中文摘要：

以长春主城区6类共2 418个服务设施网点为基础数据,采用ArcGIS 10.1软件,引用核密度分析、标准差椭圆、圈层分析法等空间计量方法,基于服务设施布局视角讨论了主城区的城市形态与空间结构。结果表明：服务设施网点所折射的城市用地结构以“单中心”集聚为主,同时外围也出现了扩散的再集聚,分层级呈现出“轴向式”与“跳跃式”并存的扩散格局,整体上形成了4级集聚中心;服务设施网点分布与建设用地整体上存在“偏差”,其集聚程度显著高于城市建设用地,“西南—东北”两翼的服务设施网点配套明显不足;服务设施高密度区主要集中于“三环”以内,与建设用地的扩展相比表现出明显的“滞后性”,城市外围因服务设施配套不足导致的城市功能缺失问题普遍存在。

英文摘要：

This paper adopts the service facilities layout perspective to discusses the urban space structure in main districts of Changchun, which is based on the data of 6 classes, a total of 2418 services networks in main districts of Changchun. We have used ArcGIS software platform to cite the Kernel Density, Standard Deviation Ellipse and Layer Analysis spatial econometric model. The result shows that： The urban land use structure reflected by the service facilities network is given priority to with ＂single center＂ agglomeration, The city＇s periphery has appeared the phenomenon of diffusion and re agglomeration. The urban land use structure reflection shows a ＂Axial type＂ and ＂Saltatory type＂ diffusion trend, and on the whole has formed four levels of services cluster center; And the layout of the service networks exists deviation with construction land, and the service networks have the higher feature in concentration than those construction land. At the same time, the distribution of service facilities is obviously insufficient in Southwest and northeast direction. Service facilities＇ high density areas are mainly gathered within ＂three-circle＂. Compared with the expansion of the construction land, the service facilities have showed obviously lag. Lack of those service facilities in the Periphery of main districts has caused the problems of the lack of urban function.