干旱区生态环境知识资源中心(Arid): 新疆沙冬青群落的区系组成与结构特征

Arid

	新疆沙冬青群落的区系组成与结构特征
其他题名	Study on the Floristic Genera and Structure of the Community of Ammopiptanthus nanus
	张永智; 潘伯荣; 尹林克; 段士民
ISSN	1001-4675
出版年	2006
卷号	23 期号:2 页码:320-326
中文摘要	在乌恰县不同分布地点的新疆沙冬青群落中随机设置10个样方,对新疆沙冬青群落种子植物的科、属、种的组成及其结构特征进行调查.结果表明：新疆沙冬青群落由22科39属62种种子植物组成,群落物种较为丰富,科的区系以世界分布类型为主,属的区系以地中海-中亚-西亚成分为主,区系地理成分古老而复杂.新疆沙冬青群落的水平结构,大部分植物以丛生形式在群落中聚集分布,少数植物散生于群落中;群落的垂直结构,按生长型可分为2层（灌木层、草本层）和6个层片,构成新疆沙冬青群落的植物,其中草本和半灌木种类较多,所占的比例较大.群落中草本层片占植被总覆盖度的15%～31%,新疆沙冬青群落属于草原化荒漠植被类型.
英文摘要	The rare endangered plant Ammopiptanthus nanus （M. Pop. ） Cheng f. is a species of evergreen broadleaf endemic shrub in the deserts in Central Asia. Now the plant is under the state second-grade protection and the first-grade protection in Xinjiang Uygur Autonomous Region. Many scholars studied on ecology, structural botany, photochemistry, cytology, physiological ecology, reproductive ecology and systernatics of A. nanus. But the studies about the plant communities of A. nanus are not so many. In this paper, the theories and methods about plant community researches are used to research the composition of families, genera, species and structure characteristics of the plant community of A. nanus in 10 plots in Wuqia County, Xinjiang. The results show that A. nanus community is composed of 62 species in 39 genera and 22 families. Most of the families are Cosmopolitan, and most genera are Mediterranea. W. Asia to C. Asia and originated early. We knew these from ＂Flora of China＂, ＂TOMUS 1＂ and ＂The Vegetation and Its Utilization in Xinjiang＂. These old and complex floras were affected by the geography formation in Xinjiang. By researching the horizontal structure of A. nanus community, most of the species are in patchy and cluster. A few species shows lonely in communities. Vertical structure of A. nanus community is divided into shrub layer, grass layer, 6 synusias by growth form. So the structure of A. nanus community is complex. Compared with other life forms, the proportion of grass species is as high as 40.36%. The coverage of grass layer varies in a range of 15%-31% of the total vegetation coverage. So A. nanus community is a steppe desert vegetation type. Some theoretical guides are put forward for protecting the communitv of A. nanus.
中文关键词	新疆沙冬青（Ammopiptanthus nanus） ; 群落 ; 物种 ; 植物区系
英文关键词	Arnrnopiptanthus nanus （M. Pop. ）Cheng f. floristic element species community flora
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:2461098
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219738
作者单位	中国科学院新疆生态与地理研究所吐鲁番沙漠植物园, 吐鲁番, 新疆 838008, 中国
推荐引用方式 GB/T 7714	张永智,潘伯荣,尹林克,等. 新疆沙冬青群落的区系组成与结构特征[J]. 中国科学院新疆生态与地理研究所,2006,23(2):320-326.
APA	张永智,潘伯荣,尹林克,&段士民.(2006).新疆沙冬青群落的区系组成与结构特征.,23(2),320-326.
MLA	张永智,et al."新疆沙冬青群落的区系组成与结构特征".23.2(2006):320-326.