共查询到19条相似文献，搜索用时 171 毫秒
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在土地资源紧缺等"城市病"问题愈发突出的背景下,提高土地集约利用效率是国土资源管理的重点研究方向。为支撑城市土地空间资源集约利用研究,本文在深入研究城市土地利用评价及空间演化模拟技术的基础上,基于C#.NET开发平台,结合ArcGIS Engine组件技术,研发了城市土地空间利用评价预警调控系统,实现土地空间利用评价、预警及政策仿真调控等功能,作为科学管理土地的辅助工具。本文对系统的总体需求、系统结构及主要功能设计与实现进行了阐述,以期为土地资源管理研究及相关软件研发提供参考。 相似文献
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为了统计甘肃省地级城市城区空间扩展变化趋势及规律，为西部城市的规划建设和可持续性发展提供空间地理信息参考依据，本文以甘肃省地级城市为研究对象，利用城市多年航空航天遥感影像及城市规划、统计等相关资料，采用遥感监测及地理信息空间技术，通过研究城市城区空间扩展的范围、速度及强度等指标因素，对甘肃省地级城市2000—2020年间城市城区扩展变化原因进行分析，结果表明：在近20年时间里，甘肃省地级城市空间格局在政策引导、经济发展、城市建设规划布局、人口增长等因素的作用下不断扩展，城市建设也得到了前所未有的发展，其分析结果可以为甘肃省地级城市的规划建设、城市的科学管理决策以及区域发展战略与规划实施提供重要的空间地理信息依据和参考信息。 相似文献
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通过对新区城乡建设用地和城市建设用地空间格局变化监测，分析其变化特征，对新区未来建设和发展以及推动生态文明建设有重要指导意义。本文以赣江新区为例，从建设用地空间形态模式、空间重心指数、空间紧凑度、空间形状分形维数等方面，分析了赣江新区2017—2018年建设用地空间格局变化特征，研究结果表明：(1)城乡建设用地和城市建设用地总量均呈现逐步增长的态势，并符合规划；(2)新区属于组团型发展模式，建设空间重心整体向东北方向扩张；(3)为有关政府部门继续推进新区建设和规划调整提供参考依据。 相似文献
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为揭示城镇化背景下武汉市人口时序增长趋势和人口空间分布格局演变特征,本文基于1990年第四次、2000年第五次、2010年第六次全国人口普查和2014年武汉市人口普查数据,运用统计学原理和GIS空间分析方法,分析了武汉市人口增长的时空变化规律;应用人口密度空间分布的数学模型,得到武汉市人口空间分布格局的演变趋势。人口增长研究表明:1990年以后,武汉市人口数量迅速增长,总体上形成了中心聚集、外围扩散的空间发展格局。空间分布研究表明:1)武汉市的人口密度分布更加符合Clark模型,主城区Smeed模型拟合效果更好。近25年来,武汉市城镇化进程迅速,人口向主城区聚集。随着时间发展,主城区逐步呈现初级阶段的郊区化。2)武汉市主城区人口空间分布已经出现多中心化的趋势,并且已经有两个街道发育成为人口次中心。研究结果可为武汉市人口相关决策的制定和城市结构调整提供参考依据,有助于认识我国中部崛起城市的发展规律,为其他城市的发展和规划提供参考和借鉴。 相似文献
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在全国地级以上城市以及典型城市群空间格局监测项目中,根据城市用地增长弹性系数判断城市空间扩展的协调性.结果表明,2000-2016年全国大多数城市用地增长弹性系数大于最优值1.12.分析了城市用地增长弹性系数最优值的来源以及城市空间扩张与人口增长关系的相关研究成果,将人均城市用地面积与城市用地增长弹性系数结合起来,用于... 相似文献
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一种城市形态中的空间可视分析方法 总被引：4，自引：0，他引：4
空间可视分析是空间句法的重要依据,是进行城市空间形态分析的新方法。在视域的行为指导原理上,采用可视集中性的概念来进行可视分析,进而通过可视分析各参数的具体量化,包括视域面积、视线长度等,将其应用到具体的城市街道形态中,分析各参数量化大小的分布情况。研究城市形态中可视分析通过“视域法则”影响人的行为,从而潜在决定城市内有关行人等基础设施的布局情况,现实中的设施分布也证明了这种分析的正确性。以武汉市中南地区为分析实例,说明上述各过程,验证城市形态对空间设施分布的影响。 相似文献
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本文探讨了数字城市空间管治信息质量体系。通过分析空间准入评价与空间管制决策指标体系，提出数字城市空间管治质量指标体系。 相似文献
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金明一 《测绘与空间地理信息》2016,(11)
准确掌握城市空间发展情况及过程,判别城市空间发展的趋势,为城市整体发展制订合理规划有重要的现实意义。本文选取1995~2015年间4个时段的影像数据,提取不同时间段的城市空间范围,利用GIS空间分析技术对哈尔滨市城市空间扩展情况进行监测。分析结果显示,哈尔滨城市空间较为离散,主城区面积逐年增加,年均增长保持在10%以上,2005年后增速明显加快,2015年城区范围趋于稳定。 相似文献
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数字城市空间管治动态信息分类标准研究 总被引：3，自引：1，他引：3
探讨了数字城市空间管治信息需求与分类体系。通过分析空间准入评价与空间管制决策指标体系，提出数字城市空间管治信息分类体系模型。 相似文献
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This paper aims to use spatial statistical tools to explore the reciprocal spatial–temporal effects of transport infrastructure and urban growth of Jeddah city, a fast developing polycentric city in Saudi Arabia. Global spatial autocorrelation (Moran's I) and local indicators of spatial association (LISA) are first used to analyze the spatial–temporal clustering of urban growth and transport infrastructure from 1980 to 2007. Then, spatial regression analysis is conducted to investigate the mutual spatial–temporal effects of urban growth and transport infrastructure. Results indicate a significant positive global spatial autocorrelation of all defined variables between 1980 and 2007. LISA results also reveal a constant significant spatial association of transport infrastructure expansion and urban growth variables from 1980 to 2007. The results not only indicate a mutual spatial influence of transport infrastructure and urban growth but also reveal that spatial clustering of transport infrastructure seems to be influenced by other factors. This study shows that transport infrastructure is a constant and strong spatial influencing factor of urban growth in the polycentric urban structure that Jeddah has. Overall, this study demonstrates that exploratory spatial data analysis and spatial regression analysis are able to detect the spatial–temporal mutual effects of transport infrastructure and urban growth. Further studies on the reciprocal relationship between urban growth and transport infrastructure using the study approach for the case of monocentric urban structure cities are necessary and encouraged. 相似文献
