干旱区生态环境知识资源中心(Arid): 不同植被类型的土壤水分对黄土高原的影响

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	不同植被类型的土壤水分对黄土高原的影响
其他题名	Soil moisture of different vegetation types on the Loess Plateau
	王志强 ; 刘宝元 ; 张岩
ISSN	1009-637X
出版年	2009
卷号	19 期号:6 页码:707-718
英文摘要	Water stored in deep loess soil is one of the most important resources regulating vegetation growth in the semi-arid area of the Loess Plateau, but planted shrub and forest often disrupt the natural water cycle and in turn influence plant growth. The purpose of this study was to examine the effects of main vegetation types on soil moisture and its inter-annual change. Soil moisture in 0-10 m depth of six vegetation types, i.e., crop, grass, planted shrub of caragana, planted forests of arborvitae, pine and the mixture of pine and arborvitae were measured in 2001, 2005 and 2006. Soil moisture in about 0-3 m of cropland and about 0-2 m of other vegetation types varied inter-annually dependent on annual precipitation, but was stable inter-annually below these depths. In 0-2 m, soil moisture of cropland was significantly greater than those of all other vegetation types, and there were no significant differences among other vegetation types. In 2-10 m, there was no significant moisture difference between cropland and grassland, but the soil moistures under both of them were significantly higher than those of planted shrub and forests. The planted shrub and forests had depleted soil moisture below 2 m to or near permanent wilting point, and there were no significant moisture differences among forest types. The soil moisture of caragana shrub was significantly lower than those of forests, but the absolute difference was very small. The results of this study implicated that the planted shrub and forests had depleted deep soil moisture to the lowest limits to which they could extract and they lived mainly on present year precipitation for transpiration.
英文关键词	Loess Plateau vegetation type deep soil profile soil moisture inter-annual change
语种	英语
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:3734055
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223260
作者单位	1.School of Geography, Beijing Normal University, State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing 100875, China; 2.Beijing Forestry University, Key Laboratory of Soil and Water Conservation & Desertification Combat, Ministry of Education, Beijing 100083, China
推荐引用方式 GB/T 7714	王志强,刘宝元,张岩. 不同植被类型的土壤水分对黄土高原的影响[J],2009,19(6):707-718.
APA	王志强,刘宝元,&张岩.(2009).不同植被类型的土壤水分对黄土高原的影响.,19(6),707-718.
MLA	王志强,et al."不同植被类型的土壤水分对黄土高原的影响".19.6(2009):707-718.