Effects of Soil Physical Properties on Nutrient Transport Velocity in Loess Plateau

WANG Yi; LIU Jun; WANG Yi-quan

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Effects of Soil Physical Properties on Nutrient Transport Velocity in Loess Plateau

- Effects of Soil Physical Properties on Nutrient Transport Velocity in Loess Plateau
- Bulletin of Soiland Water Conservation Vol. 24, Issue 4, Pages: 20-23(2005)
- 作者机构：
  
  西北农林科技大学资源环境学院 , 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2005
- 稿件说明：
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WANG Yi, LIU Jun, WANG Yi-quan. Effects of Soil Physical Properties on Nutrient Transport Velocity in Loess Plateau[J]. Bulletin of Soiland Water Conservation, 2005, 24(4): 20-23.
DOI：

WANG Yi, LIU Jun, WANG Yi-quan. Effects of Soil Physical Properties on Nutrient Transport Velocity in Loess Plateau[J]. Bulletin of Soiland Water Conservation, 2005, 24(4): 20-23. DOI：

摘要

采用一维饱和稳定流易混置换试验

用Cl

和K

为对象模拟黄土高原地区4种典型土壤对养分运移阻滞因子R的影响。试验结果表明对于不同质地的土壤

随着土壤质地变细

运移阻滞因子增大;对于同种质地土壤

随着容重增加

运移阻滞因子增大;对于同种质地而粒级不同的土壤

运移阻滞因子随着粒级的增大而增大;受土壤排斥的离子较受土壤吸引的离子容易穿透土壤。

Abstract

The effects of soil physical properties

such as texture

bulk density and particle-size on nutrient transport velocity are studied by one-dimensional saturated steady flow experiments.The results showed that the retardation factor R increased with the increase of the clay content.R increased as bulk density increased in the same soil.R also increased with particle2size at different treatments.The repellent nutrient broke through soil column more easily than the reactive nutrient.

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