Analysis of the Community Structure of Sorbus alnifolia in Huangshan Mountain
Objective]The aim of this paper was to understand the structure of Sorb us alnifolia in Huangshan and to provide a basis for its protection and development.[Method]Species composition and community structure of S. alnifolia was analyzed by typical sampling plot method.[Results]①There were 132 vascular plants,which belonged to 98 genera and 87 families in the 3 200 m2 quadrats;②Important value analysis showed that Pinus taiwanensis and Sasa sinica in the tree layer and shrub layer were more dominant, with a coverage of 21.47%and 26.99%,respectively;③The genera of community flora could be divided into 11 distribution types and north temperate zone plate as the main component. The world distribution Pantropic and East asian element assume a definite proportion and the plant flora had evidently characteristics of transition;④Phanerophytes(52 species of plants)were dominant in the life- form , followed by chamaephytes and hemicryptophytes;⑤According to the analyses of Raunkiaer frequency law,species abundance pattern was vided into five grades(A﹥B﹥C﹤D﹥E). ⑥The species were uneven distribution in the community. [Conclusion]The species in Sorb us alnifolia community of Huangshan was abundant. The competition of shrub layer was fierce. If there was no sufficient regeneration seedlings, S. alnifolia would be degraded.
Huangshan MountainSorb us alnifoliacommunity structure
NETL
NSTL
万方数据
维普
