In order to understand the community structure characteristics and spatial distribution pattern of Fagus longipetiolata, and establish its adaptive protection measures, the community of F. longipetiolata in Guizhou province was investigated by the method of typical sites. The results showed that there were 103 species of vascular plants belonging to 77 genera in 50 families, among which ferns had 3 families, 3 genera, 3 species, and seed plants had 47 families, 74 genera, 100 species. There were 3 species of Gymnosperms belonging to 3 genera in 3 families; and there were 97 species of Angiosperms belonging to 71 genera in 44 families. The floristic components of the genus belonged to temperate zone. The importance value of F. longipetiolata (0.1702) in the tree layer was the highest, and it was a construction species. The importance value of F. longipetiolata was high in all groups, and it was dominant in the community. There was a bimodal distribution from grade Ⅰ to grade Ⅴ, and there were 63 and 31 plants in grade Ⅰ and Ⅴ, accounting for 47.73% and 23.48% of the total number of plants, respectively. The population was randomly distributed in grade Ⅰ, Ⅱ and Ⅲ saplings, and transitioned from random distribution to cluster distribution with the increase of diameter class. The dominant species Cyclobalanopsis glauca changed from cluster distribution to random distribution. Other dominant species were distributed randomly. The richness index of each community was shrub layer > tree layer > herb layer. Dominance index was tree layer > herb layer > shrub layer. H diversity index was tree layer > herb layer > shrub layer. The evenness index was tree layer > herb layer > shrub layer. The community of F. longipetiolata in Leigong Mountain had its own characteristics, so it was necessary to strengthen the protection of the existing F. longipetiolata community and further study on its population and community ecology.
杨礼旦，陈应强
. Characteristics and Distribution Pattern of Fagus longipetiolata in Leigong Mountain, Guizhou Province[J]. Subtropical Plant Science, 2022
, 51(6)
: 459
-473
.
DOI: 10.3969/j.issn.1009-7791.2022.06.006
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