首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到19条相似文献，搜索用时 146 毫秒
1.
Urbanization is a comprehensive concept, a trinity process that population urbanization, economic urbanization and space urbanization, is based on the interactions and mutual influences among the in which, people are the central and leading players in this process, while economic activities serve as the driving force and space is the carrier-the physical or material setting as well as the product. So the coordination among these processes is crucial for a country or region＇s sustainable development. China is experiencing rapid growth of cities and a surge in urban population, with the basic national condition of many people and little land, which calls for a systematic study of the issue of coordinated urbanization from theoretical, methodological and practical perspectives. Based on the concept of urbanization and non-coordination of urbanization, this article built a quantitative method to identify and evaluate the urbanization and non-coordination of urbanization, and made an empirical analysis in China between 2000 and 2008. The results show that the non-coordination overall level of China＇s urbanization declined during the study period, because population urbanization, economic urbanization, and space urbanization exhibited different trajectories of change. This study also reveals that performance assessment system, household registration system, and urban land expropriation system, etc., are the main affecting factors. At the end, we put forward some suggestions to achieve sustainable development of China＇s urbanization from the aspects of improving the local government＇s obiective function, imolementing the urban plalming svstem, enforcing public particination asnects and so on.  相似文献   

2.
The quality dimension of the urban living space was addressed much earlier abroad; nevertheless, it has not been studied in the Chinese academia up to date, as evidenced by the limited research literature. Through recourse to Rich BOYER‘s nine-factor theory, this study attempted to evaluate and rank 31 target cities, by using the data from the China Statistical Yearbook 2002. Our research results show that the quality of a city‘s living space is in positive correlation with its size, and that there will be changing demands for the quality of the urban living space as a result of future social, economic, sci-tech, cultural and educational developments, combined with the improvement of the overall quality of urban residents. Previous research was focused on the quality of food, housing, education, transportation and entertainment. However, with the development of the knowledge-economy, such factors as information accessibility, green environment, and air quality, will be major considerations in the quality evaluation of the urban living space.  相似文献   

3.
As the Central Place Theory indicates, the centricity of a central city can influence the extension of its service. Since the service industry in the theory is mostly consumer services, it is worth studying the relationship between the producer services and the centricity of the city in the service society with producer services becoming a more important part of the service industry. The paper takes the case of the Zhujiang （Pearl） River Delta （PRD）, a developed region in China, to study the relationship between the developing level of producer services and the urban hierarchy. Based on the analysis about the spatial difference of the producer services in the nine cities of the PRD, and the division of the nine cities according to some economic indices, it is shown that there is a correlation between the developing level of producer services and the urban hierarchy. Furthermore, two deductions about the future status of the producer services in the city and the location of the producer services in a large region can be made from this correlation between the developing level of producer services and the urban hierarchy.  相似文献   

4.
This is an empirical paper that measures and interprets the position of Chinese cities in the world city network in 2010. Building on a specification of the world city network as a′interlocking network′in which business services firms play the crucial role in city network formation, information is gathered about the presence of global service firms in cities. This information is converted into data to provide the′service value′of a city for a firm′s provision of corporate services in a 526(cities)×175(firms) matrix. These data are then used as the input to the interlocking network model in order to measure cities′connectivity and its predominant geographical orientation. Here we focus on the position of some key Chinese cities in this regard, and discuss and interpret results in the context of the urban dimensions of the′opening up′of the Chinese economy.  相似文献   

5.
In metropolitan regions, the change in the strength of＂flows＂ between a core city and surrounding cities reflects the range of the core city＇s influence, while the gravity between core city and other cities reflects the strength of potential relation between them. This article firstly attempts to delimit the boundary of metropolitan regions with the two dimensions measure combining ＂flows＂ and gravitation. The former is measured through the flow of people between the core city and surrounding cities, and the latter is measured through both population and gross domestic products （GDP） of the core city and surrounding cities. The hierarchy of the cities within a metropolitan region is classified in order to emphasize the roles of the cities belonging to the metropolitan regions, different from the general way through population scale and administrative level, and is typical in China. This paper uses the Shanghai metropolitan region as a research case, determining boundary of this metropolitan region clearly and classifying hierarchy of the cities within the region. The final results are significantly different to previous work, even overthrowing the traditional system of urban hierarchy partly. It is helpful to highlight the function of cities in organizing the regional economy, the level structure of metropolitan regions, and each city＇s relative importance in a metropolitan region, which can be taken as scientific basis for planning integrated regions or urban systems.  相似文献   

