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1.
1 ＩＮＴＲＯＤＵＣＴＩＯＮＣｉｔｙｐｌａｙｓａｎｉｍｐｏｒｔａｎｔｒｏｌｅｉｎｔｈｅｐｒｏｃｅｓｓｏｆｒｅ ｇｉｏｎａｌｅｃｏｎｏｍｉｃｄｅｖｅｌｏｐｍｅｎｔ .Ｆｏｒｉｎｓｔａｎｃｅ ,ｉｎ 1996,ｔｈｅｔｏｔａｌｍｕｎｉｃｉｐａｌａｒｅａｓｏｆ 666ｃｉｔｉｅｓｏｎｌｙｃｏｖｅｒｅｄｔｈｅｐｒｏｐｏｒｔｉｏｎｏｆ 18.12ｐｅｒｃｅｎｔｉｎｎａｔｉｏｎａｌｔｅｒｒｉｔｏｒｙ ,ａｎｄｂｕｉｌｔ ｕｐａｒｅａ 1.8ｐｅｒｃｅｎｔ .Ｂｕｔｔｈｅｙｐｒｏｄｕｃｅｄｔｈｅ 68.63ｐｅｒｃｅｎｔｏｆＧＤＰ(ＧｒｏｓｓＤｏ… 相似文献
2.
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
3.
城市空间格局变化监测能够反映城市建设空间的发展规律和特点，为城镇体系发展规划、优化以及城市空间开发集约利用等提供重要基础。该文选取山东省作为研究区域，以全省17个地级以上城市城区为研究对象和统计分析单元，以2000—2017年7个时期高分辨率正射影像提取其城区边界和部分时期内部结构数据，采用城市扩展面积、城市扩展速度、城市扩展强度及紧凑度等指标，对山东省17个地级市城市空间格局发展变化进行综合分析，对城市扩展、城市用地等进行评价。研究结果表明：山东省地级以上城市空间格局演变整体呈现出以济南青岛为中心的东西两极发展格局，整体发展较为均衡，但东西部差距依然较大。城市紧凑度较低，以粗放型土地增长模式扩展，面积扩张过快，占用耕地比例较高，土地集约利用程度不够。研究成果可为优化城市空间结构，促进城镇高效、集约、节约、绿色发展等提供了合理的建议以及技术支撑。 相似文献
4.
探究城镇空间扩张的方向性及其时间变化特征,能够反映都市圈发展过程中核心城市与边缘地区空间关联的动态过程,为制定都市圈发展的相关政策提供科学依据。本文从都市圈的核心城市与边缘地区相互关联的视角,借鉴物理学中力的分解原理,构建了同时兼顾扩张强度和方向性的向心扩张指数CEI,并以郑州都市圈为对象,采用2000—2018年30 m分辨率的全球人造不透水面数据产品GAIA,分析了建设用地扩张的总体数量和占比变化、动态度及强度变化、以及空间方向性变化等特征,进一步应用多元逻辑回归模型,揭示了影响城镇空间扩张向心性的关键因素。结果表明：① 向心扩张指数CEI为揭示都市圈核心城市对边缘地区的辐射带动作用提供方法支撑,能够定量刻画边缘地区朝向核心城市的发展趋势;② 在郑州都市圈近20年的快速扩张过程中,尽管各区县市的DEI指数和CEI指数随时间而增减波动,但郑州都市圈总体呈现“核心—边缘”发展模式,除个别地级市中心城区及其下辖县以外,多数区县市的向心性显著且随时间增强,郑州市中心城区对于边缘地区具有显著的辐射带动作用;③ 核心城市与边缘地区的人均GDP差异及城镇化率差异是影响边缘地区向心扩张的重要因素,与核心城市是否相邻、行政隶属关系及行政等级也对向心扩张具有一定影响。 相似文献
5.
