干旱区生态环境知识资源中心(Arid): 贺兰山植物区系的特有性

Arid

	贺兰山植物区系的特有性
其他题名	Plant Endemism in the Helanshan Mountains
	李志刚 1; 梁存柱 2; 王炜 2; 王立新 3; 贾成朕 2
来源期刊	内蒙古大学学报. 自然科学版
ISSN	1000-1638
出版年	2012
卷号	43 期号:6 页码:630-638
中文摘要	贺兰山及其毗邻的东阿拉善和西鄂尔多斯地区生物多样性特殊,是中国8个生物多样性中心之一的南蒙古中心的核心区.本文就该地区生物多样性组成、特有类群及其分布与分化进行了分析,结果表明:1)贺兰山目前记录野生维管植物357属788种2亚种和28个变种.2)贺兰山分布有西鄂尔多斯特有亚科:四合木亚科(Tetraenoideae);2个东阿拉善和西鄂尔多斯特有属:四合木属(Tetraena)、革苞菊属(Tugarinovia);2个亚洲中部特有属:沙冬青属(Ammopiptanthus)和紊蒿属(Elachanthemum);上述4属均分布于山麓地带.3)贺兰山有特有与近特有种54个,特有变种15个,特有亚种1个,占贺兰山维管植物的7.3%.4)贺兰山特有植物区系既古老而又年轻,其山麓特有类群多为古老干旱区植物后裔,而山地特有类群多为晚近分化类群.5)贺兰山植物区系是一个强烈旱化的生物区系,特有植物旱生类型共占了42.6%,特别是山麓特有种,95%为旱生植物.
英文摘要	The Helanshan Mountains and its adjacent regions East Alashan-West Ordos Dryland of China is the core areas of the South Mongolian region,and one of the eight biodiversity centers in China.The plant biodiversity in this area is diverse and unique,its composition and spatial distribution were investigated,including endemic taxonomic groups,phylogenetic variations,and the spatial differentiation.Results indicate that there are 87 families,357 genera,788 species,and 30 varieties of wild vascular plants in the Helanshan Mountains.Among them,Tetraenoideae is West Ordos endemic subfamily,Tetraena and Tugarinovia are East Alashan-West Ordos endemic genera,and Ammopiptanthus and Elachanthemum are central Asia desert endemic genera.These 4 local and semi-local endemic generas are all distributed in piedmont areas.There are 54 species and 16 varieties of local and semi-local endemic species ofvascular plants,accounting for 7.3 % of all vascular plants in this area.The flora of this region is a mix of the ancient and young species and has some phylogenetic variations and spatial differentiation.The endemic plants distributed in piedmont areas most are descendants of the ancient xerophytes,and those in mountainous areas are differentiated in the late stage of the Quaternary.This area has a rich xeric biota,the xeric types accounting for 42.6% of all endemic plants,and 95% of all endemic plants distributed in piedmont areas.areas being descendants of the old arid areas and those in mountainous areas being recently differentiated.The area has a rich xeric biota in which the xeric types account for 42.6% of all mountainous endemic plants as well as 95% of all plain endemic plants.
中文关键词	贺兰山 ; 东阿拉善和西鄂尔多斯地区 ; 生物多样性 ; 特有植物
英文关键词	Helanshan mountains East Alashan-West Ordos area biological diversity endemic plant
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:4691929
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228319
作者单位	1.宁夏回族自治区林业技术推广总站, 银川, 宁夏 750000, 中国; 2.内蒙古大学生命科学学院, 呼和浩特, 内蒙古 010021, 中国; 3.内蒙古大学环境科学学院, 呼和浩特, 内蒙古 010021, 中国
推荐引用方式 GB/T 7714	李志刚,梁存柱,王炜,等. 贺兰山植物区系的特有性[J],2012,43(6):630-638.
APA	李志刚,梁存柱,王炜,王立新,&贾成朕.(2012).贺兰山植物区系的特有性.内蒙古大学学报. 自然科学版,43(6),630-638.
MLA	李志刚,et al."贺兰山植物区系的特有性".内蒙古大学学报. 自然科学版 43.6(2012):630-638.