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JOURNAL OF DESERT RESEARCH  2013, Vol. 33 Issue (6): 1705-1710    DOI: 10.7522/j.issn.1000-694X.2013.00255
Biology and Soil     
Characteristics of Soil Seed Bank and Seedling Bank in the Flooded Areas in the Lower Reaches of Tarim River
FU Jin-yi1,2, XU Hai-liang1, AN Hong-yan1,2, ZHAO Xin-feng1, BAI Yuan1,2
1.Key Laboratory of Oasis Ecology and Desert Environment, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
2.University of Chinese Academy of Sciences, Beijing 100049, China
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Abstract  

Based on the germination experiment of soil seed bank and the field survey of seedling bank, the characteristics of both in the flooded areas in the lower reaches of Tarim River and their differences were analyzed. Additionally, several ecological factors under different microrelief conditions were also compared. The results showed that: (1) There are 11 families, 21 genera, and 22 species discovered in both soil seed bank and seedling bank. The density of soil seed bank is 681±166 seed\5m-2, and the density of seedling bank is 74±30 plant\5m-2. Herbaceous perennial dominates in both soil seed bank and seedling bank. (2) The Margalef index of soil seed bank is larger than seedling bank significantly, while its Simpson index and Shannon-Wiener index are larger than the seedling bank slightly. The similarity index of two is 0.553. (3) Under different microrelief conditions, the differences exit in those of density and diversity indexes of both, but on the whole the values of ecological factors of soil seed bank are all larger than those of seedling bank.

Key words:  soil seed bank      seedling bank      flooding disturbance      microrelief      Tarim River     
Received:  16 July 2012      Published:  10 August 2012
ZTFLH:  Q948.13  

Cite this article: 

FU Jin-yi1,2, XU Hai-liang1, AN Hong-yan1,2, ZHAO Xin-feng1, BAI Yuan1,2. Characteristics of Soil Seed Bank and Seedling Bank in the Flooded Areas in the Lower Reaches of Tarim River. JOURNAL OF DESERT RESEARCH, 2013, 33(6): 1705-1710.

URL: 

http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00255     OR     http://www.desert.ac.cn/EN/Y2013/V33/I6/1705

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