干旱区生态环境知识资源中心(Arid): 毛乌素沙地天然植物多样性组成及区系特征分析

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	毛乌素沙地天然植物多样性组成及区系特征分析
其他题名	Analysis of Biodiversity and Flora Characteristics of Natural Plants in Mu Us Sandy Land
	段义忠 1; 李娟 2; 杜忠毓 2; 亢福仁 1
来源期刊	西北植物学报
ISSN	1000-4025
出版年	2018
卷号	38 期号:4 页码:770-779
中文摘要	毛乌素沙地位于干旱、半干旱区向半湿润区过渡地带,该研究通过野外调查及数据统计,对毛乌素沙地天然植物科、属、种的组成及区系特征进行了分析,并与周围的沙地(沙漠)植物区系进行比较,以明确毛乌素沙地的珍稀植物及其植物多样性组成特征。结果表明:(1)毛乌素沙地天然植物共90科360属772种,区内植物类群相对丰富,植被群落类型多样,优势科明显,单种属、寡种属占到的比例达到73.45%。(2)毛乌素沙地天然植物90科划分为10个分布区类型及4个变型,360属划分为15个分布区类型及10个变型。(3)毛乌素沙地科的植物区系组成以世界分布为主,属的植物区系组成以温带分布为主,反映了该区的植物区系与所处的地理位置和气候具有相适应的特性。(4)毛乌素沙地植物区系成分与浑善达克沙地植物区系亲缘关系最近,与库布齐沙漠、乌兰布和沙漠、库姆塔格沙漠植物区系有一定差异,表明毛乌素沙地植物区系存在明显的从温带分布到地中海区、西亚至中亚分布的过渡性质。
英文摘要	The Mu Us sandy land is located in the transitional zone from arid and semi-arid to semi-humid areas in China,and the study of species diversity and flora composition of natural plants have special significance. Based on the field investigation and statistics of natural plant species,the composition of the families, genera and species and flora composition of natural plants in the Mu Us sandy land are analyzed and compared with the adjacent sandy(desert)flora.(1)This area contains totally 772 species of natural plants,which belong to 90 families and 360 genera.The flora is relatively rich and the vegetation types are diverse,and the dominant families are obvious.The proportion of single species and few species account for 73.45%.(2)The natural flora of Mu Us sandy land is divided into 10 areal-types and 4 variations in 90 families,and 360 genera are divided into 15 areal-types and 10 variations.(3)The flora of Mu Us sandy land is dominated by Cosmopolitan,and the flora of the genus is mainly distributed in Temperate.There was a better pertinence between the characteristics of plants flora with the geographical location and climate.( 4)The flora of Mu Us sandy land is very closed to Hunshandake sandy land,and less colosed to Kubuqi desert,Ulanbug desert and Kumtag desert.The results show that the flora of Mu Us sandy land is obviously distributed from Temperate to Mediterranean,West Asia and Central Asia.
中文关键词	毛乌素沙地 ; 生物多样性 ; 区系特征 ; 聚类分类
英文关键词	Mu Us sandy land biodiversity flora characteristics cluster analysis
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:6249502
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238489
作者单位	1.榆林学院生命科学学院;;陕西省陕北生态修复重点实验室, ;;陕西省陕北生态修复重点实验室, 榆林;;榆林, 陕西;;陕西 719000;;719000, 中国; 2.榆林学院生命科学学院, 榆林, 陕西 719000, 中国
推荐引用方式 GB/T 7714	段义忠,李娟,杜忠毓,等. 毛乌素沙地天然植物多样性组成及区系特征分析[J],2018,38(4):770-779.
APA	段义忠,李娟,杜忠毓,&亢福仁.(2018).毛乌素沙地天然植物多样性组成及区系特征分析.西北植物学报,38(4),770-779.
MLA	段义忠,et al."毛乌素沙地天然植物多样性组成及区系特征分析".西北植物学报 38.4(2018):770-779.