| Biology and Soil |
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| Ecological Species Groups Division Based on Interspecific Association: A case study in the Gurbantunggut Desert, Xinjiang, China |
| SONG Chun-wu1, JIANG Jin1, FAN Jing-long1, CHEN Jun-jie2, QUAN Yong-wei3, WANG Feng4 |
1.Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
2.Chendu Institute of Biology, Chinese Academy of Sciences, Chendu 610041, China;
3.Xinjiang Irtysh River Basin Development Engineering Construction and Management Bureau, Urumqi 830000, China;
4.Forestry Station of No.149 State Farm of Xinjiang Production and Construction Corps, Shihezi 832052, Xinjiang, China |
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Abstract In order to analyze the spatial change of species in different positions of dunes and the stability of Haloxyon persicum population, χ2 interspecific association test, association coefficient, and Spearman rank correlation coefficient were used to determine the interspecific associations in the Gurbantunggut Desert based on the 2×2 contingency table. The results are obtained as follows: 1) Among the 435 species pairs from both shrub and herb layers, few show significant χ2 association（P<0.05）: 12 pairs show highly significant association (P<0.01), 15 pairs show significant（P<0.05）, and the other 398 pairs show non-significant associations. 2) According to interspecific association and species correlation, the 30 dominant species were clustered into five ecological groups: 3 are from shrub layer, they are Group Ⅰ—Haloxyon persicum+Calligonum leucocladum, Group Ⅱ—Ephedra diotachya, and Group Ⅲ—Seriphidium terraealbae; 2 from herb layer, Group Ⅰ—Carex physodes+Erodium oxyrrhynchm+Alyssum linifolium+Ceratocarpus arenarius. Group Ⅱ—Horaninowia ulicina+Senecio subdentatus+Eremopyrum orientale. The species distribution characters of these ecological groups were also analyzed in this paper.
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Received: 11 May 2011
Published: 20 January 2012
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Cite this article:
SONG Chun-wu, JIANG Jin, FAN Jing-long, CHEN Jun-jie, QUAN Yong-wei, WANG Feng. Ecological Species Groups Division Based on Interspecific Association: A case study in the Gurbantunggut Desert, Xinjiang, China. JOURNAL OF DESERT RESEARCH, 2012, 32(1): 77-85.
URL:
http://www.desert.ac.cn/EN/ OR http://www.desert.ac.cn/EN/Y2012/V32/I1/77
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2012, Vol. 32 
