Abstract:
In order to evaluate landscape quality of vegetation community,twentyone appraisal indexes were selected and analysed by method of the factoranalysis weight. The weight coefficients varied from 0018 4 to 0084 6 and the highest weight coefficient was color richness(0084 6),while the lowest weight coefficient was herb height(0018 4). Landscape quality of sixteen vegetation communities in five Suburban Parks of Beijing was evaluated by gray relational analysis method. The result showed that the correlation degrees varied from 0440 4 to 0663 3. Populus tomentosa+Fraxinus chinensis Comm.(γ=0663 3),Ginkgo biloba Comm.(γ=0629 6),Populus tomentosa Comm.(γ=0624 6) and Robinia pseudoacacia Comm.(γ=0564 5) were the closest to the ideal vegetation community, while Eucommia ulmoides Comm., Salix matsudana and Pinus tabuleeformis Comm. were the worst.