干旱区生态环境知识资源中心(Arid): Spatial heterogeneity of plant species on the windward slope of active sand dunes in a semi-arid region of China

Arid

	Spatial heterogeneity of plant species on the windward slope of active sand dunes in a semi-arid region of China
	Jiang Deming; Miao Chunping; Li Xuehua; Li Xiaolan; ALAMUSA; Zhou Quanlai
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2013
卷号	5 期号:1 页码:80-88
英文摘要	Species richness and abundance are two important species diversity variables that have attracted particular attention because of their significance in determining present and future species composition conditions.This paper aims to explain the qualitative and quantitative relationships between species diversity pattern and grain size(i.e.size of the sampling unit),and species diversity pattern and sampling area,and to analyze species diversity variability on active sand dunes in the Horqin Sandy Land,northeastern Inner Mongolia,China.A 50 m*50 m sampling plot was selected on the windward slope,where the dominant species was annual herb Agriophyllum squarrosum.Species composition and abundance at five grain sizes were recorded,and the species-area curves were produced for thirteen grain sizes.The range of values for species abundance tended to increase with increasing grain size in the study area,whereas,generally,species richness did not follow this rule because of poor species richness on the windward slope of active sand dunes.However,the homogeneity of species richness increased significantly.With the increase in sampling area,species abundance increased linearly,but richness increased logarithmically.Furthermore,variograms showed that species diversity on the windward slope of active sand dunes was weakly anisotropic and the distribution pattern was random,according to the Moran Coefficient.The results also showed that species richness was low,with a random distribution pattern.This conflicts with the results of previous studies that showed spatial aggregation in lower richness in a sampling area within a community and inferred that the physical processes play a more important role in species diversity than distribution pattern on active sand dunes.Further research into different diversity patterns and mechanisms between active sand dunes and interdune lowlands should be conducted to better understand biodiversity conservation in sand dune fields.
英文关键词	abundance richness grain size species-area curve variogram Horqin Sandy Land
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Geology
CSCD记录号	CSCD:4906439
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335240
作者单位	Jiang Deming, Institute of Applied Ecology,Chinese Academy of Sciences, Shenyang, Liaoning 110016, China.; Miao Chunping, Institute of Applied Ecology,Chinese Academy of Sciences, Shenyang, Liaoning 110016, China.; Li Xuehua, Institute of Applied Ecology,Chinese Academy of Sciences, Shenyang, Liaoning 110016, China.; ALAMUSA, Institute of Applied Ecology,Chinese Academy of Sciences, Shenyang, Liaoning 110016, China.; Zhou Quanlai, Institute of Applied Ecology,Chinese Academy of Sciences, Shenyang, Liaoning 110016, China.; Li Xiaolan, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, Xinjiang 832000, China.
推荐引用方式 GB/T 7714	Jiang Deming,Miao Chunping,Li Xuehua,et al. Spatial heterogeneity of plant species on the windward slope of active sand dunes in a semi-arid region of China[J],2013,5(1):80-88.
APA	Jiang Deming,Miao Chunping,Li Xuehua,Li Xiaolan,ALAMUSA,&Zhou Quanlai.(2013).Spatial heterogeneity of plant species on the windward slope of active sand dunes in a semi-arid region of China.Journal of Arid Land,5(1),80-88.
MLA	Jiang Deming,et al."Spatial heterogeneity of plant species on the windward slope of active sand dunes in a semi-arid region of China".Journal of Arid Land 5.1(2013):80-88.