Promises and actions: are universities the problem in building partnerships?     

Peter Newby 《GeoJournal》1997,43(4):351-358

Urban planners have to develop a planning doctrine (Faludi and Van der Valk 1990). This concept stands for a body of thoughts concerning (a) spatial arrangements within an area, (b) the development of that area; and (c) the way both should be handled. To be successful, they need a planning community (planners, top officials and sub-national establishments for political support) that nurtures it. The planners of the Amsterdam General Extension Plan (1935) developed a doctrine that covers three levels of functions and activities: (1) Amsterdam is a regional centre, a closed functional system, an orthogenetic city. (2) a monocentric urban form and (3) homogeneous neighbourhood communities around a common neighbourhood centre (church, school, medical services, shops). Since the early 1970s Amsterdam has become (1) an international centre, a heterogenetic city, part of a network city system, (2) has developed into a polycentric urban region, and (3) has been acquiring ethnically mixed quarters, divided communities losing their basic function as common neighbourhood centres and even as control areas or domains (Hägerstrand 1970). So in Amsterdam the planning-doctrine was not particularly successful.  相似文献   

浙江乐清湾资源优势及其开发中的矛盾处理   总被引：3，自引：0，他引：3  

杨辉 《海洋通报》2003,22(6):49-55

通过分析浙江省乐消湾的环境条件、资源优辨及开发利用中存在的主要矛盾．来探讨乐清湾沿岸产业的合理布局和资源的优化配置。为海湾经济的可持续发展提供科学依据。由于区域行政管辖条块分割，资源开发涉及行业和地区利益敏感性强。在乐清湾的资源开发利用中出现了围涂(堵港)与养殖、围涂(堵港)与港口、港口(航道、锚地)与养殖、潮汐能与港口、滨海工业与养殖及环境保护、海水增养殖与环境保护等矛盾。为了合理、有效、充分发挥海湾的资源优辨，确保海洋经济持续健康发展，必须理顺海洋管理体制，加强海岸带综合管理：强化区域主导功能，建立科学合理的资源开发体系；严格控制围涂(堵港)，合理布局沿海工业，保持生态环境的良性循环。  相似文献   

1990-2018年土地利用/覆盖变化研究的特征和进展   总被引：2，自引：1，他引：1  

何春阳  张金茜  刘志锋  黄庆旭 《地理学报》2021,76(11):2730-2748

土地利用/覆盖变化（LUCC）是地表综合集成研究的一个学科基础和前沿领域。本文利用定性与定量相结合的方法对1990—2018年的LUCC研究进展进行了系统综述。在回顾LUCC研究历程的基础上,结合文献分析,详细总结了不同LUCC研究阶段的基本特征和主要进展。进而阐述了当前LUCC研究面临的主要挑战,提出了未来LUCC研究的主要发展方向。1990年以来LUCC研究关注度不断提升,相关英文论文发文量和引文量呈指数增长趋势。LUCC研究正从1990—2004年间的过程研究阶段和2005—2013年间的影响研究阶段迈向2014年以后的可持续性研究阶段。当前LUCC研究正面临着如何借鉴可持续科学框架、整合新兴技术和支撑国土空间规划等挑战。未来LUCC研究需要与景观可持续科学和地理设计紧密结合,积极面向国土空间规划主战场,为建设美丽中国和落实联合国可持续发展目标服务。  相似文献   

Mapping urban Māori: A population‐based study of Māori heterogeneity          下载免费PDF全文

John Ryks  Amber L. Pearson  Andrew Waa 《New Zealand geographer》2016,72(1):28-40

Urban Māori is a term that describes indigenous people in Aotearoa New Zealand living in urban environments. It includes Māori who hold traditional authority over land (mana whenua) and Māori who have moved away from their traditional homes (mātāwaka). This article describes the heterogeneity of the urban Māori population through the spatial analysis of iwi (tribal) census data for four urban centres. The results show complex variation in the distribution of mana whenua and mātāwaka populations and help to inform a discussion about the rights and interests of all urban Māori in the development and planning of cities, and subsequent policy responses.  相似文献   

Predicting air temperature simultaneously for multiple locations in an urban environment: A bottom up approach     

《Applied geography (Sevenoaks, England)》2016

Cities are characterized by high heterogeneity that results in varied microclimate effects. The current study introduces a new bottom–up approach linking the urban Canyon Air Temperature (CAT) model with spatially distributed inputs extracted from a GIS data-base and remote sensing products to predict intra-urban temperature variability simultaneously for multiple locations in an urban environment. To provide proof of concept, the model was applied for the city of Bat-Yam, Israel. Simulation shows a maximum nighttime urban heat island (UHI) intensity of 2–2.25 °C, relative to a rural reference point, during both summer and winter, with significant spatial variability related to the height-to-width ratio of urban street canyons and to the surface land cover. The CAT simulation also highlighted the important influence of the local wind regime on the development and persistence of the nocturnal UHI. We conclude that linking CAT to a GIS data-base supports simulations at the city scale that reflect the local intra-urban variability. The model can be used to investigate both macro and micro scale spatio-temporal characteristics of the UHI in various urban development scenarios, which may be applied to generate appropriate geographically-explicit mitigation and adaptation measures.  相似文献   

Assessing environmental inequalities in the city of Santiago (Chile) with a hierarchical multiscale approach     