6.
Lanzhou Valley Basin is composed of two smaller diamond-shaped basins striking from NW to SE and including 6 river terraces. The lower terraces remaining even and smooth are main sites for city buildings. The main function of Lanzhou urban settlement is a ferry and transport centre. Lanzhou used to be an im-portant crossing site and post on the "silk road",and then became a transport and trade centre in Northwest China. In the middle part of the 17th century, Lanzhou became the capital of Gansu,a new province. The development process of Lanzhou urban settlement indicates that urban settlement is a system consisting of natural environment and human society based on the former.  相似文献   

7.
Smart urban development is an inevitable choice, and is essential to overall strength improvement. It is important to explore an urban smart development path which unites smart growth with driving shrinkage perfectly in forming scientific and sustainable development concept and responding to new normal strategic opportunities. Based on statistic data of 294 prefecture-level cities and above in China from 2000 to 2015, we analyzed spatial and temporal evolution of urban smart development in China by constructing a dynamic fitting model of urban land expansion, population growth, and economic development as well as the coefficient of variation of urban smart development(CVSD). Further efforts were then made to consider differential distribution regularity of urban smart development so as to understand the driving mechanisms of heterogeneous classification of urban smart development in China from different scales and scale variation. Our results indicate that: 1) the disordered growth tendency of urban cities in China is overall well controlled in the middle, and late research and it mainly presented a doublet coexistence of shrinkage disordered cities and smart developing cities. It is particularly obvious that Northeast China and East China have regarded shrinkage disordered cities and smart developing cities as main development tendency separately. 2) Areas with basic stability and relative variation were relatively dispersed across the time period, but the proportion was far beyond areas with significant variation. It demonstrates a relative equilibrium spatial and temporal differential evolution pattern of prefecture-level cities and above in China, except for Tongling, Lanzhou and Chaoyang. 3) prefecture-level cities and above in China are mostly characterized by shrinkage disordered and smart development classification under the background of different scale and scale variation from 2000–2015; however, the spatial resonance relation is not obvious. 4) There are many interaction factors forming an important driving mechanism in developing the spatial and temporal pattern of urban smart development in China, including natural geographical factors, industrial structure adjustment, human capital radiation, regional traffic accessibility, and government decision-making intervention.  相似文献   

8.
The connectedness between cities has become one of the most widely discussed topics in urban and regional research in the mobile and big data era. One problem identified is the asymmetric city connectivity, partially due to data availability. We present a data-driven approach based on location and toponym(place name) extracted from social media data, to assess the asymmetric connectivity between cities. The assumption is that a higher frequency of occurrences of the name of city i in posts located in city j would imply that the city i is more influential than other cities upon city j. In addition, we’ve developed a group of measurements such as the relatedness index, impact index, link strength index, dependence index, and structure similar index to characterize such interactions. This framework of connectivity measurements can also be used to support smart planning taking into account the evolving interplay among cities. The space-time structure of urban systems in China is examined as the case study.  相似文献   

9.
By focusing on Guangzhou, this paper examines how different concepts of city in terms of urban-rural relationships are shaped in transforming China since 1949, and explores how they influence the way in which urban planning are practiced. In the pre-reform era, the city was defined as a productive space under the system of urban-rural segregation established for securing rapid industrialization. Urban planning was thus only concerned with the development of urban areas. In the 1980s and 1990s after the reform, institutional change and economic transformation mobilized the urban-rural linkages. The development of suburban areas was then con- sidered by urban planning, but this consideration was a passive response to urban problems such as population explosion and water re- sources protection. Since the new millennium, the agenda for sustainable development and problems of uneven urban-rural development have called for the development of urban-rural integration. In this context, the city is conceptualized as a complex of mountain, city, river, farmland and sea, reconstructing the ideology of urban-rural division in defining urban development. Urban planning has therefore sought in an active way to develop a sustainable city embracing rural and natural elements, and to balance economic growth and envi- ronmental protection. It is argued that developing the concept of city as a complex of urban and rural elements contributes to the urban planning for sustainable urban development, while this conceptualization relies on the recognition of the integrated urban-rural relationship.  相似文献   

