干旱区生态环境知识资源中心(Arid): 绿洲-荒漠交错带活化沙丘的植物群落特征分析

Arid

	绿洲-荒漠交错带活化沙丘的植物群落特征分析
其他题名	Analysis on Vegetation Characteristics of Activating Sanddunes in the Oasis-desert Ecotone
	孙涛; 王继和; 刘虎俊; 纪永福; 丁峰; 袁洪波
ISSN	1005-3409
出版年	2009
卷号	16 期号:6 页码:174-178
中文摘要	以民勤绿洲-荒漠交错带活化沙丘上的植物群落为对象,研究了活化沙丘不同部位的沙地植物群落物种组成、结构和多样性的变化.研究结果表明:从活化沙丘的下部、中部、丘顶,到背风坡的中部、下部,再到丘间低地,每一个生境对应着不同的群落类型.各部位不仅植物种类和数量存在差异,而且群落结构差异明显,其中丘顶为一年生草本植被构成,而丘间低地处只有灌木.群落物种多样性与相似性指数表明,从沙丘下部到丘顶再到丘间地,生态因子的差异对物种的分布格局产生了影响,从而导致了群落结构和功能发生了变化.活化沙丘植被简单,退化严重,需加强保护,防止继续退化.
英文摘要	The vegetation communities of activating dune in the Minqin oasis-desert ecotone were investigated by a conventional way for researching the plant species structures and characteristics in different position of the dune. The results showed that there is a different plant community type in each position of the activating dune from low,midst,dune tops and midst, low of slope depressions and sandy land among the dunes. The differences of plant species and quantity had exist, also the variance of plant communities obviously. There is only annual grass species on dune tops, but shrubs on sandy land. The bio-diversity and the similarity index of communities showed that the differenee of ecological factors not only affected the distribution patterns of species, but also changed the structures and functions of plant communities. The vegetations of these activating sanddunes are simple and suffer degeneration serious, then need enhanced protection methods to prevent sand dunes from becoming mobile.
中文关键词	绿洲-荒漠交错带 ; 活化沙丘 ; 植物群落 ; 生物多样性
英文关键词	oasis-desert ecotone activating sanddunes vegetation community biodiversity
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:3795819
来源机构	甘肃省治沙研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224233
作者单位	甘肃省治沙研究所, 甘肃省荒漠化防治重点实验室, 武威, 甘肃 733000, 中国
推荐引用方式 GB/T 7714	孙涛,王继和,刘虎俊,等. 绿洲-荒漠交错带活化沙丘的植物群落特征分析[J]. 甘肃省治沙研究所,2009,16(6):174-178.
APA	孙涛,王继和,刘虎俊,纪永福,丁峰,&袁洪波.(2009).绿洲-荒漠交错带活化沙丘的植物群落特征分析.,16(6),174-178.
MLA	孙涛,et al."绿洲-荒漠交错带活化沙丘的植物群落特征分析".16.6(2009):174-178.