《Applied geography (Sevenoaks, England)》2016

Environmental inequalities are a common characteristic of urban areas. Environmental inequality is the unequal spatial distribution of environmental risks and goods among social groups. As environmental inequalities are inherently a spatial matter the choice of scale is essential for correctly understanding inequality issues and for designing proper and effective mitigation policies. However, the potential effects of scale of analysis on inequalities results have largely been underestimated in the assessment of environmental inequalities, leading to contradictory results from different studies. In this study we assess the patterns of environmental inequalities and associated scale issues in the city of Santiago (Chile) using a hierarchical multiscale approach. Our approach focuses on the analysis of spatial relationships between three environmental (i.e., surface temperature, air pollution, vegetation cover) and two socio-demographic variables (i.e., household wealth, population density) on multiple grain sizes and extents. We used census data, remote sensing data, and air pollution monitoring stations to generate raster layers at five grain sizes and five nested extents. We tested for inequalities through Pearson correlation analysis resulting in a total of 1530 assessed relationships. Our results show that environmental inequalities are a prevalent phenomenon in the city of Santiago, but the details of these inequalities are highly scale dependent. Changing the grain size and extent of analysis do not only affect the strength of relationships between socio-demographic and environmental variables, but also the spatial distribution of environmental inequalities across the urban landscape. Therefore, due to the scale-dependence of assessment results, researchers and decision-makers should be extremely careful when interpreting their findings and translating them into policy making. If the scale dependency of environmental inequalities is not taken into account, policy interventions may be largely ineffective because the scale at which interventions are designed may not match the scale at which inequalities are generated.  相似文献   

Low-wage jobs-housing fit: identifying locations of affordable housing shortages     

Chris Benner  Alex Karner 《Urban geography》2016,37(6):883-903

Finding the right jobs-housing balance has long been an important concern for urban planners. More recently, attention has turned to jobs-housing fit – the extent to which housing price is well matched to local job quality. Prior analyses have been constrained by a lack of local data on job quality, making it difficult to identify the geography and scale of the problem. We introduce a new methodology for calculating the low-wage jobs-housing fit at both a jurisdiction and neighborhood scale that was designed in collaboration with affordable housing advocates and has been directly applied in urban planning and affordable housing policy efforts. Low-wage fit is particularly important because of ongoing difficulties with affordable housing provision and the disproportionate benefits of reducing transportation costs for low-income earners. We use the calculated metric at both a city and neighborhood scale to identify what can be learned from a low-wage jobs-housing fit metric that is not evident in traditional measures of jobs-housing balance. In contrast to jobs-housing balance, the low-wage fit analysis clearly highlights those jurisdictions and neighborhoods where there is a substantial shortage of affordable housing in relation to the number of low-wage jobs. Because of the geographic coverage of the data sources used, the results can be widely applied across the United States by affordable housing advocates, land-use planners, and policy makers.  相似文献   

民族旅游地区家空间的主客角色冲突研究——以丽江白沙村为例   总被引：11，自引：1，他引：10  

张机  徐红罡 《地理科学》2016,36(7):1057-1065

以社会角色与角色冲突的相关理论为指导,以云南丽江白沙村当地纳西族居民家的微观空间为研究对象,对当地居民与游客在互动过程中的角色冲突质性进行了研究。研究发现,当地少数民族居民与汉族游客在家空间的互动过程中,双方各自存在角色内冲突的现象,同时彼此之间也存在两种角色间冲突现象。互动双方在处理这些角色冲突的过程中,既反映出当地居民对经济利益的诉求,也反映出当地居民与游客在家空间中的地位与权力关系。  相似文献   

公路交通可达性视角下山东省区域空间重构   总被引：1，自引：0，他引：1  

高鹏  许可双  何丹  杨犇 《世界地理研究》2016,(4):83-92

《山东半岛蓝色经济区发展规划》、《济南都市圈发展规划》、《黄河三角洲高效生态经济区发展规划》和《鲁南经济带发展规划》是涉及山东省域范围的四个重要区域规划。四个规划所覆盖的区域范围重叠现象严重,这将导致重叠区域发展方向不明,进而会影响到区域的整体发展。明确区域规划合理范围,统筹协调区域发展成为山东省区域发展亟须解决的问题之一。本文以公路交通可达性和城市综合实力为切入点,计算出了山东省17个地级市的经济腹地,并遵循一定的原则对山东省区域发展进行空间重构,提出了"两核、四区、五轴"的区域空间发展结构。  相似文献   

基于政府大数据的北京城市空间发展模式分析   总被引：1，自引：0，他引：1  

李苗裔  戴劭勍  王静远  沈振江 《地理信息世界》2016,(3):20-26

城市的发展都有各自的特征。这些特征通常是受城市发展过程中政府决策及规划政策的影响而形成。作为我国首都,同时也是人口最稠密的城市,北京市的城市建设用地在过去20年快速城镇化进程中持续扩张。笔者认为,北京市城市扩张期间,城市建设用地开发模式有特定的规律和空间特征。本文中,笔者采用非负矩阵分解(NMF)的方法,对北京市建设用地规划许可发放数据进行挖掘,以此识别城市空间发展模式。笔者发现这个阶段包含了两种主要发展模式,同时也结合诸多辅助信息对这两种模式进行了深入的分析和解释。本文中使用的城市空间发展模式识别方法可以推广到其他区域的城市研究中,对城市设计及政府决策工作起到较大作用。  相似文献