10.
Many studies have been made concerning the problems, characteristics, formation, transformation measures, etc. of urban village from sociology, urban planning and geography, etc., which have made insightful analysis. However, most of these studies started mainly from the standpoint of the city govemment, drumming for the land- scape-oriented urbanization, namely pulling-down the urban village and constructing the splendid residence or business buildings. The article maintains that the most important thing the city government should do is to pay much attention to the sustainable living of urban villagers, who would lose their main income source, namely, the collective dividend and the family housing rent. The single method of compensation has been proved to be harmful to the villagers＇ community, in which some young villagers relying on rent were no longer to do anything but stay at home. On the other hand, considering the floating population has become the main stream of renters in urban villages, the emergence of urban villages was inevitable and would continue to exist in a long time under the socio-economic transition in urban China and globalization. Based on the analysis above, the transformation of urban village should take more concerns on the housing demands of floating population besides compensation for local villagers. Meanwhile, it is necessary to avoid the “landscape-oriented urbanization” without the “peasant-to-citizen” transformation.  相似文献   

11.
In this paper, we use factor analysis to evaluate the urban comprehensive quality of each city in the Lanzhou-Xining(Lan-Xi) urban agglomeration. The time distance was obtained by using GIS spatial analysis, and the structure and pattern of the spatial network were analyzed by using the gravity model and social network analysis method. The results show that: 1) The scale effect of the Lan-Xi urban agglomeration is gradually emerging, and it is gradually forming the urban agglomeration with Lanzhou and Xining as the core, the Lan-Xi high-speed railway as the axis, and a high-dense connection. 2) Lanzhou and Xining are at the core of the Lan-Xi urban agglomeration, which has a strong attraction and spreads to neighboring cities. 3) In the network structure of the Lan-Xi urban agglomeration, Lanzhou, Baiyin, Gaolan, Yuzhong, Yongdeng, Dingxi, Lintao, Xining, Ledu, Huangzhong, Ping'an, Minhe and Datong are located in the network core position, which have the superiority position and lead to the entire regional communication enhancement and the regional integration development. 4) This urban agglomeration has significant subgroups, eight tertiary subgroups and four secondary subgroup; the tertiary subgroups which compose secondary subgroup have a close connection and mutually influence each other. 5) The Lanzhou Metropolitan Area and the Xining Metropolitan Area have an important impact on the surrounding cities, and the peripheral cities are basically controlled by the central city. The Dingxi subgroup, Lintao-Linxia subgroup, Gonghe subgroup have more structural holes than the subgroups within the Lanzhou Metropolitan Area and the Xining Metropolitan Area, so the peripheral cities of these subgroups have relatively less connection with surrounding cities.  相似文献   

12.
以南京市“一主三副”住宅小区为研究单元,运用GIS中的渔网（Fishnet）分析和探索性空间数据分析（ESDA）对“一主三副”住宅租金的空间分布进行模拟和估计,并利用地理探测器模型从住宅小区的区位特征、建筑特征和邻里特征3个方面探究住宅租金空间分异的影响机制。结果表明：① 南京市住宅租金总体呈上升趋势,空间上表现出主城向副城递减的中心外围模式,住宅租金空间结构逐渐由单核向双核发展,且住宅租金存在显著的空间异质性;② 住宅租金呈现出明显的空间正相关性和区域集聚性,热点区自内城核心区至副城趋于弱化,冷热点空间格局呈圈层结构;③ 交通位势和中心位势是对一主三副住宅租金解释力最大的因素,商务配套、金融设施和住宅房龄的解释力次之,特征因素对主城副城租金的影响强度各异。  相似文献   

13.
城市潜能作为城市体系空间相互作用的代表性指标,反映了城市与其所在的城市体系内所有城市间相互作用的强度,即城市所具备的的集聚能力。合理分析城市空间布局及结构、探寻城市发展的空间差异,以及制定区域发展政策日益迫切,研究城市空间相互作用具有重要意义。本文以Globcover数据集提取中国大陆范围内26 619个城市斑块,获取了城市潜能计算时所需的城市斑块规模总量;同时,以DMSP/OLS夜间灯光影像为数据,提取能综合反映人类社会经济活动的城市斑块夜间灯光总强度,参与城市潜能的计算。利用潜能模型,依据城市斑块分层结果,以城市斑块规模和时间成本为参数,计算得到公里格网的城市潜能值模拟分布图,并分析了中国大陆城市潜能的空间分异特征。  相似文献   

