The impact of tourist activity on species diversity in different vegetable layers in the Dragon Palace scenic spot

The scenic spot is divided into active zone(AZ), buffer zone(BZ) and contrast zone(CZ) according to the tourist active level in this paper. The impacts of tourism activities on species diversity in different vegetable layers in Dragon Palace scenic spot are analyzed in light of 6 indexes of species diversity. Along with the increasing of tourist number and the strengthening of infrastructure construction in the scenic area, plant species get less and less, diversity decrease and structure become simpler. And it mainly present that: 1) in the arborous layer, species richness is the maximum in BZ and the minimum in AZ, while the species evenness is the maximum in AZ and the minimum in BZ, and species diversity is maximum in CZ and minimum in AZ, the degree of ecological dominance is the maximum in CZ and the minimum in AZ; 2) in the shrub layer, species richness is the maximum in BZ and the minimum in AZ, while the species evenness is the maximum in CZ and the minimum in BZ, and species diversity is maximum in CZ and minimum in AZ, the degree of ecological dominance is the maximum in CZ and minimum in AZ; 3)in the glass layer, species richness is the maximum in BZ and the minimum in CZ, while the species evenness is the maximum in BZ and the minimum in CZ, and species diversity is maximum in BZ and minimum in CZ, the degree of ecological dominance is the maximum in BZ and the minimum in CZ.