城市热岛效应的研究模型

城市热岛不但影响城市气候,而且严重影响城市的大气环境,城市发展的多样性决定了城市热岛的复杂性、研究模型的多样性。本文通过对城市热岛常用的研究模型进行了分析、比较,为城市热岛研究模型的选择和进一步研究城市热岛的机理以及城市热岛对城市环境的影响提供了参考依据。     

Moving from agenda to action: evaluating local climate change action plans

Climate change is conventionally recognised as a large-scale issue resolved through regional or national policy initiatives. However, little research has been done to directly evaluate local climate change action plans. This study examines 40 recently adopted local climate change action plans in the US and analyses how well they recognise the concepts of climate change and prepare for climate change mitigation and adaptation. The results indicate that local climate change action plans have a high level of ‘awareness’, moderate ‘analysis capabilities’ for climate change, and relatively limited ‘action approaches’ for climate change mitigation. The study also identifies specific factors influencing the quality of these local jurisdictional plans. Finally, it provides policy recommendations to improve planning for climate change at the local level.     

Government response to climate change in China: a study of provincial and municipal plans

In this paper, we provide an overview of local and regional climate change plans in China by scrutinizing planning documents from 16 cities, four autonomous regions, and 22 provinces. We develop and apply an evaluation protocol to understand goals, process, and strategies in these plans. We also conduct interviews with government officials to provide a context for subnational climate change planning. The results indicate that current climate change planning in China is characterized by the ‘top-down’ approach, in which the central governmental incentives play a vital role in shaping provincial and municipal plans. In addition, most plans have the following issues: vague definition of what characterizes a low-carbon city/region; deficiency in the quality of greenhouse gas inventory and reduction targets; insufficient strategies provided to respond to climate change; inadequate stakeholder engagement; and weak horizontal coordination. Finally, we offer recommendations to improve climate change planning in China.     

Promoting community economic development: an assessment of an experimental scheme in cleveland

Traditional economic planning policies do not, largely, benefit residents of run‐down inner city neighbourhoods. Planners have therefore begun to look at other ways to improve the economic well‐being of unemployed people in such areas. One such initiative has been the location of Community Employment Development Officers in economically depressed areas by Cleveland County Council — one of Britain's unemployment blackspots. Their remit is to encourage and initiate action to create jobs and this paper looks at the experiment, drawing out some of the lessons.     

城市规划环境影响评价指标体系综述

城市规划是实施城市可持续发展战略的重要载体。城市规划环境影响评价的内容应集中体现在评价指标体系上。本文首先将城市规划环评指标分为总体规划和下位规划(专业规划、详细规划)两个层面,再分别系统论述城市总体规划和专业规划环评指标体系主要内容和结构,指出当前城市规划环评指标体系建立、内容、实施、总体与下位规划协调等方面的问题,奠定城市规划环评指标体系研究基础并为未来研究指明方向。     

Cocky and climate smart? Climate change mitigation and place-branding in three Swedish towns

Sustainable development has emerged as a distinctive marker of place identity in addition to traditional markers such as buildings and spectacles. Climate change mitigation as a potential place brand, indicating sustainable development, is in focus of this article, comparing such efforts in three Swedish towns. Based on documentary studies and interviews, it demonstrates how one town has been successful in branding itself as “the Greenest City in Europe”, whereas mitigation efforts in two other towns are barely known outside the town halls. In the first case, a combination of material, symbolic, and institutional components has been decisive in establishing a brand with internal and external legitimacy. This case highlights the importance of a dedicated network of influential actors and a potent governance structure visualising the will of a town to make its climate mitigation efforts known. Despite similar material conditions, the two others come short on the symbolic and the institutional dimensions, although they may still have a potential for future success in terms of mitigation both in practice and as a marker of identity.     

Urban development grant — an early assessment of regional implications

An examination of the Urban Development Grant during its first round of operation reveals that certain regions, particularly the West Midlands and London, are winning considerably more funding than others. A change in this trend is likely to require a reassessment, by the Government, of the targetting criteria presently used to direct the grant to areas of need.     

Effects of Increasing Urbanization on the Ecological Integrity of Open Space Preserves

This article analyzes the effects of increasing urbanization on open space preserves within the metropolitan area of Phoenix, Arizona, USA. Time series analysis is used in 10-year increments over 40 years to study urban landscape change. Three landscape metrics—(1) matrix utility (measures intensity of adjacent land uses), (2) isolation (measures distances to other open space patches), and (3) connectivity (measures physical links to other open space patches and corridors)—are used to assess changes in landscape patterns and serve as indicators of urban ecological integrity of the open space preserves. Results show that in the case of both open space preserves, general decline in indicators of urban ecological integrity was evident. The matrix utility analysis demonstrated that increasing intensity of land uses adjacent to preserve is likely to increase edge effects, reducing the habitat value of interior or core habitat areas. Isolation analysis showed that both preserves have experienced increasing isolation from other open space elements over time. Also, connectivity analysis indicated that terrestrial connections to other open space elements have also deteriorated. Conclusions of this research demonstrate that while preservation of natural areas as open space is important in an urban context, intense development of surrounding areas reduces the urban ecological integrity significantly.     

气候变化视角下的污染场地绿色可持续修复新方向

全球气候变化背景下,绿色可持续修复已成为修复领域的必然趋势。极端天气频发和水文条件改变等气候变化会影响污染场地修复工程实施和修复技术适用性等,绿色可持续修复亟待进一步发展和完善。弹性修复是在绿色可持续修复的基础上,进一步应对和适应气候变化的新兴修复方向。英美等发达国家已经初步发展了弹性修复的理论和实践,本文通过探究污染场地修复与气候变化的交互作用,借鉴发达国家的相关经验和实践案例,为我国污染场地绿色可持续修复适应气候变化提出发展建议。     

Planning process influences on sustainability in Ohio township plans

This study examines planning process influences on plan sustainability scores for 46 township plans in Central Ohio, in the Midwestern Region of the United States. Townships face many similar development challenges as exurban communities along with cultures and economies which straddle urban and rural perspectives. The empirical analysis shows that participation breadth is positively related to sustainability scores, while the use of the sustainability concept in the planning process is negatively related to sustainability scores. Based on the findings, we suggest that communities preparing a comprehensive plan should encourage participation by a variety of groups in the planning process. Future research should examine the manner in which the sustainability concept is incorporated into the planning process to better assess its influence.