Inquire into the Profile Distribution Model and Toxonomic Classification of Nonexchangeabl a Potassium of the Tier Soil

Jia Hengyi; Yong Shaoping; Tian Jiying

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Inquire into the Profile Distribution Model and Toxonomic Classification of Nonexchangeabl a Potassium of the Tier Soil

- Inquire into the Profile Distribution Model and Toxonomic Classification of Nonexchangeabl a Potassium of the Tier Soil
- Bulletin of Soiland Water Conservation Vol. 13, Issue 3, Pages: 52-58(1994)
- 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：1994
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Jia Hengyi, Yong Shaoping, Tian Jiying. Inquire into the Profile Distribution Model and Toxonomic Classification of Nonexchangeabl a Potassium of the Tier Soil[J]. Bulletin of Soiland Water Conservation, 1994, 13(3): 52-58.
DOI：

Jia Hengyi, Yong Shaoping, Tian Jiying. Inquire into the Profile Distribution Model and Toxonomic Classification of Nonexchangeabl a Potassium of the Tier Soil[J]. Bulletin of Soiland Water Conservation, 1994, 13(3): 52-58. DOI：

摘要

土非代换性钾在剖面分析特征，拟合是一个非线性方程，并以此可对土进行初步的系统分类，初拟对5个剖面可分为三个类型。图中A部位反映了土肥熟堆垫表层（或者化过程）中土壤非代换性钾的变化状态，表现为耕作层（现代）高，以下土层则逐渐降低，这和肥熟堆垫过程，栽培作物的吸收，迁移和富集等土壤生态环境有关。也表明了在植物参与下土剖面的非代换性钾耗竭、富集与成壤过程的同步性和异空间性。

Abstract

The profile distribution of the tier soil nonexchangeable potassium was characterized by following nonlinear equation:y=aebx(c+dcos2π(xe)/f).Premumarily toxonomic ciassmcation was carried out by use of the equation on which five profiles of tier soil was divided into three types. The part Tabled A in figure reflected changes of nonexchangeable potassium in the fimic cumulic epipeden or tieric process of the tier soil. The content of nonexchangeable potassium is high in cultivated orizon and lower with the increase of deepth in the soil profile

which is elated to the fimic cumulic process

plant uptake

potassium migration and eutrophlcation

and the other eco-environment factors. The results also indicated the synchronism and other space property between the exhaustion

accumulation of nonexchangeable pofassium and soil formation process with the participation of plants.

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