干旱区生态环境知识资源中心(Arid): 古尔班通古特沙漠生境对植物群落格局的影响

Arid

	古尔班通古特沙漠生境对植物群落格局的影响
其他题名	Impact of Ecoenvironment on Vegetation Community Pattern in Gurbantunggut Desert
	钱亦兵 1; 吴兆宁 2; 张立运 1; 师庆东 2; 蒋进 1; 唐立松 1
来源期刊	地理学报
ISSN	0375-5444
出版年	2004
卷号	59 期号:6 页码:895-902
中文摘要	沿87°37′09～88°24′04E纵穿古尔班通古特沙漠,对44°14′04～45°41′52N的范围进行11个样地的地貌景观调查、植被分布参数采集和土壤取样.研究区统计到的植物种数占古尔班通古特沙漠文献资料中植物种数的1/3,出现的植物群落构建了该沙漠大面积成片分布的荒漠植被景观.调查发现,随着宏观生境的空间变化,植物群落作相应的演替.在此基础上,利用因子分析(PCA)和相关分析(CA)查明了沙漠风沙土理化属性,如土壤养分、盐分、水分、碱性(pH)等微生境的异质性仅对沙漠植被草本层片的多样性(PIE 草)产生显著影响.同时,这些微生境因相互拮抗使沙漠环境处于暂时的脆弱平衡之中.
英文摘要	Vegetation investigation and soil sampling of 14 sites, across the Gurbantunggut Desert along the range of 87°37’09"-88°24’04"E and in the range of 44°14’04"-45°41’52"N, were carried out. Eight species of low tree and shrubs, 5 of perennial herbs, 8 of annual plants, 48 of ephemeral and ephemeroid plants were recorded. These species of the plants occupy 1/3 species of Gurbantunggut Desert plant indices and their communities form vast patches of desert vegetation with great landscape significance. In the investigation we found that the vegetation communities are accordingly succeeded with the spacial variation of macro-ecoenvironment. On the basis of counting the frequency and important values, we chose Sinpson dominance index (C) and Herlbert diversity index (PIE) to describe the composition and structure characteristics of tree-shrub and herb synusiae. Using Principal Component Analysis (PCA) and Correlation Analysis (CA) we found that the micro-ecoenvironment heterogeneity of aeolian soil physio-chemical properties, such as soil nutrient, soil moisture, soil salt, pH, etc., only exerts significant impact on the diversity of herb synusia (PIEherb), with a negative correlation. Meanwhile, the micro-ecoenvironments, which take a form of antagonistic interaction, have composed a fragile equilibrium of the desert environment. In case this equilibrium is disturbed by artificial and natural factors, the ecological distribution pattern of Gurbantunggut Desert would change.
中文关键词	古尔班通古特沙漠 ; 生境异质性 ; 植被生态 ; 影响
英文关键词	heterogeneity of ecoenvironment impact vegetation ecology Gurbantunggut Desert
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:1791233
来源机构	中国科学院新疆生态与地理研究所 ; 新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204887
作者单位	1.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国; 2.新疆大学资源与环境科学学院, 乌鲁木齐, 新疆 830008, 中国
推荐引用方式 GB/T 7714	钱亦兵,吴兆宁,张立运,等. 古尔班通古特沙漠生境对植物群落格局的影响[J]. 中国科学院新疆生态与地理研究所, 新疆大学,2004,59(6):895-902.
APA	钱亦兵,吴兆宁,张立运,师庆东,蒋进,&唐立松.(2004).古尔班通古特沙漠生境对植物群落格局的影响.地理学报,59(6),895-902.
MLA	钱亦兵,et al."古尔班通古特沙漠生境对植物群落格局的影响".地理学报 59.6(2004):895-902.