Sustainable Development Appraisal System Under Urban Forest Ecosystem

In the environment appraisal system, the urban forest sustainable development appraisal research is still in blank in our country. After thorough analysis of urban forest and the background,concept,development, recognization,benefits and characteristic of the sustainable development have been done, environment appraisal factors in appraisal system have been chosen according to the actual situation of our country,thus establish the appraisal cateria and design the computational method of the weigh proportion.The work has constructed the sustainable development appraisal system under the urban forest ecosystem, obtained sustainable development index computational method, and applied it in actual examples.The future research direction of this system has been discussed as well,which unifies the developing situation of the the sustainable development appraisal system under the urban forest ecosystem. This system can provide scientistical reference to region forest construction,and realize the sustainable development.It has forward-looking guiding sense to develope our country's urban construction for our government department.