西安市城市化水平与建设占用耕地资源的时空格局演变研究

发布时间：2018-06-11 20:56

本文选题：城市化水平 + 耕地面积　；参考：《西北大学》2015年硕士论文

【摘要】：城市化是社会和经济发展的重要组成部分,也是现代化和工业化发展的必然趋势,伴随着我国城市化的快速发展,人类对于土地资源的需求也日益增长,导致大量的耕地面积被建设用地所占用。当今社会越来越重视可持续发展,我们在迫切发展的同时也必须考虑到长远的发展。所以,城市化的发展与建设占用耕地资源之间的关系已经成为了人们研究的重点和热点,解决城市化发展与耕地资源减少之间的矛盾日益迫切。本文数据来源于陕西省和西安市统计部门1994-2012年的统计资料,首先利用SPSS软件分析西安市城市化水平、城市建设用地和耕地面积之间的相关性,建立协调度模型分析西安市城市化水平和耕地面积之间是否在协调发展,其次利用灰色系统理论模型分析西安市城市化进程中造成耕地面积减少的主要因子及其与耕地面积的具体的关联度,并找出核心驱动因子,最后利用2003年和2013年这两年的土地利用图分析西安市主城区城市用地的重心转移、各种土地类型的面积及其不同类型土地的转移面积,总结出以下结论：(1)西安市的城市化率在1994-2012年间不断上升,城市化率与城市建设用地呈显著正相关,与耕地面积呈现负相关的关系。在西安市这十几年城市化过程中,城市化率与耕地资源的协调度为基本和勉强协调,耕地面积处在基本和勉强承载范围内。(2)在1994-2012年之间,西安市城市建设用地的利用程度处于中度利用,处于基本集约利用土地的状态。(3)西安市城市化进程中的自然社会经济等因素都与耕地面积的变化有很高的关联度,其中,第二产业值和城市建设用地的变化是导致耕地面积变化的核心驱动因子。(4)通过研究2003-2013年之间西安市主城区的耕地面积的变化,得出西安市主城区建设用地投入的增加是耕地面积减少的主要原因,尤其是主城区的边缘有大量的耕地面积流向建设用地。西安市主城区的城市用地由中心向四周扩展,并且由于沣东新城、沪灞生态园区的和其它城市设施的建设,城市用地的重心在向西北方向发展。由上述分析可以看出在西安市城市化进程中,西安市土地利用和耕地保护中存在着很多问题,如西安市建设用地与耕地资源供需矛盾突出、土地集约利用程度不高、产业结构优化程度不高等问题,所以我们要提出相应的措施,比如严格控制城市人口增长,加强土地的规划和管理,促进产业结构的调整、构建合理的城市体系和城市布局,使城市用地与耕地面积相协调发展。
[Abstract]:Urbanization is not only an important part of social and economic development, but also an inevitable trend of modernization and industrialization. With the rapid development of urbanization in China, human demand for land resources is also increasing day by day. As a result, a large amount of cultivated land is occupied by construction land. Nowadays, the society pays more and more attention to sustainable development. We must consider the long-term development while developing urgently. Therefore, the relationship between the development of urbanization and the construction and occupation of cultivated land resources has become the focus and hotspot of people's research, and it is increasingly urgent to solve the contradiction between urbanization development and the reduction of cultivated land resources. The data are from the statistics department of Shaanxi province and Xi'an city from 1994 to 2012. Firstly, using SPSS software to analyze the correlation between urbanization level, urban construction land and cultivated land area in Xi'an city. Establish the coordination degree model to analyze whether the urbanization level and cultivated land area are developing harmoniously in Xi'an. Secondly, the grey system theory model is used to analyze the main factors that cause the decrease of cultivated land area in Xi'an city, and the specific correlation degree between it and cultivated land area, and find out the core driving factor. Finally, using the land use maps of 2003 and 2013 to analyze the center of gravity of the urban land in Xi'an, the area of various land types and the transfer area of different types of land. The following conclusions are drawn: (1) the urbanization rate of Xi'an has been increasing from 1994 to 2012. The urbanization rate is positively correlated with urban construction land and negatively correlated with cultivated land area. In the urbanization process of Xi'an in the past ten years, the degree of coordination between urbanization rate and cultivated land resources is basic and barely coordinated, and the cultivated land area is within the basic and barely bearing range. The degree of utilization of urban construction land in Xi'an is in moderate utilization, and in the state of basic intensive use of land.) the natural, social and economic factors in the urbanization process of Xi'an have a high correlation with the change of cultivated land area, among which, The value of secondary industry and the change of urban construction land are the core driving factors leading to the change of cultivated land area. It is concluded that the increase of construction land input in Xi'an is the main reason for the decrease of cultivated land area, especially a large amount of cultivated land flow to construction land on the edge of main urban area. Due to the construction of Fengdong New Town, Huba Ecological Park and other urban facilities, the center of gravity of urban land is developing northwestward. From the above analysis, we can see that in the process of urbanization in Xi'an, there are many problems in land use and cultivated land protection in Xi'an, such as the contradiction between supply and demand of construction land and cultivated land resources in Xi'an is prominent, and the degree of intensive land use is not high. Since the degree of industrial structure optimization is not high, we should put forward corresponding measures, such as strictly controlling urban population growth, strengthening the planning and management of land, promoting the adjustment of industrial structure, and constructing a reasonable urban system and urban layout. Make urban land and cultivated land area harmonious development.
【学位授予单位】：西北大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：F299.27;F323.211

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