基于聚類方法的我國重點發(fā)展城市類型的選擇研究
[Abstract]:In recent years, the urbanization rate of our country has been increasing, while the small and medium-sized cities are developing to the big cities, some scholars think that the decreasing of the number and scale of the small and medium-sized cities in our country is an unstable state. Because the reduction in the number of small cities has not been supplemented by the number of small towns, it is believed that the goal of our country's current development should be how to develop small towns into cities or focus on developing medium-sized cities. Instead of continuing to focus on developing big cities. At the same time, because of the existence of "the disease of big cities", the phenomenon of anti-urbanization is becoming more and more common. In the United States, it has become an important factor for people to choose to settle down, and there is a tendency to match the trend of urbanization. Some scholars believe that the development of large cities should be limited. The practice of gradually reducing construction land for cities with a population of more than 5 million and delineating permanent basic farmland is somewhat consistent with this view. In view of this, this paper holds that the development of small cities is restricted by many factors, blind development will only lead to more problems, only the continuous development of large cities can gradually reduce the constraints of local conditions and fully integrate resources. To develop in a more stable, healthy way. In order to study the restrictive factors affecting the comprehensive level of different types of cities and select the more suitable urban types for the key development, this paper classifies the cities above the prefectural level into four categories by cluster analysis according to the comprehensive index. By using factor analysis method, the comprehensive factor scores of each city are obtained, which is used as the panel regression of the explained variables to discuss the effect of the influencing factors on the city in each stage. Namely from the comprehensive level performance characteristic and the influence factor two aspects carries on the contrast. Finally, it is found that the higher the level of urban comprehensive development, will be restricted in less aspects, and the extent of constraints is gradually reduced. At the same time, it is found that in the process of urban development, the marginal returns increase first and then decrease, and the marginal returns reach the maximum in the urban types with higher comprehensive development level, which should be developed with emphasis.
【學(xué)位授予單位】:北京交通大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:F299.2
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