Abstract: The degraded vegetation around Tiantong contains five types of communities, such as earlier degraded community of EBLF, deciduous broadleaved forest community, coniferous and broadleaved mixed forest community, conifer forest community and shrub community. Based on the analysis of floristic compositions, geographical elements and characteristics of the flora, the major characteristics of the flora are as follows: (1) There are 72 families, 138 genus and 204 species in this regional flora of degraded vegetation. Because of the influence of human′s activity, degraded vegetation contain a comparatively lower floristic species richness than that of EBLF community; (2) The floristic characters are conspicuous for temperate and tropicalsubtropical element,which represents a transitional pattern of distribution from subtropical to temperate; (3) Destructions of vegetation lead to the number of endemic to China decreasing; (4) Although five types of degraded communities are different from each other in characteristics of floras, they maintain floristic characteristic and geographic elements of EBLF. These results show that the degraded vegetation around Tiantong has potential ability for nature restoration.

Key words: geographical arealtypes, degraded vegetation, Tiantong National Forest Park, flora, geographical arealtypes, degraded vegetation, Tiantong National Forest Park