干旱区生态环境知识资源中心(Arid): 塔里木荒漠胡杨群落特征的研究

Arid

	塔里木荒漠胡杨群落特征的研究
其他题名	Study on the Feature of Populus euphratica Oliv. Community in the Desert Region of Tarim
	韩路; 王海珍; 周正立; 李志军
ISSN	1003-7578
出版年	2007
卷号	21 期号:8 页码:163-168
中文摘要	选择塔里木荒漠胡杨群落分布较集中的地段设置样地,并以植物群落调查样地资料为基础,对荒漠胡杨群落特征进行分析与研究.结果表明:该胡杨群落植物种类组成贫乏、区系成分简单.从属的地理成分来看,古地中海成分明显多于温带成分;群落生活型以一年生植物为主,矮高位芽植物次之,叶的性质以小叶型、单叶、草质、全缘为主,反映出塔里木环境气候的旱化趋势和该群落与本区的干旱气候特点、地理位置及其地史变迁相吻合.群落垂直结构简单,可分为乔木层、灌木层、草本层.草本层灌木层乔木层物种多样性依次递减.胡杨种群年龄结构呈偏正态分布,基本上呈稳定型.存活曲线趋似于DeeveyII型,种群从V龄发育到VII龄过程中出现死亡率高峰.优势种群胡杨呈随机分布,伴生种呈随机或聚集分布.
英文摘要	The sampling plots were chosen in Luntai Populus euphratica Oliv. natural reserve in Tarim. The data were obtained by plant community investigating method. The study on the feature of P. euphratica Oliv. community in desert region showed that natural conditions ofP. euphratica community is formidable and the species are very less,and their flora composition is simple. In terms of genus geographical elements,many of them are distributed in Mediterranea,W. A sia to C. A sia. According to Raunkiaer’s statistics of life-form, the life-form of therophytes in this community are the most, and the low pha-enerophyteS are the second. The leaves are mainly microphylla, simple, coriaceous and entire,which indicates the drought trend of Tarim’s environment and climate and is correspondence of community characteristics and climatic characteristics, geographical position and geological transition. The vertical structure of community is relatively simple which can he divided into tree layer, shrub layer and herb layer . The species diversity decreases from herb, shrub to tree layer. The age structure ofP. euphratica populous is skew normal distribution and it keeps stationary currently. The survivor curve trends to Deeveyll, mortality rate appears emerge peak in the course: of five years to seven years old. The. distribution of dominant population is random and that of companion species are clump or random.
中文关键词	胡杨群落 ; 植物区系 ; 生活型 ; 种群结构 ; 分布格局
英文关键词	Populus euphratica community flora life form population structure distribution patterns
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:2849796
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/221073
作者单位	塔里木大学植物科技学院, 阿拉尔, 新疆 843300, 中国
推荐引用方式 GB/T 7714	韩路,王海珍,周正立,等. 塔里木荒漠胡杨群落特征的研究[J],2007,21(8):163-168.
APA	韩路,王海珍,周正立,&李志军.(2007).塔里木荒漠胡杨群落特征的研究.,21(8),163-168.
MLA	韩路,et al."塔里木荒漠胡杨群落特征的研究".21.8(2007):163-168.