14.
山城眺望空间OSCA模型构建及应用   总被引：2，自引：0，他引：2  
山体是大自然赋予城市的天然景观资源,通过山与城市中建筑群构成的山城空间关系,可形成多类型的眺望景观。当前山城眺望景观在建设热潮中不断被破坏,逐渐消失在林立的高楼中,需要进行一定的控制和保护。以济南市中心城区为例,基于眺望控制分区,寻找城市建筑发展演变、分区建设的规律,结合元胞自动机与多智能体,提出基于眺望景观控制下的山城眺望空间CA-OSCA模型（Overlooking Space Cellular Automata）,构建山城眺望空间演变模型。利用GIS等数据分析平台,对模拟结果进行分析,构建真实城市空间下的未来山城眺望空间景观三维模型,以更加直观、真实地方法探讨在眺望景观分区控制的影响下,未来城市空间结构的发展模式,最终为未来山城眺望景观空间的控制与保护以及眺望景观保护下,山城城市未来空间发展结构提出发展策略。  相似文献   

15.
城市空间结构是城市规划和发展的基础研究内容之一,特别是以城市群综合发展的区域经济体成为当前城市发展的主要形态,以首都北京为核心的首都圈则是其中具有代表性的城市群,许多学者将该区域作为城市格局研究的首选对象。本文针对首都圈“京津塘、京唐秦、京保石”三条发展轴线内的主要城市,从区域内城镇体系空间结构、道路基础设施空间布局、...  相似文献   

16.
城市影响腹地范围的划分,在区域与城市规划中有着重要的理论和实际意义。本文从"城市结节性"和"空间交通可达性"两方面改进场强模型,采用主成分分析法与指标体系计算河南省城市结节性指数,利用累积耗费距离测算空间可达性,借助k阶数据场模型与水文分析模型,综合测度了1991年和2010年河南省17个地级城市的影响腹地范围及空间演变特征。研究表明,20年间河南省地级城市的平均可达本文时间从1991年的45.41 min缩短为2010年的33.03 min,空间场能显著增长且空间分异性显著。南阳的腹地面积增加最大,信阳的腹地面积缩小最大;安阳腹地面积增加率和漯河腹地面积减少率最大。郑州的腹地范围与其行政辖区偏移度最大。  相似文献   

17.
Lanzhou Valley Basin is composed of two smaller diamond-shaped basins striking from NW to SE and including 6 river terraces. The lower terraces remaining even and smooth are main sites for city buildings. The main function of Lanzhou urban settlement is a ferry and transport centre. Lanzhou used to be an important crossing site and post on the “silk road”, and then became a transport and trade centre in Northwest China. In the middle part of the 17th century, Lanzhou became the capital of Gansu, a new province. The development process of Lanzhou urban settlement indicates that urban settlement is a system consisting of natural environment and human society based on the former.  相似文献   

18.
生态空间控制是城市总体规划的重要内容,也是构建生态城市的必然要求;数字城市规划以空间信息技术应用与空间定量分析为突出特征,探讨生态敏感信息图谱构建的信息技术方法是数字城市总体规划需要开展研究的领域.以A市城市总体规划为例,探讨基于GIS空间分析技术的生态敏感信息图谱构建方法,包括基础数据处理、生态因子确定、评价方法选择、生态敏感性评价、信息图谱构建等几个方面.实践结果表明基于GIS的城市总体规划生态敏感信息图谱构建的技术方法是可行的,可以为数字城市总体规划方案的编制提供科学依据.  相似文献   

19.
中心城市腹地合理地划分对区域的资源整合、协调发展起到关键性的作用。本文立足于加权Voronoi图,将城市的中心性强度及综合交通可达性作为权重引入断裂点模型中,修正了断裂点模型中的城市人口规模,构建了加权Voronoi图城市腹地界定新模型;并以成渝经济圈36个中心城市为例,对模型进行验证。研究表明,成渝经济圈各中心城市腹地与行政区范围吻合度较差。根据腹地与行政区范围大小的比值将城市划分为3类:比值大于100%的城市具有良好的适合腹地向外扩展的条件,对周边城市的发展有较大影响;比值在60%~100%之间的城市对周边城市的发展起到一定作用;比值小于60%的城市则说明周边城市的影响力远远大于本市。而四川省的成都市和重庆市的主城作为区域实力最强的城市,其腹地范围并不是最大的,这表明城市腹地的范围及大小主要由中心城市的综合实力和周边城市的综合实力共同决定。这是对成渝经济圈各城市腹地的重新界定,对成渝经济圈城市规划有一定参考意义。  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号