几种土壤胶体电荷零点(ZPC)的初步研究
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:


A PRELIMINARY STUDY ON THE ZERO POINT OF CHARGE (ZPC) OF SOME SOIL COLLOIDS
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    研究土壤胶体的性质有着重要的意义,在许多土壤胶体的特性中,电化学性质是一个重要方面。大家知道,被分散在电解质溶液中的胶体颗粒,在与电解质溶液接触时,便产生了双电层,根据胶粒和溶液界面间游离电荷分布的机制,可以把土壤胶体区分为两种基本类型:(1)完全极化界面的胶体称为恒表面电荷胶体;(2)可逆界面胶体称为恒表面电位胶体[10,14]

    Abstract:

    The present paper deals with the characteristics of surface charge in zero point of charge (CPC) of certain soil colloids, and the problems of terms of the electrometric titration curves. Five soil colloids(<2u) separated from laterite, red earth, yellow brown earth, loess and black soil were used in the present study. The results obtained are summarized as follows: The magnitude of ZPC values of these samples was followed in the order of laterite (4.00),red earth (3.00), yellow brown earth (2.35),loess (2.25) and black soil (2.15). This sequence conformed to the soil zonality. The ZPC values were gradually reduced from south to north, and this tendency was related to the mineralogical composition and the content of organic matter of soils.

    参考文献
    相似文献
    引证文献
引用本文

袁朝良.几种土壤胶体电荷零点(ZPC)的初步研究[J].土壤学报,1981,18(4):345-352. Yuan Chao-liang. A PRELIMINARY STUDY ON THE ZERO POINT OF CHARGE (ZPC) OF SOME SOIL COLLOIDS[J]. Acta Pedologica Sinica,1981,18(4):345-352.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2013-02-25
  • 出版日期: