干旱区生态环境知识资源中心(Arid): 新疆额尔齐斯河流域典型地区灌木群落多样性

Arid

	新疆额尔齐斯河流域典型地区灌木群落多样性
其他题名	Species diversity of shrub communities in typical areas of the Xinjiang Irtysh River watershed
	张和钰; 周华荣; 叶琴; 温彬
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2016
卷号	35 期号:5 页码:1188-1196
中文摘要	为了探讨灌木植物在干旱区山地-荒漠-绿洲景观构型下的群落物种组成和多样性变化规律以及灌木地景观特点,本文对额尔齐斯河流域典型地区灌木物种进行样方调查和区系分析,运用TWINSPAN分类方法对其进行分类,计算群落多样性指数,分析研究区的灌木地景观的群落多样性。研究区被调查的植物有185种(灌木植物44种,草本植物141种),隶属于33科123属,其中以蔷薇科、菊科、藜科等西北干旱区的优势科居多。灌木物种的植物区系以北温带分布和地中海区、西亚至中亚分布为主。研究区灌木植物群落可划分为9种灌木群落类型或灌木地景观类型,分属平原和河谷灌丛、山地灌丛和平原荒漠类型,其群落多样性指数中,多样性指数、均匀度指数和丰富度指数的变化趋势基本一致,优势度指数则与前三者呈负消长的关系;随着海拔升高,多样性指数、均匀度指数和丰富度指数变化均呈现单峰分布格局。灌木群落结构比较简单,物种组成相对稀少,物种分布不均匀,这与研究区所处的干旱区地理背景和灌木植物或群落生境条件有关。
英文摘要	This study aimed to investigate the species composition, species diversity of shrub communities under mountain-desert-oasis landscape configuration in an arid region of Xinjiang. According to quadrat sampling, shrub communities were classified by TWINSPAN classification method, and the community diversity indexes were calculated. A total of 185 species were identified, including 44 shrub species and 141 herb species,belonging to 123 genera and 33 families. Most of plants belonged to Rosaceae,Compositae and Chenopodiaceae,which were the dominant families in arid regions of northwest China. The flora of shrub species was dominated by the North temperate,the ancient Mediterranean and West Asia to Central Asia components. Shrub communities could be divided into 9 types of shrub community or shrub landscape,including plain and valley shrub, montane scrub and plain desert type. The Shannon diversity index, Pielou evenness index and species richness index showed a similar pattern,being opposite to the dominance index. Moreover,with the increase of the altitude, the Shannon diversity index, Pielou evenness index and species richness index showed a single peak distribution pattern. Our results indicated that the shrub community structure in the study area was relatively simple,the compositional species were relatively few,and the species distribution was not uniform,which may be related to the geographical background and the habitat conditions of shrub plants in arid areas.
中文关键词	灌木群落 ; 物种多样性 ; TWINSPAN分类 ; 群落相似性 ; 额尔齐斯河流域
英文关键词	shrub community species diversity TWINSPAN community similarity Irtysh River watershed
语种	中文
国家	中国
收录类别	CSCD
WOS类目	BIOLOGY
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:5699020
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/2XILL650/234860
作者单位	中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	张和钰,周华荣,叶琴,等. 新疆额尔齐斯河流域典型地区灌木群落多样性[J]. 中国科学院新疆生态与地理研究所,2016,35(5):1188-1196.
APA	张和钰,周华荣,叶琴,&温彬.(2016).新疆额尔齐斯河流域典型地区灌木群落多样性.生态学杂志,35(5),1188-1196.
MLA	张和钰,et al."新疆额尔齐斯河流域典型地区灌木群落多样性".生态学杂志 35.5(2016):1188-1196.