宁夏城镇体系分形结构的初步研究

利用分形理论，结合区域实际情况，分析了宁夏城镇体系规模等级结构及空间分布的特征，发现该体系中各等级规模的城镇数量比例有明显的层次性和可划分性，但整体处于内部结构均衡的初级发展阶段，未达到泛城镇化水平，城镇体系主要沿黄河两岸呈条带状分布，在北部灌区较为紧密，城镇间的物质、能源、信息交换强度较大，带动着全区经济发展的结论．提出了加快城镇体系增长极的培养，开发建设沿黄河城镇带以带动城镇体系发展，大力发展非农产业，建设农村特色小城镇的对策．

Research of the Urban System in Ningxia Based on the Fractal Theory

Based on the real circumstances of Ningxia, this paper uses the fractal theory to study the structure size and space distributing of urban system in Ningxia. The urban system can be divided into several levels, but in an early development stage of inner structure balance. The system has not reached the universal urbanization seedtime. The system distributes along the yellow river into zones, and northern Irrigation District distributes closely. The exchange of substances, energy and information are intense, driving the economy developing along the Ningxia. Three countermeasures to optimize the structure of Ningxia urban system are put foruard. Firstly, the growth pole of urban system should be cultivated expeditely; secondly, the non-agricultural industry should be developed vigorously; thirdly, and small country towns should be constructled well.