西北干旱区绿洲型城市空间演变及其动因分析——以库尔勒为例

库尔勒作为西北干旱区典型的绿洲型城市其城市形态呈现出阶段性发展,表现为点状积聚、飞地扩散、填充拓展、郊区新城的空间特征,并形成了适应孔雀河水系发展的组团格局。本文运用城市形态学、空间紧凑度、分形维数等分析方法对其空间格局及形态进行了梳理分析。结论表明其发展受其绿洲自然条件及资源禀赋、区位优势及交通结构、经济及社会发展和政策引导及项目驱动的影响,其中自然因素是库尔勒城市发展之本,区位优势及交通结构是决定性因素;资源条件、区位优势、产业发展等是库尔勒城市发展的内在动力;政策推动以及城市建设等因素则起到了重要的催化作用。这就要求城市发展必须整合现有优势和资源走生态可持续发展之路。

Research of the Evolution of the Typical City Space in the Oasis of Arid Areas of Northwest China:Korla

The developing process of space form of Korla can be divided into 4 stages match to its basis conditions,which is the typical oasis city in the arid areas of northwest China.The research shows the characteristic of the 4 stages including the punctate accumulation,enclave diffusion,filling expansion and the outskirts of town,which fits the system of Kongque He river,by which the means of the methods of analysis of city morphology,spatial compactness and the fractal dimension.Yet the dynamic factors of the development is including the nature resources,the location advantage,policy guidance and the project driven,etc.The fractor of the project driven plays a lead role of them.But the nature resources is the basis key role in the processing of the Korla ’s space development.It needs the ecological sustainable means which can be made into a sort of integration of the advantages and the resources.