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JOURNAL OF DESERT RESEARCH
Biology and Soil     
Plant Species Diversity and Dominance Population Niche Characteristics at Different Sites in Southern Gurbantunggut Desert
BAN Wei-qiang1, YAN Cheng1, YIN Lin-ke1, YANG Mei-lin1,2, WANG Zhong-chen3
1.Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
3.Environmental Development Center of Ministry of Environmental Protection, Beijing 100029, China
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Abstract  

Based on field surveying data in spring over southern Gurbantunggut Desert, Richness index, Shannon-Wiener index, Simpson index, Pielon index, Whittaker index, Cody index, niche breadth and niche overlap value were used to analyze the plant species diversity and dominance population niche characteristics. Results showed that: (1) Plant communities at different sites in southern Gurbantunggut Desert all were shrub-herb mode and the dominance species were Haloxylon ammodendron, Haloxylon persicum, Calligonum leucocladum, Stipagrostis pennata, Alhagi sparsifolia, Reaumuria soongorica, Lappula semiglabra, Agriophyllum squarrosum and Corispermum lehmannianum. (2) The α-diversity indices at different sites were different because of different environments. (3) Whittaker index and Cody index data showed that β-diversity index at different sites can be divided into two gradients. The first gradient was at top of dune, windward slope and upside of leeward slope, and the second gradient was at the other sites. (4) The dominance populations with high niche breadth had high niche overlap value. When we restore the vegetation in southern Gurbantunggut Desert, appropriate Haloxylon ammodendron planting density is needed, and other plant, e.g. Stipagrostis pennata, can be planted to increase species diversity.

Key words:  site      plant species diversity      dominance population      niche      Gurbantunggut Desert     
Received:  17 February 2012      Published:  16 April 2012
ZTFLH:  Q948.15  

Cite this article: 

BAN Wei-qiang1, YAN Cheng1, YIN Lin-ke1, YANG Mei-lin1,2, WANG Zhong-chen3. Plant Species Diversity and Dominance Population Niche Characteristics at Different Sites in Southern Gurbantunggut Desert. JOURNAL OF DESERT RESEARCH, 2012, 32(6): 1632-1638.

URL: 

http://www.desert.ac.cn/EN/     OR     http://www.desert.ac.cn/EN/Y2012/V32/I6/1632

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