关中—天水经济区公路交通网络演化与经济发展研究

发布时间：2018-10-12 14:44

【摘要】：交通与经济的关系一直备受众多学者的关注，交通可达性是度量交通网络结构的有效指标之一。但是以往的研究多是从静态角度、用单一指标，方法分析，探讨指标变化间的相关关系则较少。本文以关中—天水经济区55个县（市）为研究对象，首先用GIS网络分析方法分析了关中—天水经济区各县域公路交通可达性格局及其演变，再用主成分分析法对关中—天水经济区县域经济发展的状况及演变特征进行评价，在此基础上分别用灰色关联度方法和弹性系数分别探讨了可达性变化与经济发展变化的关联程度及协调程度，得出以下的结论：（1）关中—天水经济区可达性总体格局呈现出以西安、咸阳为中心的“核心—外围”模式；西安、咸阳及周围县域单元一直位于可达性最好的区域；可达性变化却呈现出与可达性相反的格局。在交通可达性变化上，经济区边缘地区可达性提高程度大于中心地区，公路网络演变的过程中，边缘地区可达性变化比较显著。（2）关中—天水经济区经济发展水平呈现以西安、咸阳为中心，向周围递减的“核心—外围”模式。从1999年到2009年，各县域单元的经济发展变化水平呈不连续的分布状况，，经济区的西部县域经济发展变化水平高于整个地区，东南部县域单元经济发展变化相对迟缓。（3）在不同时期，各项经济指标与交通可达性的关联程度不同，阶段性的数据表明财政收入、经济密度、县域经济综合实力等指标的变化与可达性变化的关联性较强。（4）交通可达性与经济发展具有高度的协同性。从1999年和2009年的数据分析，表明交通可达性较好的地区其经济发展水平也较高；同时交通可达性变化与经济综合实力增长也呈现较高的相关性。不同县域单元交通运输与经济增长的协调程度不一。受自然条件的制约以及各地所处的经济发展阶段的不同，各县域单元的公路交通运输可达性与当地的经济增长的弹性系数差异显著。
[Abstract]:The relationship between traffic and economy has been concerned by many scholars. Traffic accessibility is one of the effective indicators to measure traffic network structure. However, the previous studies are mostly from a static point of view, using a single index, method analysis, to explore the correlation between index changes is less. In this paper, 55 counties (cities) in Guanzhong Tianshui Economic Zone are taken as the research objects. Firstly, the traffic accessibility pattern and its evolution in each county area of Guanzhong Tianshui Economic Zone are analyzed by using GIS network analysis method. Then using principal component analysis method to evaluate the state and evolution characteristics of county economic development in Guanzhong-Tianshui Economic Zone. On the basis of this, the degree of correlation and coordination between the change of reachability and the change of economic development are discussed by using the method of grey correlation degree and elastic coefficient, respectively. The main conclusions are as follows: (1) the overall pattern of reachability in Guanzhong Tianshui Economic Zone presents the "core and periphery" pattern with Xi'an and Xianyang as the center, Xian, Xianyang and its surrounding county units are always located in the area with the best reachability; The change of reachability presents a pattern opposite to that of reachability. In the change of traffic accessibility, the degree of improvement of accessibility in the edge of economic zone is greater than that in the central area, and in the process of highway network evolution, (2) the economic development level of Guanzhong-Tianshui Economic Zone presents a "core-periphery" pattern with Xi'an and Xianyang as the center and decreasing toward the periphery. From 1999 to 2009, the level of economic development and change in each county unit was discontinuous, and the level of economic development in the western region of the economic zone was higher than that in the whole region. The economic development of county units in southeastern China is relatively slow. (3) in different periods, the correlation between economic indicators and traffic accessibility is different. The change of comprehensive strength of county economy is closely related to the change of reachability. (4) there is a high degree of synergy between transportation accessibility and economic development. From the data analysis of 1999 and 2009, it is shown that the economic development level of the areas with good traffic accessibility is also higher, and the change of traffic accessibility has a high correlation with the growth of economic comprehensive strength. The coordination degree of transportation and economic growth of different county units is different. Under the restriction of natural conditions and the different stages of economic development in different regions, the road transportation accessibility of each county unit is significantly different from the elastic coefficient of local economic growth.
【学位授予单位】：西北师范大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：F542;F127

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