[1]易亮,李凯荣,张冠华,等.黄土高原人工林地土壤水分亏缺研究[J].西北林学院学报,2009,24(05):5.
 YI Liang,LI Kai-rong,ZHANG Guan-hua,et al.Soil Moisture Deficit in Artificial Forest Land in Loess Plateau[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2009,24(05):5.
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黄土高原人工林地土壤水分亏缺研究 ()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第24卷
期数:
2009年05期
页码:
5
栏目:
森林生物学
出版日期:
2009-09-30

文章信息/Info

Title:
Soil Moisture Deficit in Artificial Forest Land in Loess Plateau
作者:
易亮; 李凯荣; 张冠华; 牛俊
西北农林科技大学,资源环境学院,陕西,杨陵,712100
Author(s):
YI Liang; LI Kai-rong; ZHANG Guan-hua; NIU Jun
关键词:
黄土高原 土壤水分 水分亏缺度 人工林地
分类号:
S714.5
文献标志码:
A
摘要:
在对黄土高原林地土壤水分有效性分级的基础上,提出了林地土壤水分亏缺的评价方法与标准.分析和评价黄土高原人工林地土壤水分亏缺变化及其亏缺度,对于调控水分关系,解决水分供需矛盾具有重要的指导意义.结果表明,黄土高原人工林地土壤水分供耗矛盾突出,不同植被地带人工林地水分亏缺度表现为森林带<森林草原带<典型草原带,亏缺度由森林带的不亏缺逐渐增大到典型草原带的61.52;阴坡水分亏缺度小于阳坡,坡下部小于上部,缓坡小于陡坡;土壤剖面的水分循环活跃层亏缺度要远小于强烈耗水层,最大相差达66.67;林地土壤水分的动态变化具有明显的季节变化性,雨季时一般供水量大于耗水量,林地水分亏缺程度较轻,但雨季前植被蒸腾耗水较强,水分供需矛盾突出,亏缺程度较重.

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备注/Memo

备注/Memo:
十一五国家科技支撑计划课题(2006BAD03A02).
更新日期/Last Update: 2010-05-04