安徽省县域公路交通与经济发展空间格局及耦合研究

交通与经济系统相互影响又互为合作,二者的良性反馈与循环是区域协调均衡发展的切实保证。基于安徽省77个县(市)域研究单元,利用公路交通路网和社会经济数据,借助交通优势度模型、经济发展水平综合评价模型和耦合协调发展评价模型,考量分析了公路交通和经济发展的空间格局及其耦合协调特征。结果表明:(1)安徽省县域公路交通路网密度北高南低,总体较优;交通可达性呈"单核"圈层分异;区位优势度呈"多核"圈层分异;交通优势度正介于"多核"向"单核"圈层转变的过渡状态。(2)各县(市)经济发展水平整体呈"金字塔型"分化,低发展水平单元基数较大;优势单元多集中于皖江城市带地域;地级市市辖区经济发展水平普遍高于周边县(市)。(3)全省县域公路交通与经济发展耦合关系整体良好,但协调度水平总体偏低,绝大多数县(市)公路交通发展超前经济。如何依托既有公路交通支撑,加快推进县域经济发展,是打造全省公路交通与经济协调发展新格局的关键。

Study on the Spatial Pattern and Coupling Degree of Highway Transportation and Economic Development of County Region in Anhui Province

As two interactive and cooperative systems, the positive feedback and circulation of the transportation and economy are the guarantee of regional coordinated and balanced development. In this study, 77 counties (cities) in Anhui province were selected as research units. Based on the highway transportation network and socioeconomic data, the spatial pattern of highway transportation and economic development of county region as well as their coupling-coordination characteristics in Anhui Province were analyzed by using relevant models for evaluation of the transportation superiority, economic development level and coupling-coordination development. Results show that the county level transportation network density of Anhui Province is generally well, higher in the north and lower in the south. The transportation accessibility and the regional superiority show a circle distribution of “single core” and “multi-core” respectively, while the distribution of the transportation superiority transfers from the “multi-core” to the “single core” circle.The economic development level of each county and city generally shows a “pyramid type” distribution, and the amount of counties (cities) with low-level development is relatively larger. The more developed counties or cities are located in the Wanjiang City Belt and the economy of prefecture-level cities is generally developed better than that of surrounding counties and cities. The overall coordination level of the county highway transportation and economic development is somewhat low in spite of their good coupling relationship. The highway transportation in most counties (cities) is developed much better than their economies. Our results indicate that how to accelerate the economic development of county region based on their existing highway transportation support is critical to the construction of the new spatial pattern of coordinated development between highway transportation and economy.