高铁网络可达性测度及经济潜力分析——以安徽省为例

高速铁路的开通给沿线城市的建设带来了重大影响。基于可达性测度以及修正的经济潜力模型,利用GIS对安徽省高铁可达性以及经济潜力进行深入分析。研究表明:(1)高铁开通后安徽省可达性显著提高,但总体格局保持不变,呈现出以合肥为中心,淮南、芜湖等地为副中心的"多核心"模式。池州、铜陵两城市可达性上升幅度最大,黄山紧随其后,芜湖、滁州变化最小。高铁开通后,滁州可达性排名下降5名,下降幅度最大,合肥、淮南、黄山最为稳定,其他城市均有小幅变化。(2)可达性的提升对城市经济潜力造成了一定影响,总体呈现出以合肥为中心的外围扩展模式。池州、铜陵经济潜力增长最为显著,黄山位列第3,可达性的提升直接影响了池州、铜陵、黄山三市的经济发展。高铁开通后,合肥、芜湖经济潜力排名始终位于前二,传统经济中心地位不变。马鞍山排名上升4名,幅度最大,池州、黄山两市处于末端,经济潜力仍然较为薄弱。(3)高铁开通后,时空收敛效应明显,可达性的提升令城市经济潜力增长显著,但受多方面因素影响,可达性与经济潜力呈现不完全契合关系。

ACCESSIBILITY MEASURE AND ECONOMIC POTENTIAL ANALYSIS OF HIGH-SPEED RAIL NETWORK IN ANHUI PROVINCE

The opening of high-speed railways has made a significant difference in the construction of cities along the railway.Based on accessibility measurement and modified economic potential model,an in-depth analysis of the accessibility and economic potential of high-speed railways in AnhuiProvince was conducted through using GIS.The research results are shown as follows:①Afier the opening of high-speed railways,the accessibility of Anhui province significantly improved,but the overall pattern remained unchanged,which took on a "multicore" mode centering on Hefei and taking Huainan and Wuhu as sub-centers.The accessibility of Chizhou and Tongling improved to the largest degree,followed by Huangshan;the change of Wuhu and Chuzhou in accessibility was the smallest.After the opening of high-speed railways,the accessibility of Chuzhou decreased to the largestdegree,ranking the fifth;Hefei,Huainan and Huangshan were the most stable cities;other cities changed slightly.②The improvement of accessibility had a certain effect on the economic potential of the city;generally,a peripheral expansion mode centering on Hehui was presented.The economic potential growth in Chizhou and Tongling was the most significant;Huangshan ranked the third.Obviously,the improvement in accessibility had a direct impact on the economic development of Chizhou,Tongling,and Huangshan.After the opening of high-speed railways,Hefei and Wuhu ranked the second in terms of economic potential,and their status as traditional economic center didn't change.The economic potential in Ma'anshan increased to the largest degree,ranking the fourth.But for Chizhou and Huangshan,their economic potential was still relatively weak,ranking last.③Afier the opening of high-speed railways,the time-space astringency effect was significant.The improvement of accessibility dramatically promoted the growth of economic potential,but affected by many factors,the relationship between accessibility and economic potential was not fully harmonious.