干旱区生态环境知识资源中心(Arid): 鄂尔多斯地区两种典型沙质荒漠化阶段微气象特征的比较研究

Arid

	鄂尔多斯地区两种典型沙质荒漠化阶段微气象特征的比较研究
其他题名	Comparison of micro-meteorological characteristics of different stage in desertification area erduosi
	孙鹏森; 刘世荣
来源期刊	林业科学
ISSN	1001-7488
出版年	2003
卷号	39 期号:4 页码:9-15
中文摘要	本文旨在研究鄂尔多斯地区的两种典型的沙质荒漠化阶段的下垫面微气象特征（净辐射、土壤水分、土壤温度、降水量、风速）的变异性规律与沙质荒漠化之间的关系。两种典型沙质荒漠化阶段的群落类型分别为油蒿群落和牛心朴子群落。结果表明，由于沙质荒漠化不同阶段的下垫面的植被群落组成、结构和盖度的差异，引起净辐射、土壤含水量、近地层风速等产生较大差异。油蒿群落的太阳净辐射能明显比牛心扑子群落高；油蒿群落与牛心朴子群落的不同深度土壤水分差别很大，当降雨量在45 mm以下时，只能影响0～40 cm土深的土壤水分状况，而这一深度恰好是大部分植物根系分布的区域。油蒿群落比牛心朴子群落更有利于维持土壤温度的恒定。油蒿群落对近地面风速有明显的消减作用。
英文摘要	Since the micro-meteorological characteristics including net solar radiation, soil temperature, soil moisture, precipitation, and wind speed are response factors of desertification, so our study was focused on two communities of deser-iifkirtwn staige; Artemisia ordosica and cynanchum komarocii. Net solar radiation, soil moisture and wind speed were changed remarkably in the two communities because of the community component, structure, and cover degree. Net radiation (R_n) of Artemisia ordosica community was higher than that of Cynanchum komarocii community and a difference d soil moisture- was also in existence. The depth of soil moisture that can be affected by the rain depends on the depth of precipitation: When the monthly precipitation was lower than 45 mm, Only the upper 40 cm soil moisture runs up where there most of the root system was distributed. Artemisia ordosica community has more stable soil temperature than Cynanchum komarocii community as well as more efficiency in weakening wind speed.
中文关键词	鄂尔多斯 ; 沙质荒漠化阶段 ; 微气象 ; 油蒿 ; 牛心朴子
英文关键词	erduosi desertification stage micro-meteorological artemisia ordosica cynanchum komarocii
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:1198861
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204184
作者单位	中国林业科学研究院森林生态环境与保护研究所, 北京 100091, 中国
推荐引用方式 GB/T 7714	孙鹏森,刘世荣. 鄂尔多斯地区两种典型沙质荒漠化阶段微气象特征的比较研究[J],2003,39(4):9-15.
APA	孙鹏森,&刘世荣.(2003).鄂尔多斯地区两种典型沙质荒漠化阶段微气象特征的比较研究.林业科学,39(4),9-15.
MLA	孙鹏森,et al."鄂尔多斯地区两种典型沙质荒漠化阶段微气象特征的比较研究".林业科学 39.4(2003):9-15.