| Metropolitan suburb is one of the areas where are the most profoundly influenced by urbanization. Huge demand of construction land caused to significant reduction of agricultural land, especially the cultivated land resources in suburb, which strongly affected on the sustainable development of agriculture. And yet, it is very vital that suburban agriculture ensure the public's security of "vegetable basket" and improve urban eco-environment, etc.Therefore, how to develop suburban agriculture is an important subject in the background of the rapid urbanization in shanghais suburbs. And first of all, we must deeply understand the process of the interactive development of between agriculture and urbanization. Only in this way, we could accurately find specific problems existed in the interactive evolvement of between agricultural structure adjust and urbanization development, and put forward feasible measures of agricultural sustainable development in shanghai suburbs. This is just as point of tangency of this dissertation. Based on the outskirts of Shanghai as the study area, according to history, present situation, future and theory, empirical research, countermeasures as a logic line, first of all, with adoption of relative theory and document, this thesis defined the scope of Shanghai suburbs, and concept of agricultural structure and the urbanization, and briefly discussed dialectical relationship of the interactive development of between agriculture and urbanization.Then based on large amount historical data, rooted in Statistic Yearbooks of Shanghai and its suburbs and the survey data, with the methods of combining comparative analysis and historical analysis, the theory study and the empirical analysis, this thesis probed in the characteristics of agricultural structure restructuring, and deeply analyzed the main factors influenced agricultural structure restructuring in Shanghai suburb since1949.And in order to realize harmonious and sustainable development of the agricultural development and urbanization, and quantitative evaluated the degree of coordinated development of between agriculture and the urbanization in Shanghai suburb with the methods of AHP, etc since the reform and opening up. Finally, combined with practical experiences of the coordinated development of agriculture and urbanization in the Netherlands, Japan and other developed region, the thesis expects future direction to agriculture development, and puts forward some incentives for balancing development between modern agriculture and urbanization in Shanghai suburb.The main contents and conclusions are as follows.In the first section, the paper expounded background and significance, and introduced the general framework, thoughts, methods and innovations.In the second section, the paper made a brief analysis and sum-up on the domestic and international document, and basic theory of the related relationship of between the agricultural structure restructuring and urbanization. We made a theoretical analysis on the general mechanism of the related development of agricultural structure restructuring and urbanization, and cleared their logical path. All of these were made a theoretical foundation for empirical research.In the third section, the process of agricultural development and suburban urbanization was divided into3stages (that is1949-1978,1979-1992,1993-2009) with the adoption of methods combining qualitative analysis and quantitative evaluation, based on Shanghai suburbs statistical yearbook data since1949. And we systematically straightened out the evolution characteristics of agricultural structure restructuring under the different development stage of suburb urbanization in Shanghai, and looked for some problems existed in interactive development of between agricultural structure restructuring and urbanization.In the fourth section, we profoundly analyzed the evolution characteristics of the agricultural production space layout on the basis of three of the relevant data section--1980,1993and2009year, mainly on the scale of counties and towns in Shanghai suburbs.In the fifth section, we studied the influenced mechanisms on agricultural structure restructuring under the process of suburb urbanization in Shanghai. The forming mechanisms were mainly involved in the economic system reform, the consumption structure, township enterprises, agricultural industrialized management, agricultural policy measures, population growth and technological advance and so on.In the sixth section, the comprehensive evaluation target systems of the coordinated development of between agricultural structure restructuring and urbanization were founded on the basis of principles of scientific, comprehensiveness, purpose, feasibility and independence. It is made up of agricultural resources, agricultural technology, agricultural economy agricultural environment, population urbanization, economy urbanization, society urbanization and ecology urbanization nine subsystem including31indices.This paper took Analytic Hierarchy Process of the methods to define the significance of indicator system, and to define weight of each indicator based on the judgment matrix constructed by experts. The index weight was modified based on Entropy method. By means of measurement and assessment of the index system and on basis of the related software support, we evaluated and analyzed sustainable development ability of each subsystem since1985. Disadvantages of the coordinated development of between agricultural structure restructuring and urbanization could be discovered, which could provide strategy on basis of setting up relevant policies.In the seventh section, we deeply analyzed the interactive development process of agricultural structure restructuring and urbanization in the Netherlands, Japan and other countries, and further summarized useful experience on the interactive development of agricultural structure restructuring and urbanization in these regions. It will be helpful to promote sustainable development between agriculture and urbanization in Shanghai suburbs.In the eighth section, according to the evaluation results and the international experiences, the paper put forward to the prospective target and functions of agriculture development, and established the direction of the agricultural structure restructuring and spatial distribution under the background of urbanization in Shanghai suburb. At last, the paper provided some incentives for balancing development between modern agriculture and urbanization in Shanghai suburb.
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