酒泉—嘉峪关城镇群空间成长规模统计分析及空间结构特征研究

发布时间：2018-10-23 17:57

【摘要】：城镇群是城镇化过程中出现的一种地域空间组织形式，是城镇集聚与扩散的一种高级现象，已经成为发达国家和地区城镇化的重要趋势之一。20世纪80年代以来，随着西部大开发战略的实施，西部省份的经济得到快速增长，同时城市也进入快速增长阶段。酒泉-嘉峪关地区在古代是中原王朝的西大门，河西走廊的西段口，在现代是连接甘肃与新疆、青海、内蒙古等地的枢纽，具有重要的地理区位优势和发展经济优势。完善酒泉-嘉峪关城镇群结构，将更好地发挥城镇群整体经济优势，提升城镇群的竞争力，促进区域经济的可持续发展。笔者在阅读大量相关文献、资料之后分析了城镇群的概念以及其国内外相关研究进展，从现实和理论两个角度阐述了论文的选题背景和研究意义，在介绍本文的主要方法之后引出了技术路线。在国情基础之上结合甘肃省的实际情况，界定了酒泉—嘉峪关城镇群的范围，并从自然条件、人文环境、社会和经济发展状况等对研究区域的概况进行描述，以此作为文章研究的基础，展开空间成长规模统计分析，进而进行空间结构特征进行研究。本文在进行空间成长规模分析时首先利用遥感技术对研究区域的遥感影像进行解读，提取城镇用地数据，并结合GIS技术分析区域的城市扩展变化，然后利用区域内的相关人口数据，通过地统计分析法研究区域内的城镇化分布以及人口空间分布。研究发现近20年来酒-嘉城镇群地区以片状蔓延式从中心城镇向四周扩展；研究区域内的城镇化水平分布具有明显的主轴特点，以铁路和312国道为主线的周边城镇近10年来城镇化水平较高，，发展迅速，且发展具有明显的产业指向性。在此研究成果基础之上，结合分形理论，利用关联维数模型测算出城镇群空间分维数，发现研究区域在空间分布上比较集中，虽然个别城镇之间通达系数较低，但就整个区域而言具有较高的集聚性。
[Abstract]:Urban cluster is a form of regional spatial organization in the process of urbanization, a high-level phenomenon of urban agglomeration and diffusion, and has become one of the important trends of urbanization in developed countries and regions since 1980s. With the implementation of the strategy of developing the western region, the economy of the western provinces has been growing rapidly, and the cities have also entered the stage of rapid growth. Jiuquan-Jiayuguan area is the west gate of the Central Plains Dynasty in ancient times and the west entrance of the Hexi Corridor. In modern times, it is the hub connecting Gansu with Xinjiang, Qinghai, Inner Mongolia and so on. It has important geographical location advantage and economic development advantage. Perfecting the structure of Jiuquan-Jiayuguan town group will bring into play the whole economic advantage of the town group, promote the competitiveness of the town group, and promote the sustainable development of the regional economy. After reading a large number of relevant documents and materials, the author analyzes the concept of urban group and its related research progress at home and abroad, and expounds the background and significance of the thesis from the perspective of reality and theory. After introducing the main methods of this paper, the technical route is introduced. Based on the actual situation of Gansu Province, this paper defines the scope of Jiuquan-Jiayuguan Town Group, and describes the general situation of the study area from the aspects of natural conditions, humanistic environment, social and economic development, etc. On the basis of this research, the spatial growth scale is analyzed statistically and the spatial structure characteristics are studied. In this paper, we first use remote sensing technology to interpret the remote sensing image of the study area, extract the urban land data, and analyze the urban expansion changes with GIS technology. Then the distribution of urbanization and population spatial distribution in the region are studied by using the relevant population data of the region and the geostatistical analysis method. It is found that in the past 20 years, the Jiu-Jia Town Group has spread from the central town to the surrounding area in a patchy manner, and the urbanization level distribution in the study area has obvious characteristics of the main axis. The surrounding towns with railway and 312 national highway as the main line in the past 10 years, the urbanization level is relatively high, the development is rapid, and the development has obvious industrial orientation. Based on the research results and fractal theory, the fractal dimension of urban groups is calculated by using the correlation dimension model. It is found that the spatial distribution of the study area is relatively concentrated, although the coefficient of access between individual towns is relatively low. However, the whole region has a high agglomeration.
【学位授予单位】：西北师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：F299.2;TU984.113

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