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Author(s): |
Yun Lei, College of Life Science, Central China Normal University, Wuhan 430079, China
Zhengxiang Wang, College of Resource and Environment, Hubei University, Wuhan 430062, China
Guangli Ma, College of Life Science, Central China Normal University, Wuhan 430079, China |
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Abstract: |
We investigated the vegetation of sphagnum mire at Erxianyan in Western Hubei Province and analyzed the species composition, association types, dominance and importance value of species. The results show that the species composition and association type of the mire is relatively rich. 111 species of plants, belonging to 85 genera of 51 families, were recorded. The mire vegetation can be divided into 11 associations. Among these, there are 7 Sphagnum-dominated associations. Sphagnum palustre and Juncus setchuensis appears in all of the 7 Sphagnum-dominated associations. The average dominance of Sphagnum in the plots is 90.70%. The importance value of Sphagnum is greater than that of other species in 77.78% sample plots. The results suggested that by human’s interference the sphagnum mire at Erxianyan may be regressive succession in two paths: one is to be a community with single dominant species and exiguous species after drainage; the other is to be a weed community with abundant species but no dominant species by intensive interference.
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