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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
2012
发表期刊POLISH JOURNAL OF ECOLOGY
ISSN1505-2249
卷号60期号:1页码:123-131
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.
关键词Cca Tianshan Mountains Grasslands Species Richness Environmental Factors
学科领域Environmental Sciences & Ecology
收录类别SCI
WOS记录号WOS:000301696500009
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/1644
专题资源化学研究室
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
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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.
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