《中国地理科学(英文版)》2019,(2)
In recent years, the large scale and frequency of severe air pollution in China has become an important consideration in the construction of livable cities and the physical and mental health of urban residents. Based on the 2016-year urban air quality index(AQI) data published by the Ministry of Environmental Protection of China, this study analyzed the spatial and temporal characteristics of air quality and its influencing factors in 338 urban units nationwide. The analysis provides an effective scientific basis for formulating national air pollution control measures. Four key results are shown. 1) Generally, air quality in the 338 cities is poor, and the average annual values for urban AQI and air pollution in 2016 were 79.58% and 21.22%, respectively. 2) The air quality index presents seasonal changes, with winter spring autumn summer and a u-shaped trend. 3) The spatial distribution of the urban air quality index shows clear north-south characteristic differences and a spatial agglomeration effect; the high value area of air pollution is mainly concentrated in the North China Plain and Xinjiang Uygur Autonomous Region. 4) An evaluation of the spatial econometric model shows that differences in urban air quality are due to social, economic, and natural factors. 相似文献
6.
With rapid development of urbanization and regional interaction and interdependence, regional urban agglomeration planning
becomes more and more important in China, in order to promote integrated development of various cities with close interrelationship.
However, it is still arguable academically on how to define the boundary or which cities to be included for the urban agglomeration
of a region. This paper aims to shed lights on how to identify urban spheres of influence scientifically by introducing field
modeling method and by practicing a case study on 168 cities in Central China. In our field modeling method, the influence
intensities of cities were measured by a comprehensive index and urban spheres of influence were represented spatially by
field intensity. Then, their classification and spatial distribution characteristics of study area in 2007 were identified
and explored by using GIS and statistical methods. The result showed that: 1) Wuhan is the absolute dominant city in Central
China; 2) the provincial capital cities dominate their own provinces and there are no other lower grade agglomeration centers;
and 3) the basic types of organization form of urban sphere of influence are single-polar type, agglomeration type, close-related
group type and loose-related group type. 相似文献
7.
Space-time relationship between urban municipal district adjustment and built-up area expansion in China 总被引：1，自引：1，他引：0
Municipal district adjustment and built-up area expansion are two main forms of urban spatial expansion. Using geometric methods, this study constructed a space-time path method to characterize the space-time relationship between municipal district adjustment and built-up area expansion, and drew the space-time path sets of major prefecture level cities from 2000 to 2010 by constructing a coordinate system of the standardized built-up areas and municipal district areas. This divided them into four quadrants, namely, H-H, L-H, L-L, and H-L, based on the relative mean value to evaluate overall and individual stability by three indexes of the trajectory vectors, namely, direction, length, and slope. Results provide the following conclusions. 1) Municipal district adjustment is an effective spatial expansion way for city-scale promotion in China. Since 2000, municipal district adjustments have been mainly distributed in the eastern coastal regions and mid-western capital cities along with their surrounding cities. 2) Municipal district adjustment affects the scale and status of a city in China. Many cities that have expanded municipal districts behave stably and cross quadrants. 3) Great majority second-tier cities have effectively promoted their scale and status through municipal district adjustment. The municipal district adjustment of medium and small cities in the mid-west area is relatively advanced compared with city development. 4) Municipal district adjustment with minimal magnitude is severely restricted from upgrading the scale and status of a city. The transformation from entirely incorporated counties or cities to municipal districts should be the mainstream in future municipal district adjustment. 相似文献
8.
9.
《中国地理科学(英文版)》2020,(2)
The emergence of rapid transit, primarily represented by high-speed railway(HSR), while reshaping the regional traffic patterns, leads to the reconstruction and redistribution of population and industry. This leads to either shrinkage or expansion of urban scale. However, research on the influence mechanisms of the urban scale has mostly concentrated on historical, economic and social factors. The influence of traffic factors is rarely mentioned in current research. Therefore, this study examines Northeast China, where the change in urban scale is most significant, to discuss the spatial impact of high-speed railway on the urban scale. This is of great significance in terms of enriching current understanding of the factors affecting the urban scale. The results included the following: 1) The high-speed railway produced considerable space-time convergence effects, however, simultaneously aggravated the imbalance in traffic development in Northeast China. The increase in accessibility presents attenuation characteristics from the high-speed railway. Additionally, the high-speed railway has changed the mode of cooperation between cities in the provinces, inter-regional and inter-provincial cooperation models gradually become popular. 2) The change rate of accessibility and the urban scale present significant spatial coupling phenomena, with the change rate of the Harbin-Dalian trunk lines and its surroundings being more significant. 3) There are predominantly four modes of the influence of high-speed railway on the urban scale, which make difference city present expansion or shrinkage. 相似文献
10.
