首页 | 本学科首页   官方微博 | 高级检索  
     检索      

渭北黄土高原不同林型植被对土壤肥力的影响
引用本文:张静,常庆瑞.渭北黄土高原不同林型植被对土壤肥力的影响[J].水土保持通报,2006,26(3):26-28,62.
作者姓名:张静  常庆瑞
作者单位:西北农林科技大学,资源环境学院,陕西,杨凌,712100
基金项目:教育部科学技术研究项目;国家自然科学基金;广西自然科学基金
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。

关 键 词:黄土高原  人工纯林  混交林  土壤肥力  培肥效应
文章编号:1000-288X(2006)03-0026-03
收稿时间:2005-08-12
修稿时间:2005-08-12

Effects on Soil Fertility in Different Types of Forest on Loess Plateau
ZHANG Jing and CHANG Qingrui.Effects on Soil Fertility in Different Types of Forest on Loess Plateau[J].Bulletin of Soil and Water Conservation,2006,26(3):26-28,62.
Authors:ZHANG Jing and CHANG Qingrui
Institution:College of Resources and Environment, Northwest University of Agriculture and Forestry, Yangling 712100, Shaanxi Province, China
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.
Keywords:Loess Plateau  pure plantation  mixed plantation  soil fertility  improvement effect to soil fertility
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《水土保持通报》浏览原始摘要信息
点击此处可从《水土保持通报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号