Species Composition and Community Characteristics of Summit Mossy Dwarf Forests of Bozhu Mountain,Wenshan County,Yunnan,China
To complement and improve the community composition and structural characteristics of the summit mossy dwarf forests in Southwest China,based on the community survey data of the 1 hm2 forest dynamic plot(FDP),the Center for Tropic Forest Sciences(CTFS)standard was used to investigate all woody trees with DBH≥1 cm in the plot.Then,ten standard plots(a total of 0.6 hm2,20 m×30 m each)were selected from the 1 hm2 FDP,and all vascular plants within the 0.6 hm2 plot were investigated and counted by plant community inventory.The species composition and community structure were analyzed by the aspects of species richness and quantitative characters,and the diameter class structure of the dominant tree species.The main results were as follows:(1)there were 3 614 woody individuals from 42 species,32 genera,20 families,with DBH≥1 cm within the 1 hm2 FDP;in the 0.6 hm2 plot,there were 153 species of vascular plants in 42 families,72 genera and 1 502 individuals of 25 woody species with DBH≥3 cm;(2)Rhododendron sinofalconeri was the absolutely dominant in the community,with important values 3-4 times higher than those of the secondary dominant species;(3)The age structure of the whole community showed a"L"shape;however,the dominant Rhododendron sinofalconeri was adult,being different from other dominant species;(4)The community was composed of tree,shrub and herb layers as well as epiphytes and parasitic plants,namely Rhododendron sinofalconeri-Clethra delavayi var.yuiana-Illicium tsaii summit mossy dwarf forests.In the Bozhu Mountain,Wenshan county,Yunnan,China,the mossy dwarf forest community was rich in species,stable in composition and prominent in dominant species.The canopy appearance of the community was flat,and the community regeneration was in a mature forest state.
community structureDBH-class distributionRhododendron sinofalconerispecies composition
万方数据
维普
