本文运用场强模型,在时间可达性的基础上,研究了在不考虑权重和考虑权重两种情况下,南京都市圈城市吸引范围的演变,在此基础上提出了南京都市圈的发展建议。得出的结论如下:1城市的吸引范围与行政区范围不完全一致,城市吸引范围扩展至江北的沿江城市有芜湖和镇江。2不考虑权重的情况下,南京、芜湖的吸引范围总体增长,扬州、镇江、巢湖、滁州、马鞍山的城市吸引范围总体下降,淮安的城市吸引范围变化不大。3考虑权重的情况下,南京和芜湖的城市吸引范围上升,淮安、镇江、巢湖的城市吸引范围下降,扬州、滁州、马鞍山的城市吸引范围波动下降。南京的城市吸引范围占南京都市圈的绝对优势。4建议芜湖、马鞍山等沿江城市进一步完善过江通道,实现沿江城市的跨江发展;通过加快交通建设和淡化行政界限,增强城市间联系;根据城市吸引范围调整行政区划,如拆分巢湖并入芜湖、马鞍山等城市,句容并入南京市。

On the basis of time accessibility,the authors use the field intensity model to study the evolution of the city attracting scope of Nanjing Metropolitan Area under the condition of without weight and with weight. The authors select four time sections to study the city attracting scope of Nanjing Metropolitan Area. The four time sections are 1993, 1999, 2005 and 2011. Meanings of the four time sections are as follows respectively. Then on the basis of the evolution of city attracting scope of Nanjing Metropolitan Area, the authors propose the corresponding development proposals about the development of Nanjing Metropolitan Area. Results are shown as follows:①city attraction scope does not coincide with the administrative region. City attracting scope of Wuhu and Zhenjiang has reached the north shore of the Yangtze River. City attracting scope of Nanjing has increased remarkably while city attracting scope of Chaohu has reduced gradually; ②when considering without weights, city attracting scope of Wuhu and Nanjing have increased overall, but city attracting scope of Yangzhou, Zhenjiang, Chaohu, Chuzhou and Maanshan have reduced overall, while city attracting scope of Huaian remains stable; ③ when considering with weights, city attracting scope of Wuhu and Nanjing have increased, but city attracting scope of Zhenjiang, Chaohu and Huaian have reduced, while city attracting scope of Yangzhou, Chuzhou and Maanshan have reduced unsteadily.