排序方式： 共有60条查询结果，搜索用时 15 毫秒
51.
日本东京"多中心"城市发展模式的形成、特点与趋势 总被引：6，自引：0，他引：6
首先详细回顾并分析了日本东京"多中心"城市发展模式的演变过程,指出东京"多中心"模式的形成原因,主要是为了减少对中心城区基础设施的压力,并且通过在中心城区之外创造新的就业中心来缩短通勤距离.其次探讨并归纳了该模式的形成背景与特点,认为东京"多中心"模式是以发达的公共大交通为基础,城市副中心既是市民的集中居住地,又是特定产业和技术创新的集聚区,同时还是分散首都功能的大都市功能区.最后指出东京城市发展的未来趋势是要形成多功能、集约型的都市构造. 相似文献
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大都市乡村发展比较及其对乡村振兴战略的启示 总被引：2，自引：1，他引：1
乡村振兴与城市发展带动能力密切相关,大都市推进乡村振兴的条件最为成熟。论文选取14个国家中心城市与潜在中心城市,从农业强、农村美、农民富3个方面构建指标体系,采取改进熵权法与Pearson相关分析法,比较分析了2000年以来我国大都市的乡村发展水平及其影响因素,进而挖掘其对实施乡村振兴战略的政策含义。研究表明：南方都市的乡村发展水平普遍高于北方城市,高低不一的乡村发展水平意味着较高的城市发展阶段并不必然实现真正的城乡融合发展。乡村发展水平与经济发展阶段、地方财政能力、农户生计分化、农业产业结构等因素高度相关,因此,乡村振兴是一个循序渐进的推进过程,需要立足自身发展基础制订科学的乡村振兴目标与振兴措施;也需要立足农业、跳出农业,一方面通过转移支付保障粮食主产区、传统农区的发展权益,另一方面“接二连三”拓展乡村产业增值空间;尤需打破城乡治理分割现状,在理念、规划、政策、法规等多个方面将农业农村优先发展真正落到实处。 相似文献
53.
建设广州现代化中心城市的构想 总被引：2，自引：1，他引：1
讨论了建设广州现代化中心城市的基础现状、中心城市的条件、中心城市的战略选择、地域空间结构和地位构建等问题,分析了它的优势生面临的挑战;提出了广州市发展目标的战略选择和建成现代化中心城市的标志,构建了地域空间结构的模式,即：城市圈层结构、城市主轴线、城市中心、城市副中心和卫星城。并指出,作为现代化中心城市的广州,必须拓宽视野,转变观念,立足广州,面向华南、全国和海外,在强化“龙头”带动作用的前提下, 相似文献
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55.
Daniel Buor 《GeoJournal》2002,56(2):145-157
The research primarily aims at testing a model, adapted from existing models, on the influence of distance on the use of health services in the Kumasi metropolis, an expanding urban centre in Ghana. Primary data, collected between August 2000 and February 2001, were used for the study. The data were analysed using a multiple regression model and compound bar graphs. A sample of 250, drawn through systematic random and stratified procedures, was used for the cross-sectional retrospective survey. Data were collected through formal interview schedules, after preliminary observational survey. The survey has established three principal findings. First, distance shows a strong inverse relationship with the utilisation of health services in the metropolis. Second, travel time and transport cost, variables that are related to distance, exhibit a weak negative and positive associations respectively with the use of health services. Third, the vulnerable groups of women, the aged, the sickly, the illiterate and the poor are not affected by distance decay in the utilisation of health services. Finally, independent variables that are statistically significant in influencing utilisation, alongside distance, are education, service cost, quality of service and health status. Recommendations for locational modelling of health services at the deprived periphery, an introduction of an insurance scheme to facilitate health care use, and recommendations for further research have been made. 相似文献
56.
国外大都市郊区农村休闲需求及旅游发展特点研究 总被引：5，自引：0，他引：5
总结了国外大都市郊区旅游发展的9个特点,主张综合运用盖恩的环带旅游模型、作者提出的海港型大都市半环带旅游模型、罗多曼模式、克罗森＆吉.来奇模式,结合大都市郊区自然及文化资源、城市特色等制定最优的郊区旅游发展战略和景观规划。 相似文献
57.
Current global urbanisation processes are leading to new forms of massive urban constellations. The conceptualisations and classifications of these, however, are often ambiguous, overlap or lag behind in scientific literature. This article examines whether there is a common denominator to define and delimitate–and ultimately map–these new dimensions of cityscapes. In an extensive literature review we analysed and juxtaposed some of the most common concepts such as megacity, megaregion or megalopolis. We observed that many concepts are abstract or unspecific, and for those concepts for which physical parameters exist, the parameters are neither properly defined nor used in standardised ways. While understandably concepts originate from various disciplines, the authors identify a need for more precise definition and use of parameters. We conclude that often, spatial patterns of large urban areas resemble each other considerably but the definitions vary so widely that these differences may surpass any inconsistencies in the spatial delimitation process. In other words, today we have tools such as earth observation data and Geographic Information Systems to parameterise if clear definitions are provided. This appears not to be the case. The limiting factor when delineating large urban areas seems to be a commonly agreed ontology. 相似文献
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基于垄断竞争的大都市商业空间结构动态模拟 总被引：2，自引：1，他引：1
本文构建了一个基于垄断竞争、规模经济、交通成本、消费者多样化偏好以及商品和服务差异化的大都市两区域商业空间结构模型。提出了经济学演绎模型与基于agent 的计算实验相结合的研究路径,通过对商家、消费者等大量微观自主体(agent) 的相互作用来“动态地”观察和讨论大都市新、老城区宏观商业空间结构的微观基础、影响因素和演化过程。研究结果表明,①在商品和服务替代性、购物交通成本设定的情形下,新、老城区商业固定成本投入差距越大,则商业空间分布越不均衡,越易形成核心-边缘结构。② 由于居民的消费存在多样化偏好,因此强化区域间的差异性有助于改变商业的市场份额。③ 商业往往集聚在具有区位优势、人口规模优势以及固定成本优势的地区,而且交通条件的改善将加速商业的空间集聚。研究认为,空间经济学演绎模型与推导→基于agent 的地理计算→实证分析与计量检验是一个值得探索的技术路线。 相似文献
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Hui ZHANG 《中国地球化学学报》2006,25(B08):142-142
The Huangpu River supplies eighty percent of daily water used for life and industry for about 20 million people in Shanghai, China. Industry and domestic sewerage from the metropolis is mainly released into the Huangpu River, which flows through the Shanghai City area. The pollution caused by city life and production in the Huangpu River has occurred for years. In this paper, the contents of heavy metals （Cu, Pb, Cr, Cd, and Hg）, total organic carbon （TOC）, and polynuclear aromatic hydrocarbons （PAHs） in the Huangpu River are studied. Data from environmental monitoring from 1991 to 2002 are compared to understand the variation and trends of the pollution. Results indicate that metals have been reduced efficiently, but organic pollutants develop in an aggravating trend as domestic sewage increases. The variation of the organic pollutant concentrations, which are lower than those of other similar rivers of China, US, and Canada, 相似文献