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

	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 ; Sun Geng ; Du Lin-fang ; Wu Yan ; Zheng Qun-ying ; Zhang Hong-xuan ; Liu Lin ; Wu Ning
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2014
卷号	11 期号:3 页码:746-754
关键词	Stellera chamaejasme L. Facilitation Unpalatable weed Alpine meadow Tibetan Plateau
通讯作者	Sun, G (reprint author), Chinese Acad Sci, Chengdu Inst Biol, Key Lab Mt Ecol Restorat & Bioresource Utilizat, Chengdu 610041, Peoples R China.
产权排序	1
合作状况	其它
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.
学科主题	Environmental Sciences
收录类别	SCI
语种	英语
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/26534]
专题	成都生物研究所_生态研究
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.