Unpalatable weed Stellera chamaejasme L. provides biotic refuge for neighboring species and conserves plant diversity in overgrazing alpine meadows on the Tibetan Plateau in China

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2014 > Vol11 No.3

	Unpalatable weed Stellera chamaejasme L. provides biotic refuge for neighboring species and conserves plant diversity in overgrazing alpine meadows on the Tibetan Plateau in China
	Cheng Wei 1,2,3,4; Sun Geng 1,2; Du Lin-fang 3; Wu Yan 1,2; Zheng Qun-ying 5; Zhang Hong-xuan 5; Liu Lin 6; Wu Ning 1,2,7
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2014-05-01
卷号	11 期号:3 页码:746-754
关键词	Stellera chamaejasme L. Facilitation Unpalatable weed Alpine meadow Tibetan Plateau
ISSN号	1672-6316
通讯作者	SUN Geng
英文摘要	Steller chamaejasme L. (S. chamaejasme for short) is one of the most noxious unpalatable weeds in China, which has been frequently reported its negative interaction (i.e. competition and allelopathy) with other herbaceous species in grasslands. This study compared species diversity, biomass and sexual reproduction of herbaceous plants in meadows with S. chamaejasme and in open meadows without S. chamaejasme in overgrazing meadows on the Tibetan Plateau in China to determine whether positive facilitation exist between S. chamaejasme and other herbaceous species under livestock's overgrazing. The results showed that there are more herbaceous species in meadows with S. chamaejasme than those in open meadows (35s and 30s, respectively). Diversity index and above-ground biomass were also significantly higher in meadows with S. chamaejasme. There were 39% (11/28) of all species with sexual reproduction found in meadows with S. chamaejasme, which was 7 times more than those in open meadows. Our study showed that S. chamaejasme could provide biotic refuge for neighboring plants and preserve plant diversity from livestock's overgrazing in alpine meadows on the Tibetan Plateau. It also suggested that inter-specific facilitation between S. chamaejasme and other herbaceous species may play a key role in overgrazing alpine meadows.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	POSITIVE INTERACTIONS ; BOUTELOUA-GRACILIS ; FACILITATION ; COMMUNITIES ; STEPPE ; COMPETITION ; GRASSLAND ; MOUNTAINS ; HERBIVORY ; BIOMASS
收录类别	SCI
语种	英语
WOS记录号	WOS:000336319100015
公开日期	2014-05-06
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/6902]
专题	成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2014_Vol11 No.3
作者单位	1.Chinese Acad Sci, Chengdu Inst Biol, Key Lab Mt Ecol Restorat & Bioresource Utilizat, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Chengdu Inst Biol, Ecol Restorat Biodivers Conservat Key Lab Sichuan, Chengdu 610041, Peoples R China 3.Sichuan Univ, Coll Life Sci, Chengdu 610064, Peoples R China 4.Guizhou Univ, Coll Anim Sci, Guiyang 550025, Peoples R China 5.Sichuan Coll Grassland Sci, Chengdu 610097, Peoples R China 6.Sichuan Agr Univ, Yaan 625000, Peoples R China 7.Int Ctr Integrated Mt Dev ICIMOD, Kathmandu 44600, Nepal
推荐引用方式 GB/T 7714	Cheng Wei,Sun Geng,Du Lin-fang,et al. Unpalatable weed Stellera chamaejasme L. provides biotic refuge for neighboring species and conserves plant diversity in overgrazing alpine meadows on the Tibetan Plateau in China[J]. JOURNAL OF MOUNTAIN SCIENCE,2014,11(3):746-754.
APA	Cheng Wei.,Sun Geng.,Du Lin-fang.,Wu Yan.,Zheng Qun-ying.,...&Wu Ning.(2014).Unpalatable weed Stellera chamaejasme L. provides biotic refuge for neighboring species and conserves plant diversity in overgrazing alpine meadows on the Tibetan Plateau in China.JOURNAL OF MOUNTAIN SCIENCE,11(3),746-754.
MLA	Cheng Wei,et al."Unpalatable weed Stellera chamaejasme L. provides biotic refuge for neighboring species and conserves plant diversity in overgrazing alpine meadows on the Tibetan Plateau in China".JOURNAL OF MOUNTAIN SCIENCE 11.3(2014):746-754.