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Urban sprawl has led to environmental problems and large losses of arable land in China. In this study, we monitor and model urban sprawl by means of a combination of remote sensing, geographical information system and spatial statistics. We use time-series data to explore the potential socio-economic driving forces behind urban sprawl, and spatial models in different scenarios to explore the spatio-temporal interactions. The methodology is applied to the city of Wuhan, China, for the period from 1990 to 2013. The results reveal that the built-up land has expanded and has dispersed in urban clusters. Population growth, and economic and transportation development are still the main causes of urban sprawl; however, when they have developed to certain levels, the area affected by construction in urban areas (Jian Cheng Qu (JCQ)) and the area of cultivated land (ACL) tend to be stable. Spatial regression models are shown to be superior to the traditional models. The interaction among districts with the same administrative status is stronger than if one of those neighbors is in the city center and the other in the suburban area. The expansion of urban built-up land is driven by the socio-economic development at the same period, and greatly influenced by its spatio-temporal neighbors. We conclude that the integration of remote sensing, a geographical information system, and spatial statistics offers an excellent opportunity to explore the spatio-temporal variation and interactions among the districts in the sprawling metropolitan areas. Relevant regulations to control the urban sprawl process are suggested accordingly. 相似文献
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Lifeng Shi Hannes Taubenböck Zengxiang Zhang Michael Wurm 《International Journal of Digital Earth》2019,12(1):78-94
Urbanization in China has been experiencing a remarkable dynamism in the past 40 years. The most evident implication of urbanization is the physical growth of cities. We analyze urban land growth rates and changes in spatial urban forms from the end of the 1980s to 2010 based on the authoritative National Land Use/Cover Database of China. We present new spatial measures that describe ‘urban land growth types’ and ‘fluctuations in urban land growth’ within the monitoring time span with a temporal interval of five-year steps. We evaluate the correlations between urban land growth rates and socioeconomic data. Results show that (1) distinct characteristics exist on the spatiotemporal evolutions of urban land growth rates in terms of area and perimeter, e.g. coastal areas exhibit the most dramatic growth rates; (2) the spatial distribution characteristics of ‘urban land growth types’ and ‘fluctuations in urban land growth’ follow similar spatial patterns across China, e.g. significant differences exist between the eastern region and other regions; and (3) a moderate correlation exists between urban area growth rate and urban population growth rate at an R² of 0.37. By contrast, we determine no significant correlation between urban area growth rate and tertiary industry value growth rate. 相似文献
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基于ArcGIS和Oracle Spatial的城市空间基础数据库系统 总被引：3，自引：0，他引：3
介绍了利用ArcGIS和Oracle Spatial实现“图属一体化”的城市空间基础数据库系统的方法与技术,特别针对数据组织和系统开发的关键技术进行了阐述。 相似文献
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将空间决策支持系统的概念和理论引入到城镇土地佑价中,基于GIS平台建立了城镇土地估价空间决策支持系统.对该系统设计目标与需求分析、系统结构、数据库设计等进行了阐述,并介绍了该系统的功能.通过城镇土地估计空间决策支持系统的建立使城镇土地佑价工作更加科学化、系统化、信息化. 相似文献
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A multi-equation spatial econometric model,with application to EU manufacturing productivity growth 总被引：1，自引：0，他引：1
Bernard Fingleton 《Journal of Geographical Systems》2007,9(2):119-144
A multi-equation spatial econometric model is used to explain variations across EU regions in manufacturing productivity growth
based on recent theoretical developments in urban economics and economic geography. The paper shows that temporal and spatial
parameter homogeneity is an unrealistic assumption, contrary to what is typically assumed in the literature. Constraints are
imposed on parameters across time periods and between core and peripheral regions of the EU, with the significant loss of
fit providing overwhelming evidence of parameter heterogeneity, although the final model does highlight increasing returns
to scale, which is a central feature of contemporary theory.
相似文献
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本文研究了城市给排水管网信息系统的数据结构及其建立方法,以及在微机上利用C语言进行城市给排水信息系统的设计,实现了部分空间分析功能。 相似文献
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For regulating urban growth, it is imperative to produce urban growth zonation maps, in which future urbanizable areas along with their urban growth potential are delineated. As, these maps provide a rational and scientific basis for taking future decisions regarding the growth of the city. The conventional approach for generating urban growth zonation maps is subjective in nature. To reduce this subjectivity, an artificial neural network (ANN) approach has been proposed for generating urban growth zonation maps. The database required for ANN-based urban growth zonation has been compiled from remote sensing data and other existing maps. GIS is used for handling of this spatial data. A comparison of the ANN- and conventional approach-derived zonation maps was also done. The study demonstrated the potential of ANN for urban growth zonation of an area, which may provide a valuable input to the urban planning authorities for regulating urban growth 相似文献