This article presents the findings of a study of the spheres of urban influence with regard to all cities in China（not including Hong Kong,Macau and Taiwan Province of China）in the years 1990,2000 and 2009.An optimized gravity model with comprehensive time distance was used to carry out a detailed analysis of the spatial patterns of Chinese spheres of urban influence and the spatial characteristics of urban agglomerations.Such urban agglomerations are characterized by high density population and a developed economy,which are also considered as the national competition unit.This paper initially identifies four spatial patterns of urban agglomerations based on the spatial layout of city groups during their evolution.Some basic characteristics of urban agglomerations are outlined,including the number of cities,the size of cities and the functions of urban centers.These characteristics are examined by using statistical methods and Geographic Information System（GIS）.The main findings from this research are that the development stages and structures of urban agglomerations in China vary significantly.It is also clear that the stages and evolution of spatial patterns are strongly affected and dominated by both policy and location factors. 相似文献
11.
城市形态信息图谱的理论框架与案例分析 总被引：4，自引：0，他引：4
本文主要对城市形态信息图谱的理论框架构建进行研究,并通过具体案例实践进行理论框架解析.首先,从城市形态的本体特征、层次结构、驱动机制三方面探讨城市形态的本体论,归纳总结城市形态本体;其次,从认识论角度对城市形态进行剖析,得出对于城市形态,应遵从系统论的认识;再次,在方法论的层面,通过对城市形态诸多方法进行探讨与比较,得... 相似文献
12.
１ＩＮＴＲＯＤＵＣＴＩＯＮＭａｎｙｗｅｓｔｅｒｎｓｃｈｏｌａｒｓｓｕｃｈａｓＣｈａｎｇＳｅｎｄｏｕ（１９６３），ＣｈｅｎｇＴｉｅｊｕｎｅｔａｌ．（１９９４），ａｎｄＳｋｉｎｎｅｒＧ．Ｗ．ｅｔａｌ（１９７７）ｐｕｔｔｈｅｉｒｒｅｓｅａｒｃｈｉｎｔｅｒｅ... 相似文献
13.
有关建成区空间分布的研究是城市发展规划的重要组成部分,针对单一数据源不足以提供准确、及时的建成区信息的问题,提出了一种结合Landsat数据和夜光遥感数据的城市扩张监测方法。该文以Landsat影像与夜光遥感影像为数据源,采用SVM分类方法和突变检测阈值分割技术,提取2004—2016年的原济南市、泰安市、原莱芜市的建成区范围,然后引入城市扩张强度、紧凑度、重心轨迹转移分析和等扇形分析等指标,来定量分析城市扩张的时空变化特征。结果表明:从2004—2016年,研究区建成区面积增加了508.06km~2,原济南、泰安市均以外延式的城市发展为主,主要的趋势是北部、西部和南部;而原莱芜市则以填充型的城市发展为主,紧凑度高于其余两市,西北方向处于扩张速率的高值区;其中城市扩张强度指标定量地反映出在2004—2007年间研究区城市化进程取得重大突破,是区域城市化进程的重要阶段。相较于单一数据源,引入夜光遥感数据,可以更快速高效地提取城市建成区信息。 相似文献
14.
