Plant diversity and floristic characters of the alpine subnival belt flora in the Hengduan Mountains, SW China

CORC > 昆明植物研究所 > 中国科学院昆明植物研究所 > 中国科学院东亚植物多样性与生物地理学重点实验室

	Plant diversity and floristic characters of the alpine subnival belt flora in the Hengduan Mountains, SW China
	Xu, Bo 1,2; Li, Zhi-Min 3; Sun, Hang1
刊名	JOURNAL OF SYSTEMATICS AND EVOLUTION
	2014-05-01
卷号	52 期号:3 页码:271-279
关键词	alpine subnival belt floristic characters Hengduan Mountains plant diversity
ISSN号	1674-4918
通讯作者	Sun,H (reprint author),Chinese Acad Sci,Kunming Inst Bot,Key Lab Biodivers & Biogeog,Kunming 650201,Peoples R China. ; hsun@mail.kib.ac.cn
英文摘要	There have been few studies of the alpine subnival belt flora in the Hengduan Mountains (HM), which host remarkable biodiversity. To extend knowledge of this flora, we examined published florae, herbarium specimens, and field observations (and material) collected by both ourselves and others. In total, 942 seed plant species have been recorded in the belt, representing 168 genera and 48 families. Twenty-four large families (with 10 species) are present, represented by 873 species (92.68% of the total). These include Asteraceae, Saxifragaceae, and Brassicaceae (146, 82, and 71 species, respectively). There are also 27 large genera (represented by 10 species), collectively contributing 587 species (62.31%) to the flora, including Saxifraga, Corydalis, and Saussurea (75, 55, and 49 species, respectively). Areal elements represented by the highest numbers of genera are the North temperate, Sino-Himalaya, and Old World temperate elements (39.88%, 14.29%, and 12.50%, respectively), while the Hengduan Mountains, Sino-Himalaya, and Qinghai-Tibetan Plateau elements are most species-rich (355, 281, and 161 species, respectively), collectively accounting for 84.61% species of the known flora. Of these, 295 species (31.32%) are endemic to the Sino-Himalayan alpine subnival belt and 151 (16.03%) strictly endemic to the alpine subnival belt of the HM. These findings indicate that the flora is young, strongly differentiated, probably developed as a result of the plateau's uplift, and speciation has been accelerated by the harsh environment and strong heterogeneity of niches.
学科主题	Plant Sciences
类目[WOS]	Plant Sciences
研究领域[WOS]	Plant Sciences
关键词[WOS]	CLIMATE-CHANGE ; CORYDALIS FUMARIACEAE ; BIODIVERSITY ; BRASSICACEAE ; ASTERACEAE ; CONSERVATION ; CICHORIEAE ; PHYLOGENY ; SICHUAN ; EUROPE
收录类别	SCI
资助信息	Chinese Academy of Sciences [XDB03030112]; National Natural Science Foundation of China [40930209, 31100179]; Hundred Talents Program of the Chinese Academy of Sciences [2011312D11022]
语种	英语
WOS记录号	WOS:000335400300004
公开日期	2014-06-23
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/18134]
专题	昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650201, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Yunnan Normal Univ, Sch Life Sci, Kunming 650031, Peoples R China
推荐引用方式 GB/T 7714	Xu, Bo,Li, Zhi-Min,Sun, Hang. Plant diversity and floristic characters of the alpine subnival belt flora in the Hengduan Mountains, SW China[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2014,52(3):271-279.
APA	Xu, Bo,Li, Zhi-Min,&Sun, Hang.(2014).Plant diversity and floristic characters of the alpine subnival belt flora in the Hengduan Mountains, SW China.JOURNAL OF SYSTEMATICS AND EVOLUTION,52(3),271-279.
MLA	Xu, Bo,et al."Plant diversity and floristic characters of the alpine subnival belt flora in the Hengduan Mountains, SW China".JOURNAL OF SYSTEMATICS AND EVOLUTION 52.3(2014):271-279.