Effects on Soil Fertility in Different Types of Forest on Loess Plateau

ZHANG Jing; CHANG Qingrui

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Effects on Soil Fertility in Different Types of Forest on Loess Plateau

- Effects on Soil Fertility in Different Types of Forest on Loess Plateau
- Bulletin of Soiland Water Conservation Vol. 25, Issue 3, Pages: 26-28(2006)
- 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：
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- Published：2006
- 稿件说明：
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ZHANG Jing, CHANG Qingrui. Effects on Soil Fertility in Different Types of Forest on Loess Plateau[J]. Bulletin of Soiland Water Conservation, 2006, 25(3): 26-28.
DOI：

ZHANG Jing, CHANG Qingrui. Effects on Soil Fertility in Different Types of Forest on Loess Plateau[J]. Bulletin of Soiland Water Conservation, 2006, 25(3): 26-28. DOI：

摘要

研究了渭北黄土高原侧柏、刺槐人工纯林及其混交林对土壤的培肥效应。结果表明:在黄土高原地区

种植人工林后能增强土壤腐殖化作用

促进土壤有机质的形成发育

对土壤的有机质、全氮、全磷、及碱解氮、速效钾等营养元素含量提高有很大帮助。不同林型植被

土壤的腐殖化作用有明显差异

土壤有机质、各营养元素和阳离子交换量增加不同

除全钾、速效磷以外

表现为刺槐侧柏混交林>刺槐>侧柏>荒地。固氮树种与非固氮树种混交栽植对土壤肥力质量的提高较纯林栽植效果显著。因此在退耕还林时

避免营造单一树种纯林

应该以固氮树种为主

合理搭配非固氮树种

混交栽植。

Abstract

The improving effects of Platycladus orientalis

Robinia pseudoacacia and the two mixed plantations on soil fertility on the Loess Plateau were investigated.In the Loess Plateau area

planting plantation had much help for the improvement of the nutritional element content

such as soil organic matter

total nitrogen

total phosphorus

available nitrogen and quick-acting potassium

and different plantations had different enhancement degrees.Except total potassium and quick-acting phosphorus

every target in nitrogen fixation plantation was higher than that in non-nitrogen fixation plantation.In general

the enhancement of soil fertility in nitrogen fixation plantation is more remarkable than that in non-nitrogen fixation plantation.

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Related Institution

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