Spatio-temporal Analysis of Urban Spatial Interaction in Globalizing China —— A Case Study of Beijing-Shanghai Corridor 总被引：1，自引：1，他引：0
This paper aims to explore urban geography with a new perspective. Endowed with the urban geography connotations, an improved data field model is employed to integrate temporal dimension into spatial process of cities in a typical region in this article. Taking the Beijing-Shanghai Corridor including 18 cities as an example, the authors chose the city centricity index (CCI) and the spatial data field model to analyze the evolution process and features of sub-region and urban spatial interaction in this corridor based on the data of 1991, 1996 and 2002. Through the analysis, we found that: 1) with the improvement of the urbanization level and the development of urban economy, the cities' CCI grew, the urban spatial radiative potential enhanced and the radiative range expanded gradually, which reflects the urban spatial interaction's intensity has been increasing greatly; 2) although the spatial interaction intensity among the cities and sub-regions in the Beijing-Shanghai Corridor was growing constantly, the gap of the spatial interaction strength among different cities and sub-regions was widening, and the spatial division between the developed areas and the less developed areas was obvious; and 3) the intensity of the spatial interaction of Beijing, Shanghai and their urban agglomerations was far greater than that in small cities of other parts of the corridor, and it may have a strong drive force on the choice of spatial location of the economic activities. 相似文献
15.
不透水地表是衡量城市化过程与空间扩张的重要特征。本文以我国最具经济活力的城市群-粤港澳大湾区城市（以下简称大湾区）为研究区,采用重心-标准差椭圆与梯度分析等方法,探讨其1987—2017年不透水地表的时空扩张分布特征与演化趋势。结果表明：① 30年来大湾区的不透水地表面积从1839.34 km2持续增长至12 385.93 km2。城市化进程进入21世纪后明显加快,整体形成了广、深、港、澳等中心城市带动,各次级城市组团,网络结构发展的空间扩张格局。② 大湾区不透水地表重心位于广州番禺与佛山顺德交界处附近,城市建设扩张靠近大陆海岸带区域,范围不断扩大。广、莞、佛等地的城市建设极大带动了不透水地表重心与方向的变化;③ 城市建设以珠江支流与大陆海岸线为轴心扩张的特征明显,各地核心城区与海湾区域的建设扩张共同构成了大湾区的发展核心,整体形成了中心城区为主、大陆海岸线为辅的协同发展趋势。粤港澳大湾区建设已上升为国家战略,未来需进一步强化内部各城市间的要素交互,在发挥核心城区辐射引领作用的同时,充分利用沿海产业优势,带动实现大湾区的城乡融合发展。 相似文献
16.
模拟城市土地利用空间变化格局的研究,对未来区域规划以及实现可持续发展具有十分积极的作用。以往基于FLUS的研究栅格尺度较大,如何模拟快速发展中城市的复杂土地利用变化过程,挖掘土地利用变化驱动机制值得进一步探讨。本文构建了耦合FLUS和Markov的城市土地利用格局拟合框架,创新性地引入房价指标表征社会经济属性,以深圳为研究区,基于30 m空间分辨率小栅格尺度的土地利用分类数据和基础地理、路网河网、感兴趣点等多源空间变量,模拟不同发展情景下的未来城市土地利用空间格局,并通过随机森林进行土地利用变化驱动因素分析。研究结果表明:本文提出的耦合FLUS和Markov方法相较于传统CA模型（RFA-CA和Logistic-CA）精度更高（FoM=0.22）,能更准确地模拟快速发展中城市的土地利用变化过程;多情景土地利用格局制图结果验证了城市发展过程中生态控制线的重要性,进一步说明本文拟合框架在未来城市规划布局中的参考价值;医院、娱乐场所等的基础设施和公交、路网密度等的基础交通比自然因素（高程、坡度）对城市发展的影响更大,到海岸线距离会在一定程度上限制深圳内部土地利用变化过程。本研究所构建模型及精细制图结果,可为城市区域规划和空间格局模拟等相关研究提供参考依据和理论基础。 相似文献
17.
