基于产业用地拓展的山地资源型城市空间形态演变特征——以攀枝花市为例

SPATIAL MORPHOLOGY EVOLUTION OF MOUNTAIN-RESOURCES CITIES BASED ON INDUSTRIAL LAND USE EXPANSION: A CASE STUDY ON PANZHIHUA CITY

把攀枝花市作为山地资源型城市的典型研究对象,选取1986—2016年城市用地与社会经济的面板数据,基于ArcGIS空间分析和SPSS统计分析,利用拓展指数、形状指数、集成度、空间效率等指标,对攀枝花市全面建设期和协调发展期的产业空间拓展和城市空间形态演化过程进行分析,明确攀枝花城市空间形态演变的时序特征,探究产业空间拓展与城市空间形态的内在关联机制,以期为攀枝花的城市转型发展提供理论支撑。研究表明,攀枝花的产业扩展和城市形态演变呈现出相同的阶段性特征,产业结构调整是城市空间演变的直接动力,产业空间拓展引导城市空间结构从单中心到多中心组团式演变,产业的集群式发展提高了城市空间结构的集约水平。未来攀枝花可通过优化产业承载空间,形成紧凑集约型和山水生态型的城市空间发展模式;通过产业的集群式发展,提高城市的集聚能力和空间效率;通过产业结构调整,引导城市形成多中心、网络化的空间格局。

Panzhihua city is a typical mountain resources city. This paper selects its panel data of urban land use and social-economy from 1986 to 2016 and uses expansion index, shape index, integration, spatial efficiency based on ArcGIS and SPSS to study the evolution process of industrial spatial expansion and urban spatial morphology during Panzhihua’s overall constructing period and coordinated developing period, clarifies its temporal features and explores the correlation mechanism between industrial spatial expansion and urban spatial morphology, offering theoretical supports for Panzhihua’s urban transformation. Panzhihua’s industrial expansion and urban morphology show the similar developing stages. Industrial structural adjustment directly drives urban spatial evolution, and industrial spatial expansion leads to evolution in urban spatial structure from sole center to multiple centers. Industrial clustering development increases the intensive use of urban spatial structure. This paper presents suggestions for Panzhihua on optimizing industrial carrying space to form intensive and mountain-water ecological urban space use mode, boosting industrial cluster to increase urban concentrating capacity and spatial efficiency, adjusting industrial structure to help form the urban spatial framework of multi-centers and network.