自然资源学报

自然资源学报 ›› 2004, Vol. 19 ›› Issue (2): 195-200.doi: 10.11849/zrzyxb.2004.02.009

• 资源生态 • 上一篇    下一篇

黄土高原人工林土壤水分效应的地带性特征

陈云明, 刘国彬, 杨勤科   

  1. 中国科学院、水利部、西北农林科技大学水土保持研究所,陕西杨凌712100
  • 收稿日期:2003-09-15 修回日期:2003-10-24 出版日期:2004-04-25 发布日期:2004-04-25
  • 作者简介:陈云明(1967～)男，陕西澄城人，副研究员，博士，研究力向为森林水文生态作用E-mail: ymchcm@ms.iswc.ac.cn
  • 基金资助:

    中国科学院知识创新重要方向项目(KZCX3-SW-421);国家“十五”科技攻关项目(2001BA508B17)资助。

Zonal characteristics of artificial forest effecting soil moisture on Loess Plateau

CHEN Yun-ming, LIU Guo-bin, YANG Qin-ke   

  1. Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Norhwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi712100,China
  • Received:2003-09-15 Revised:2003-10-24 Online:2004-04-25 Published:2004-04-25

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被引次数

106 | 24

摘要： 为提高黄土高原人工植被建设成效,依据天然植被呈地带性分布的规律,对比分析不同地带人工林与天然植被对土壤水分利用的差异。结果表明:不同植被地带的人工林下均存在一定程度的水分亏缺和干化层现象,其严重程度为森林带<森林草原带<典型草原带。森林带的水分条件可满足林木成材对水分的需求,林木采伐后土壤水分可得到很好恢复;森林草原带可满足10龄以下林木生长对水分需求,10龄以上林分的水分亏缺严重,林木采伐后土壤水分恢复进程缓慢;典型草原带不能满足人工林生长对水分需求。在此基础上,提出了与地带性水分条件相适应的人工林草植被建设模式。

关键词: 土壤水分, 地带性特征, 对比分析, 人工林

Abstract: Vegetation construction is one of the major measures to improve eco-environment of Loess Plateau.In order to improve the effectiveness of artificial vegetation construction,comp-arative analysis of the difference between artificial forest and natural vegetation was carried out using soil moisture data according to the distributive law of natural vegetation.The results showed there are different soil moisture deficit s and soil dry-layers under artificial forests of different vegetation zones,the order of serious degree is forest zone

Key words: soil moisture, zonal character, comparative analysis, artificial forest