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Scientia Silvae Sinicae ›› 2005, Vol. 41 ›› Issue (1): 5-9.doi: 10.11707/j.1001-7488.20050102

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Effects of Clonal Plants on Community Structure and Function along a Restorational Gradient in Horqin Sandy Land

Zhang Jiyi1,Zhao Halin2,Cui Jianyuan2,Li Yulin2,Su Yongzhong2   

  1. 1.College of Petrolchemical Engineering, Lanzhou University of Technology Lanzhou730050; 2.Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences Lanzhou730000
  • Received:2003-02-09 Revised:1900-01-01 Online:2005-01-25 Published:2005-01-25

Abstract:

In this paper, the distribution of clonal plants in the restorational processes of grassland vegetation in Horqin sandy land,as well as its effects on community structure and function, was studied. In the restorational processes of vegetation, clonal plants(mainly phalanx clonal plants)are the driver of changes in community environment and make great contribution to the maintenance of community function. The high dominance of clonal plants probably results in decrease of species richness and species diversity in the community. Importance value of phalanx clonal plants is always higher than that of guerilla clonal plants in the restorational processes, suggesting that phalanx clonal plants are more adaptive to environment and more important to restoration of vegetation.

Key words: clonal plants, vegetation, restoration, Horqin sandy land