Study On The Urbanization And Its Coupling With The Urban Forest Ecosystem In Changsha

Urban forest plays the important part in urban ecosystem and the complete establishment of urban forest ecosystem is an important and comprehensive method to solve different kinds of eco-diseases. Urbanization threatens the urban ecosystem, meanwhile restrained by the system. It is the interconnection that promotes the urbanization to develop in harmony with the urban forest.This article focuses on the current development of Changsha's urbanization and urban forest, selectively analyzing the problems that urbanization produced and the effect that urban forest makes in improving the urban ecosystem. Through research, the interconnection between urbanization and forest ecosystem has been obtained; the problems and deficiencies have been discussed and the measures for sustainable development have been proposed. The content mainly includes the following several respects.(1)The current situation of civilization and civic forest development in Changsha. At present, Changsha's civilization grows fast, but the construction of civic forest development is quite slow. The green field cannot meet the demands of actual residence. Thus, the dense construction, the deficiency and unequally distributed civic greenfield as well as the shortage of per capita public greenfield have made a negative impact on civic eco-environment.(2)The analysis of Changsha's civilization and civic forestry coupling effect. Civilization and civic forest development is two different subsystem of forest development. To extract the part of the factors for qualitative analysis, In two subsystem many factor interaction, mutual feedback, intercoordination and mix together,they make a more complex ecosystem.(3) The establishment of coupling index system and analysis of cooperation. Part of the index about the urbanization and urban forest has been extracted by the means of factor analysis. The index program of coupling system has been established in the method of combination of qualitative analysis and quantitative analysis while model of coupling factor is constructed by the means of gray relative analysis method so as to reveal the main factors to the coupling of urbanization and urban fore-eco system in Changsha City. It makes a comparison among the latest 5 years'different couplings in Changsha.(4) Analysis of the results and discussion of countermeasure. Urbanization and environment are not born to oppose to each other. And facts show that the acceleration of urbanization will not necessarily lead to the worsening of urban eco-system while the key is how to make better use of advantages brought by the urbanization. Taking consideration of Changsha's urban construction, we should set a goal for the construction of sustainable urban forestry. Besides, it may also provide a good practice and research basis in Changsha's urbanizing development and do some strategic good to promoting the Economic Integration of Changsha, Zhuzhou and Xiangtan so as to push forward the sustainable development of economy in the three cities and even in Hunan Province.The urbanization and the civic forest construction involve the issues of society, economy, environment, healthy level and happiness index. Because of the incomprehension of choice and consideration, the analysis of coupling cannot reveal all aspects of Changsha's urbanization and the level of its civic forest construction. It needs to be further developed.