The altitude pattern of woody plant diversity of Xingdoushan
HU Xiao-yan, AI Xun-ru, SANG Wei-guo, XUE Da-yuan*
1. College of Life and Environmental Science, Minzu University of China, Beijing 100081, China; 2. College of Forestry and Horticulture, Hubei University for Nationalities, Enshi 445000, China; 3. Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
The woody plant species richness, community diversity and spatial distribution features were analyzed based on sampling plots in Xingdoushan Nature Reserve, Hubei, China. The research also took Rapoport's altitude rule as a case study. Results showed that the forests in Xingdoushan consisted of multi-species dominant communities. The trees whose importance values were more than 15 included Cunninghamia lanceolata, Phoebe zhennan, Tetracentron sinense, and Cyclobalanopsis glauca. The physiognomy of the community changed with elevations. The α diversity, presented by the Simpson and Shannon-Weiner indices, decreased for both the tree and shrub layers with increasing altitude. The β diversity, which was indicated by the Cody index, declined with increasing altitude. These patterns supported Rapoport's altitude rule. Furthermore, the species diversity was significantly different among aspects. The Simpson index was the highest in the east and northeast aspect, followed by west, and the lowest in north aspect. The species diversity of shrub layer was higher than the tree layer at same forest community due to environment differences in canopy layers.
胡晓燕, 艾训儒, 桑卫国, 薛达元*. 星斗山木本植物多样性沿海拔的格局[J]. , 2013, 32(4): 439-446.
HU Xiao-yan, AI Xun-ru, SANG Wei-guo, XUE Da-yuan*. The altitude pattern of woody plant diversity of Xingdoushan. , 2013, 32(4): 439-446.
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