The Evaluation On Urban Sustainable Development Capability Under The Carrying Mechanism And The Research On Countermeasures

With the rapid social and economic development, the relation of the city and human life becomes more closer. The need of human's sustainable exist and development requires that the urban development must be sustainable. It needs to grasp the key to the urban sustainable development actual strength competence, thus it may realise the total goals that promote the urban sustainable development capability. However, in order to strengthen the urban sustainable development capability, every city needs to remain the coordination of economic, resource, environment and the society. So it seems urgent and very important that we make comprehensive evaluation on the urban sustainable development capability and provide the theory supporting to the policy decision on making the urban sustainable development strategy.This paper firstly introduces the basic theory on the urban sustainable development under the carrying mechanism. It summarizes the present situation of the domestic and aboard urban sustainable development, and confirms that the theory research on the urban carrying mechanism is the important part of the evaluation on the urban sustainable development capability. Then under the promotion to the economic and environment coordination, it analyses each essential factor that effects the urban carrying mechanism, which are social and economic variable, urban resources variable and urban environment variable. Based on their mutual relations each other and the theory on the urban carrying mechanism, we establish an appraisal system of index based on the aspects of pressure level, supporting capability and restrainable capability. Then on the basis of the traditional evaluation methods, we draw into the theory of Extenics, and establish the Extenics comprehensive evaluation model in the light of the urban sustainable development characteristic and the actual situation. All these can provide the operational methods for the sustainable development grade dividation to the city. Simultaneously we make the authentic proof research with the urban data in Shandong Provence, and their urban sustainable development capability is appraised resonably. Finally we put forward the countermeasures from four aspects to the urban sustainable development in view of the appraisal result. The paper has achieved such progress as:(1)Establishing an appraisal system of index on urbansustainable development.In the light of fruit summed up byour predecessors, according to the urban carrying mechanism theory, we establish an appraisal system of index and make a detailed analysis.(2)Puting forward the Extenics comprehensive evaluation model in view of urban sustainable development.We apply the Extenics theory to the urban sustainable development evaluation. In the following we put forward the Extenics comprehensive evaluation model. The practice proved that this model is practical on the domain of the urban sustainable development evaluation.(3)Approaching the countermeasure from different angles to promote the urban sustainable development capability.By means of the research on the model evaluation, we point out the key factor and the issue we pay attention to in the urban construction. On the other hand, we put forward the corresponding countermeasures. It plays an important part in the urban sustainable and coordinated development.