干旱区生态环境知识资源中心(Arid): 阜康北部梭梭荒漠早春物种多样性研究

Arid

	阜康北部梭梭荒漠早春物种多样性研究
其他题名	Study on the Early-spring Species Diversity in a Haloxylon Desert in the North Fukang Region, Xinjiang
	王丽娟; 赵成义; 李君; 朱宏; 寇思勇
ISSN	1001-4675
出版年	2009
卷号	26 期号:4 页码:574-581
中文摘要	通过对梭梭荒漠2种植物群落早春的物种组成、垂直结构及物种多样性的对比研究发现:梭梭(Haloxylon ammodendron)群落和白梭梭(Haloxylon persicum)群落具有结构简单、群落优势度高、均匀度和物种多样性较低、旱生性植物占绝对优势及短生植物成为群落重要组成部分等特征.同时,二者存在以下差异:①物种多样性差异,Shannon-Wiener多样性指数、均匀度指数及优势度指数梭梭群落(0.74,0.08和0.81)均高于白梭梭群落(0.61,0.06和0.77);②主要伴生种不同,前者以草本植物为主要伴生种,后者以灌木为主要伴生种;③短生物种丰富度差异分别占前者的64.7%(11种)及后者的60%(15种).2种梭梭群落的特点与差异可能与古尔班通古特沙漠南缘早春适宜的水热配置、群落生境的沙土含水量、沙面稳定程度及物种本身的生物学特性等因素有关.
英文摘要	With the concomitance of abundant transient species and ephemeroid plants in spring,Haloxylon Bunge is a constructive species of the desert ecosystem in the Junggar Basin.In this study,the H.ammodendron and H.persicum communities were investigated in early spring.The results show that both communities dominated by xerophytes are characterized by the simple structure and high dominance but low evenness and species diversity. Moreover,the effects of the transient species and ephemeroid plants are important in the communities.Differences between the two communities are as follows:(1)Shannon-Wiener,evenness and dominance index of the H.ammodendron community(0.74,0.08 and 0.81)are higher than that of the H.persicum community(0.61,0.06 and 0.77);(2)Herbages are the main concomitance species in the H.ammodendron community,but shrubs in the H.persicum community;(3)Richness of the transient species and ephemeroid plants(11 species)in the H. persicum community is higher than that(15 species)in the Haloxylon persicum community,accounting for 64.7% and 60%of the total richness in the communities respectively.These features and differences between the two communities may be attributed to the difference of factors,such as the water and heat conditions,soil moisture content in the habitat,stability of dunes and biological properties of the two species in the southern marginal zone of the Gurbantonggut Desert in early spring.
中文关键词	梭梭群落 ; 早春 ; 物种多样性 ; 阜康 ; 古尔班通古特沙漠
英文关键词	Fukang Gurbantonggut Desert Haloxylon Desert early spring species diversity
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:3659142
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/2XILL650/223623
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	王丽娟,赵成义,李君,等. 阜康北部梭梭荒漠早春物种多样性研究[J]. 中国科学院新疆生态与地理研究所,2009,26(4):574-581.
APA	王丽娟,赵成义,李君,朱宏,&寇思勇.(2009).阜康北部梭梭荒漠早春物种多样性研究.,26(4),574-581.
MLA	王丽娟,et al."阜康北部梭梭荒漠早春物种多样性研究".26.4(2009):574-581.