Based On The Smart Growth Of Nanjing Urban Growth Evaluation And Optimization Research

The Smart Growth is an urban planning and management theory proposed by the USA planning circles for coping with the unordered pervasion and the land resources and environment issues caused by which in the suburbanization course in the late1990s, and plays an effective role in the practice. By entering into the21st century, the land resources get the destructive growth, the urban and ecological environment and the living quality deteriorates as the China’s urbanization speeds up, the urban land consumption increases hugely and China’s extensive urbanization pattern develops, so it is very urgent to select the appropriate and rational urban space expansion strategy to guide China’s urbanization construction to develop healthily and orderly. Currently there are many theoretical researches and quotations for the smart growth in China. Although these researches are made deeper and deeper, most of them are limited to the qualitative introduction and analysis and lack of the learning and reference how to evaluate the smart growth quantificationally. Based on the analysis on the western theories and the practices on the smart growth, the paper selects Nanjing, a regional central city in the developed east area of China as an example and establishes the evaluation index system suiting for the smart growth of China by borrowing the domestic and overseas experiences. Upon the integrated evaluation on the smart growth of Nanjing and other36provincial-level cities in China in the past15years, the paper analyzes the major elements and the internal mechanism affecting the urban smart growth, and proposes the strategic measures and proposals for optimizing the urban growth of Nanjing according to the analysis on the natural and historical urban growth of Nanjing.Firstly, the paper studies and summarizes the smart growth theory and practice analysis (Chapter1,2and3); in which the theoretical connotation is tapped and explored deeply, and the research angle for the substance space is turned into the efficient use of the urban space and the improvement on the urban space quality; secondly, the paper sorts out the urban space growth process of Nanjing historically and systematically from its natural conditions, social economic development and policy guides, and analyzes the main factors affecting its urban space growth (Chapter4); additionally, by borrowing the existing research achievements of the domestic and overseas scholars and the urban reality of China, the paper establishes a practically and purposely integrated evaluation indicator framework for the urban smart growth from urban growth intensity, urban growth benefit and urban growth harmony level; finally, the paper analyzes the smart growth status and changes of Nanjing among the same cities in whole China in a quantitative mode by referring to the provincial capital cities, municipalities directly under the Central Government and the sub-provincial cities in China (Chapter5), and thence provides the corresponding policy measure proposals for the future urban smart growth of Nanjing in the view of defining urban growth border, optimizing town layout structure, enhancing public transit priority and implementing public administration policies in accordance with the evaluation on the natural conditions and the analysis on the urban development demands of Nanjing, as well as the overall urban planning layout and the smart growth evaluation of Nanjing (Chapter6).The main conclusions of the paper are:it is an inevitable choice for China’s urban development to expand and grow the urban space based on the smart growth; the essence of the smart growth is to adjust and control the urban expansion integrated strategy; the space expansion mode of Nanjing for its construction land is needed to optimize. Nanjing is located in the developed east area with tight people-land relation and weak ecological environment, where there are sharp conflicts between its economic and urban development and its farmland protection and ecological protection, and the land resources environment and social issues highlight in the rapid urban restructure process. Therefore, it is more urgent to select the smart urban growth. The specific strategies are as follows:based on the smart growth strategy, select the metropolitan area as the future social and economic development focus of Nanjing, establish the town growth border, protect the basic farmlands and ecological lands; in view of the construction land expansion in the metropolitan area, select the leap and grouped expansion pattern to form the multi-center metropolis space layout and protect the ecological space and the scenic spot resources with ecological safety significance according to the environmental condition with the dense hills and rivers. It is key to solve the future urban growth issues of Nanjing by integrating with the implementation on the smart growth strategy to push the urbanized area of Nanjing for smart growth.Innovations of the paper:The paper explores the adaptability of the Smart Growth on the regulation of China’s urbanization process, establishes a set of comprehensive smart growth evaluation index system suited to China’s urban characteristics,puts forward the comprehensive urban smart growth strategy suitable for China’s big cities. The smart growth strategy has not only the active optimization and adjustment role for the rational expansion of urban space, but also the active role in pushing the coordinated development of the society, economy and ecological environment of the whole city. Based on the adjustment, control, practice and analysis on the domestic and overseas urban space expansion from the viewpoint of the smart growth, the paper summarizes the space expansion characteristics and the changes in the corresponding regulation and control ideology at the urbanization speed-up stage, and provides the reference opportunity for the urban space expansion of China oriented by GDP and deviated from the fundamental realities, resource-environment base and urbanization requirements. Based on the analysis on the urban space growth history and environmental viewpoint of Nanjing from the viewpoint of the smart growth and by integrating with the evaluation on the integrated performance of the urban smart growth, as well as the quantitative analysis and orientation on the urban growth intensive level of Nanjing among the same cities in whole China, the paper provides the proposals for optimizing the urban growth of Nanjing.