤元素含量的高低及变化规律的影响因素。

STUDY ON THE REGULARICY OF CHANGES OF CONTENTS OF THE PARENT ROCK AND SOIL ELEMENTS IN THE BASACT REGIONS, EASTERN CHINA

This paper has summarized the regional differences of contents of the soil element in the basalt regions of East China through an analysis of the data of 14 soil profiles and 70 soil samples, in comparison with the soil parts of the world, it is found that the contents of most elements in the soil of East China are somewhat greater, the correlation among the elements is relatively good, and most of them reach very obvious level.This paper points out the regularity that in soils on basalt, due to the enhancement, of the weathering and soil formation processes from the morth to the south, many micro-ele-meents are increased with the enrichment of ferric oxide it also discusses the influential factors of the size and the regional difference of conlents of the soil element and indicates that in soils developed from basalt parent material the contents of most micro-elements are obviously affected and controlled by the parent rock, and that their regional differences and distribution characteristics in soil profiles from the morth to the south are due to the different influences of the biological by the differences of latitude.