The feature of profile distribution on nonexcangeable potassium of Heilu soil

JIA Heng-yi

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The feature of profile distribution on nonexcangeable potassium of Heilu soil

- The feature of profile distribution on nonexcangeable potassium of Heilu soil
- Bulletin of Soiland Water Conservation Vol. 9, Issue 3, Pages: 45-49(1990)
- 作者机构：
  
  中国科学院水利部西北水土保持研究所
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- Published：1990
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JIA Heng-yi. The feature of profile distribution on nonexcangeable potassium of Heilu soil[J]. Bulletin of Soiland Water Conservation, 1990, 9(3): 45-49.
DOI：

JIA Heng-yi. The feature of profile distribution on nonexcangeable potassium of Heilu soil[J]. Bulletin of Soiland Water Conservation, 1990, 9(3): 45-49. DOI：

摘要

本文初步研究了黄土高原黑垆土主要亚类非代换性钾的变化、分布

表明其符合指数回归方程

是草原地带黑垆土主要特征之一。粘黑垆土剖面非代换性钾分布呈“S”型

是森林地带塿土向草原地带黑垆土、黑麻土和黑焦土过渡的森林草原地带的土壤

从形态上兼有塿土剖面非代换性钾分布某些特征

但量上有所差异。草原地带的墹地、沟掌地和川台地的黑垆土剖面非代换性钾分布具有森林草原地带黑垆土的特征。本研究从土壤非代换性钾剖面的变化为黑垆土分类和岩石地层的划分提供科学依据。

Abstract

The type of development of Heilu soil are related to nonexchangeble potassium in Heilu soil of loess region.The present paper deals with prelimiary study on the genetic characteristics and nonexchangeable potassiumof profle in major soil types of Heilu soil.The results obtained are summarized as follows:The distribution of nonexchangeable potassium on soil profile in lisht-textured soil

ortho Heilu soil and resty Heilu soil accord with expaonental equation.It is one principle feature in Heilu soil of stepperegion.The distribution of nonexchangeable potassium on profile of argillic Heilu soil is "S"formed.It is the transitional form of forest-steppe region soil from the lou soil of forest region to light textured soil or the Heilu soil rusty Heilu soil of steppe region

The form of them has some features of the distribution as nonexchangeable potassium in the lou soil profile

but the contents are different.The distribution of nonexchangeable potassium on the profile are same of on the Heilu soil of the forest-steppe region in the gully land

gully plain land and river platform of the stppe region.

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