中心城市影响腹地的动态变化研究

以驻马店市及相邻6市为研究对象，以城镇体系分析软件USAP作为分析工具，对驻马店的影响腹地进行划分和动态分析．结果表明：驻马店现在的中心城区规模明显偏小，集聚与辐射功能薄弱，现状影响腹地范围覆盖的地域面积不及其行政范围的一半．当周边城市规模不变，驻马店人口规模达到55万时，其影响腹地面积可扩大到与市域面积基本相同的程度，如考虑到其他城市的发展，只有当驻马店人口是周边6个城市的平均人口的1．5倍时，才能保证其影响腹地面积与市域面积基本一致．驻马店城市重心的移动对影响腹地消长有一定的影响，向南优于向北．区域性交通条件的改善会削弱驻马店影响腹地的范围．

Research on Changes of Central City's Hinterland

Based on the index of urban population,the hinterland and dynamic changes of Zhumadian city were studied with urban system analysis package(USAP) 1.0.It is concluded that the present size of Zhumadian city is obviously small and less attractive with the hinterland being less than half of its administrative region;with the populations of adjacent cities unchanged, the hinterland of Zhumadian city would extend to as large as its administrative range when its population reaches(550 000.)Considering the development of those surrounding cities,the hinterland of Zhumadian city would be the same size of its administrative range only when the population reaches 1.5 times of the average level of the adjacent six cities;the movement of the urban center of Zhumadian city will influence the extension of its hinterland;moving southward is expected to be better than moving northward;the improvement of regional transportation will reduce the hinterland area of Zhumadian city.