干旱区生态环境知识资源中心(Arid): 荒漠植被红砂（Reaumurta soongorica）水热响应的年轮学研究

Arid

	荒漠植被红砂（Reaumurta soongorica）水热响应的年轮学研究
其他题名	Dendrochronology Study on Response of Reaumurta soongorica to Water-Heat Variation
	肖生春; 肖洪浪; 宋耀选; 段争虎; 陆明峰
ISSN	1000-694X
出版年	2006
卷号	26 期号:4 页码:548-552
中文摘要	红砂是黄土高原荒漠植被带主要建群植物种之一，在植被恢复重建和生态建设中具有重要意义。本文以皋兰县40。天然植被封育区为例，运用树木年轮学方法，对不同坡向红砂与当地水热条件变化的时空响应及分布格局进行了研究。研究结果表明，红砂具有明显的年轮特征，可以进行树木年轮方面的研究。虽然不同坡向水分条件和植被状况有很大差异，但红砂径向生长对区域水热变化具有非常一致的响应模式：同生长季降水呈正相关关系，尤以7月降水量最为显著；同生长季气温呈负相关关系，以6月最为显著。根据不同坡向红砂年龄分布格局分析结果，并考虑到水土流失的防治效果，黄土高原西部荒漠植被带的封育期限不宜少于10a。
英文摘要	Reaumurta soongorica is one of the constructive species in desert vegetation, which has important significance in vegetation rehabilitation and eco-construction in Loess Plateau. Taking the forty-year enclosed natural vegetation area in Gaolan County of Gansu province as study sample and by the method of dendrochronology, we studied the growth response of Reaumurta soongorica and the age structure in different slop orientations to local air temperature change and rainfall conditions. The result showed that Reaumurta soongorica has distinctive rings in its cross section, which are capable of being applied in dendrochronology research. The radial growth of Reaumurta soongorica has very consistent response model to the local environment condition, although the soil moisture and vegetation conditions varied in different slop orientations in the study site. In generally, the radial growth of Reaumurta soongorica was positively correlated with the precipitation in the growth season, significantly with that in July ; and negatively correlated with the air temperature from May to August, significantly with that in June. Based on the result of analyzing the age structure of Reaumurta soongorica standing in different slop orientations and taking the effect of soil and water conservation into consideration, we suggested that the enclosure period of thedesert vegetation in western Loess Plateau would be not less than 10 years.
中文关键词	红砂 ; 灌木树木年轮学 ; 水热变化 ; 荒漠植被带 ; 植被恢复 ; 黄土高原
英文关键词	Reaumurta soongorica shrub dendrochronology hydro-thermal change desert vegetation belt vegetation rehabilitation Loess Plateau
语种	中文
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:2468849
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220463
作者单位	中国科学院寒区旱区环境与工程研究所, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	肖生春,肖洪浪,宋耀选,等. 荒漠植被红砂（Reaumurta soongorica）水热响应的年轮学研究[J]. 中国科学院西北生态环境资源研究院,2006,26(4):548-552.
APA	肖生春,肖洪浪,宋耀选,段争虎,&陆明峰.(2006).荒漠植被红砂（Reaumurta soongorica）水热响应的年轮学研究.,26(4),548-552.
MLA	肖生春,et al."荒漠植被红砂（Reaumurta soongorica）水热响应的年轮学研究".26.4(2006):548-552.