POSITIVE GRASS DIVERSITY-PRODUCTIVITY RELATIONSHIPS AND CONTROLLING FACTORS ALONG AN ELEVATION GRADIENT IN CENTRAL ASIAN ALPINE GRASSLANDS

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	POSITIVE GRASS DIVERSITY-PRODUCTIVITY RELATIONSHIPS AND CONTROLLING FACTORS ALONG AN ELEVATION GRADIENT IN CENTRAL ASIAN ALPINE GRASSLANDS
	Li Kaihui; Fangmeier Andreas; Hu Yukun; Lu Chunfang; Liu Xuejun
刊名	POLISH JOURNAL OF ECOLOGY
	2012
卷号	60 期号:1 页码:123-131
关键词	CCA Tianshan Mountains grasslands species richness environmental factors
ISSN号	1505-2249
英文摘要	The productivity-diversity relationship in grasslands is of great interest with regard to species loss in natural ecosystems, where species extinction is not random but directed. We carried out a three-year investigation from 2005 to 2007 along an elevation gradient in alpine grasslands of Central Asia in an area of 70 x 20 km(2) at Bayinbuluk, Tianshan Mountains. We selected 9 sites (10 x 10 m(2)) and 117 plots (1 x 1 m(2)) from 2460 to 3260 m a.s.l. with 100 m intervals of altitude. Species richness, productivity, soil characteristics, air temperature and relative humidity (May-August) were recorded. The relationship between plant diversity and productivity was significant and positive. We used ordination techniques such as Canonical Correspondence Analysis (CCA) to examine the relationship between vegetation and the environmental factors. The results showed that plant species composition, species richness and productivity were significantly affected by air temperature, soil pH and relative humidity across the study area.
学科主题	Environmental Sciences & Ecology
收录类别	SCI
WOS记录号	WOS:000301696500009
公开日期	2012-11-29
内容类型	期刊论文
源URL	[http://ir.xjipc.cas.cn/handle/365002/1644]
专题	新疆理化技术研究所_资源化学研究室
作者单位	Chinese Acad Sci, Key Lab Biogeog & Bioresource Arid Land, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China;Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China;Univ Hohenheim, Inst Landscape & Plant Ecol, D-70593 Stuttgart, Germany;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China;China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China
推荐引用方式 GB/T 7714	Li Kaihui,Fangmeier Andreas,Hu Yukun,et al. POSITIVE GRASS DIVERSITY-PRODUCTIVITY RELATIONSHIPS AND CONTROLLING FACTORS ALONG AN ELEVATION GRADIENT IN CENTRAL ASIAN ALPINE GRASSLANDS[J]. POLISH JOURNAL OF ECOLOGY,2012,60(1):123-131.
APA	Li Kaihui,Fangmeier Andreas,Hu Yukun,Lu Chunfang,&Liu Xuejun.(2012).POSITIVE GRASS DIVERSITY-PRODUCTIVITY RELATIONSHIPS AND CONTROLLING FACTORS ALONG AN ELEVATION GRADIENT IN CENTRAL ASIAN ALPINE GRASSLANDS.POLISH JOURNAL OF ECOLOGY,60(1),123-131.
MLA	Li Kaihui,et al."POSITIVE GRASS DIVERSITY-PRODUCTIVITY RELATIONSHIPS AND CONTROLLING FACTORS ALONG AN ELEVATION GRADIENT IN CENTRAL ASIAN ALPINE GRASSLANDS".POLISH JOURNAL OF ECOLOGY 60.1(2012):123-131.