长江三角洲城市化地区植被初级生产力的时空变化研究 总被引：1，自引：0，他引：1
城市化过程对植被初级生产具有重要影响。以往研究主要集中于城市用地扩张对植被初级生产力的直接影响分析,而较少关注其间接效果。本文以长江三角洲地区为例,分别从地区尺度和城市尺度分别分析了2000-2013年植被初级生产力的时空变化,探讨了其与气温、降水量及城市建成区绿化覆盖率的关系。研究表明：地区尺度上,2000-2013年长江三角洲植被初级生产力呈现不断增加,其中城市建成区植被初级生产力呈现显著增加的趋势（P<0.05）;城市尺度上,城市建成区内植被初级生产力主要呈现增加的趋势,而其外围缓冲区内则与此相反。在当前气候变化背景下,这可能与城市建成区绿化覆盖率不断增加,及快速的城市扩张有关。 相似文献
18.
《中国地理科学(英文版)》2020,(3)
Urban agglomeration research has received increasing attention in China's national development strategies, and has become a hot topic in academic research. This study develops a theoretical framework that explores the formation mechanism and expansion process of urban agglomerations from the perspective of industrial evolution, and identifies the development issues and their causes by taking Yangtze Delta and Beijing-Tianjin-Hebei urban agglomerations as case studies. In the process of urban agglomeration formation within a free market, as has happened in Yangtze Delta region, the central city develops first, its secondary industry is then transferred to its neighboring cities, and the work division and cooperation with the neighboring cities is gradually established. However, in the 1990 s, aiming to become an international metropolis, Beijing implemented a series of administrative policies to encourage the reduction of the secondary industry and the development of the tertiary industry, before its secondary industry were fully developed and transferred to its neighboring cities. This delayed the integration process and the development of the Beijing-Tianjin-Hebei urban agglomeration. This study builds a good foundation for the construction of the theoretical system's urban agglomeration study, and provides references for decision making in an urban agglomeration development. 相似文献
19.
ZHANG Luo-cheng ZHU Tian-ming YAO Shi-mou 《中国地理科学(英文版)》2005,15(4):309-314
1IN TR O D U C TIO NC hina, as a developing country, is experiencing rapidpopulation grow th and land expansion,w hich has gen-erated considerable governm entalconcernsand scholar-ly attention (FA ZA L,2000).R esearchers have revealeda m assive increase i… 相似文献
20.
Lifeng Shi Zengxiang Zhang Fang Liu Xiaoli Zhao Xiao Wang Bin Liu Shunguang Hu Qingke Wen Lijun Zuo Ling Yi Jinyong Xu 《中国地理科学(英文版)》2016,26(6):703-714
Based on the National Land Use/Cover Database of China(NLUD-C) in the end of the 1980s(the 1980s,hereafter), 1995, 2000, 2005, and 2010, 665 cities were selected to study the size distribution and its changes of urban lands in China. In this study, the spatiotemporal evolutions of urban land size distribution as well as the influence of administrative-level on these cities were explored by combining urban spatial positions and administrative-levels. Results indicate that: 1) City size distribution using urban lands was more practical and reasonable than using non-agricultural population. 2) In the 1980s, cities with ascending urban land rank were centralized in Eastern China, specially the Changjiang(Yangtze) River Delta, the Zhujiang(Pearl) River Delta, and Beijing-Tianjin-Hebei region. Cities in Central, Western, and Northeast China mainly indicated descending urban land rank. 3) The transfer of national development focus resulted in cities with ascending urban land rank becoming evenly distributed nationwide; however, this trend was slightly centralized around Chengdu, Chongqing, and Wuhan in different periods. 4) During the 1980s to 2010, the proportion of cities with ascending urban land rank in provincial capitals, municipalities, and special administrative regions(high-level cities, hereafter) was consistently higher than those in prefecture- and county-level cities except for 2005–2010. The ranks of the majority of the prefecture- and county-level cities were mainly descending, supported by ascending; the proportion of cities with unchanged rank is small. This study breaks through the bottleneck of traditional research in the area of city size distribution by examining urban land replacing the non-agricultural population. The current study also provides scientific explanation for the healthy and reasonable development of urban land as well as the coordinated development of population urbanization and land urbanization. 相似文献