长江中游城市群城市土地利用效率与经济发展水平时空耦合研究

发布时间：2018-05-01 20:10

本文选题：城市土地利用效率 + 经济发展水平　；参考：《武汉大学》2017年硕士论文

【摘要】：目前,我国正处于城市化和工业化的快速发展阶段,城市规模盲目无序的扩张和长期的粗放型增长,使得长期以来我国城市土地利用效率低下,资源浪费极其严重,土地利用与经济发展不和谐的问题越来越突出。城市土地利用效率与经济发展水平紧密相关,两者相互影响、相互制约、相互促进。所以,两者的耦合协调对于促进经济社会生态环境的可持续发展具有重要推动作用。对长江中游城市群城市土地利用效率与经济发展水平的时空耦合进行研究,不仅能够反映城市土地利用效率与经济发展的互动关系,而且有助于实现土地可持续利用经济可持续发展的统一,从而促进长江中游城市群的整体健康发展。本文以长江中游城市群30个地市为研究对象,选取2002、2006、2010和2014年四个时间截面,运用DEA模型和熵值法分别对长江中游城市群的城市土地利用效率和经济发展水平进行测度和评价,并对其时空演变特征和变化趋势进行研究与分析,最后,在评价结果的基础上,引入耦合协调度模型对城市土地利用效率与经济发展水平之间的耦合协调关系进行实证研究,并对两者的耦合度和协调度的时空变化特征进行分析。得出以下结论:(1)长江中游城市群城市土地利用综合效率的均值和达到DEA有效的城市个数均呈现先上升后下降的趋势,城市土地利用纯技术效率的均值呈波动性上升趋势,而规模效率的均值则持续下降,且下降幅度较大。在DEA未达到有效的城市中,规模报酬递减的城市明显多于规模报酬递增的城市,减少投入冗余,实现规模效率,成为实现城市群城市土地利用效率提升的主流形态。(2)长江中游城市群城市经济发展水平的均值逐步上升,且经历了缓慢上升—急剧上升—稳定上升三个阶段,经济发展水平的标准差和变异系数均呈现先增加后减少的态势;经济发展水平较高的城市主要分布于区域中心城市及其外围或工业较发达的城市,呈现出小型集聚,部分零散分布的特征,而经济发展水平较低的城市主要集中分布于城市群的边缘或城市群内部三省交接的区域。(3)城市土地利用效率与经济发展水平的耦合度整体呈上升趋势,城市类型中以中、低度耦合城市为主,时间序列上表现为低度耦合的城市数在减少而较高度和高度耦合的城市数均有所增加,说明长江中游城市群城市土地利用效率和经济发展水平之间的相互作用程度越来越高;在空间格局上,高度耦合类型的城市分散分布,中度耦合和低度耦合类型的城市整体上集中连片分布,较高度耦合类型的城市空间分布上强烈依附于高度耦合类型的城市,且两者具有空间分布的年际变化的稳定性。(4)长江中游城市群30个地市的协调度类型包括优质协调、良好协调、中级协调、初级协调、勉强协调和濒临失调几种类型,其中勉强协调和濒临失调的城市数量所占比例较大。城市土地利用效率和经济发展水平的协调度总体偏低,但时间序列上呈现显著提升的态势,协调度总体状况趋于良性发展;从空间变化格局来看,协调程度高的城市在区域内分散分布,协调程度的时间序列上的变化在空间格局上,表现出由协调程度高的"中心"逐渐向"外围"扩散的趋势,且其扩散影响的程度在地理空间上具有较明确的方向性,协调程度高的城市仍为区域中心城市或经济发展水平较高的城市,而协调程度低的城市则分布于经济发展水平较低的区域。
[Abstract]:At present, China is in the rapid development stage of urbanization and industrialization. The urban land use efficiency is very low, the waste of resources is extremely serious, and the problem of land use and economic development is more and more serious. The efficiency of urban land use and the economic development have become more and more serious. The level of economic development is closely related to each other, mutual restriction and mutual promotion. Therefore, the coupling and coordination of the two will play an important role in promoting the sustainable development of the economic and social environment. The interaction between urban land use efficiency and economic development will help to realize the unity of sustainable land use and sustainable economic development, thus promoting the overall healthy development of the urban agglomeration in the middle reaches of the Yangtze River. This paper takes the 30 cities of the middle reaches of the Yangtze River as the research object, and selects the four time sections of the 200220062010 and 2014, and uses the DEA model. The model and entropy method are used to measure and evaluate the urban land use efficiency and economic development level of the urban agglomeration in the middle reaches of the Yangtze River respectively, and the characteristics and trends of its temporal and spatial evolution are studied and analyzed. Finally, on the basis of the evaluation results, the coupling coordination degree model is introduced to the urban land use efficiency and the economic development level. The coupling coordination relationship is empirically studied and the spatial and temporal characteristics of the coupling degree and coordination degree are analyzed. The following conclusions are drawn as follows: (1) the mean of comprehensive land use efficiency of urban agglomeration in the middle reaches of the middle reaches of the Yangtze River and the number of effective cities of DEA all show a trend of rising and descending first, and the pure technical efficiency of urban land use is all the same. The value is fluctuating, and the mean of scale efficiency continues to decline, and the decrease is larger. In the city where DEA has not reached the effective city, the cities with diminishing returns of scale are obviously more than the cities with increasing returns, reducing the redundancy and realizing the efficiency of scale. (2) The average value of the urban economic development level of the middle reaches of the Yangtze River gradually rises, and has experienced three stages of slow rising, sharp rise and steady rise. The standard deviation and variation coefficient of the economic development level all increase first and then decrease, and the cities with higher economic development level are mainly distributed in the regional central city and its periphery or its periphery. The more developed cities show small agglomeration and partial distribution, while the cities with low level of economic development are mainly distributed on the edge of urban agglomeration or in the areas of the three provinces within the urban agglomeration. (3) the coupling degree of urban land use efficiency and economic development level is on the rise as a whole, and middle and low in urban types. The number of cities with low coupling in time series is reduced and the number of cities with high and high coupling increases. It shows that the interaction between urban land use efficiency and economic development level of urban agglomeration in the middle reaches of the Yangtze River is becoming higher and higher; in the spatial pattern, the city of highly coupled type is dispersed. Distribution, medium coupling and low coupling types of cities on the whole centralized distribution, more highly coupled type of urban spatial distribution strongly attached to highly coupled cities, and the two have spatial distribution of the stability of the interannual change. (4) the coordination of 30 cities in the middle reaches of the Yangtze River, including good quality coordination, good coordination. There are several types of coordination, intermediate coordination, primary coordination, grudgingly coordinated and endangered, among which the proportion of urban number of barely coordinated and endangered cities is larger. The coordination degree of urban land use efficiency and economic development level is generally low, but the time series shows a significant rising trend, and the overall situation of coordination degree tends to be benign; According to the spatial pattern, the cities with high coordination degree are distributed in the region, and the time series of coordination degree changes in the spatial pattern, showing the trend that the "center" is gradually diffusing from the "center" to the "periphery", and the degree of its diffusion influence is clearly directional in the geographical space and the degree of coordination is high. Cities are still regional central cities or cities with relatively high economic development level, while cities with low coordination degree are located in areas with low economic development level.

【学位授予单位】：武汉大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：F224;F299.23

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