首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 62 毫秒
1.
目前城镇体系规划在各地区相应开展,但作为城镇体系规划重要内容之一的生态与环境保护规划却没有得到普遍重视,这与城市可持续发展战略是不相适应的.从城镇体系规划角度出发,简述了生态与环境保护规划的要求、内容及作用,并以潮州市为例,对生态与环境保护规划进行了探讨,为城镇的开发与可持续发展提供决策依据.  相似文献   

2.
With urban populations worldwide expected to witness substantial growth over the next decades, pressure on urban land and resources is projected to increase in response. For policy-makers to adequately meet the challenges brought about by changes in the dynamics of urban areas, it is important to clearly identify and communicate their causes. Floods in Douala (the most densely populated city in the central African sub-region), are being associated chiefly with changing rainfall patterns, resulting from climate change in major policy circles. We investigate this contention using statistical analysis of daily rainfall time-series data covering the period 1951–2008, and tools of geographic information systems. Using attributes such as rainfall anomalies, trends in the rainfall time series, daily rainfall maxima and rainfall intensity–duration–frequency, we find no explanation for the attribution of an increase in the occurrences and severity of floods to changing rainfall patterns. The culprit seems to be the massive increase in the population of Douala, in association with poor planning and investment in the city's infrastructure. These demographic changes and poor planning have occurred within a physical geography setting that is conducive for the inducement of floods. Failed urban planning in Cameroon since independence set the city up for a flood-prone land colonization. This today translates to a situation in which large portions of the city's surface area and the populations they harbor are vulnerable to the city's habitual annual floods. While climate change stands to render the city even more vulnerable to floods, there is no evidence that current floods can be attributed to the changes in patterns of rainfall being reported in policy and news domains.  相似文献   

3.
城市的建设与发展都以特定的地貌体为基础,城市地貌环境与城市规划关系密切。简述了在城市规划和城市土地利用条件下,国内外城市地质、城市地貌、城市地貌灾害与城市地貌环境质量综合评价的历史与发展,讨论了当前城市地貌环境研究存在的问题和研究方向。  相似文献   

4.
从社区规划的角度出发,参考国际先进案例,探讨了如何在社区的设计和运营规划中建立有效的废弃物管理机制;通过人口规模等指标合理确定社区垃圾管理技术方案和实施策略;提出从规划层面预防"城市病",解决城市生活垃圾处理的难题。  相似文献   

5.
This paper suggests a number of benefits in identifying urban and regional planners as a public in public participation programs of water resources planning studies. A perspective on public participation is presented. Recent trends and developing concepts are identified: emphasis on the need to coordinate urban and regional planning activities with water resources planning, increasing system complexity, the goals and objectives orientation of planning, planning for multi-objectives, the evaluation of a broader range of alternatives, and the consideration of water alternatives as only one set of measures to further society's aspirations. One way to assist in capitalizing on these trends is to seek out participation of those in other planning efforts who are involved in planning but on a different level. Because of their intimate knowledge of an areas history, growth and development, political climate, local perceptions of needs and desires, and major problems and issues they are able to contribute a great deal of insight in making the water resources planning effort more responsive at the local level. The paper describes one of the first major efforts at working-level public-planner contact which was carried out as part of the Susquehanna River Basin Study. A regional survey team comprised of an engineer and an economist from a federal agency and a state water resources planner met informally with planners, city managers, and local planning commissions to discuss issues related to water resources and the growth and development of local areas. This effort while only part of the overall public participation program yielded a number of benefits and if expanded and refined would be a very useful experience in other studies.  相似文献   

6.
The aim of our article is to follow how global policy models affect local policy making. Each city has unique local challenges in promoting development, e.g. economic growth, but also needs to find a balance between these targets and demands for sustainable city solutions. In our empirical study, we follow how ideas of waterfront development – to attract new inhabitants and promote economic growth – and global demands of carbon control were used interactively in a strategic spatial planning process in the city of Tampere, Finland. During the six-year planning process, these two policy targets became interdependent, created a new policy-making domain, and led to a combinatorial development of sustainability elements arising from this domain. These findings demonstrate the serial use of global policy models in the creation of a local urban ‘sustainability fix’. To conclude, the intertwinement of diverse global policy models in a city planning process creates easily a recursive cycle that redefines urban sustainability within cities and intercity networks. This perspective makes local policy narratives and strategic planning highly important in urban sustainability research as promoting urban sustainability becomes an inherently ambivalent practice.  相似文献   

7.
城市环境总体规划是对城市中长期环境管理的综合安排,是环境保护基础性的规划,其核心问题在于规模、结构和布局,即从城市环境、资源与生态约束角度为社会经济发展规划、城市总体规划与土地利用规划提出限制(环境、资源与生态红线),从环境承载力与发展生态适宜性分区角度为城市发展规划提出发展适度规模、结构与布局。在城市"多规融合"的实践过程中,城市环境总体规划,作为政府综合决策的重要支撑之一,可以为其他的规划编制提供约束条件以及土地供给能力测算值,使得各规划间能够相互支撑、相互融合,因此有必要先行。本文以北京市丰台区环境总体规划为例,从布局角度出发,基于区域土地资源供给能力对丰台区进行土地生态适宜性评价,并得到土地生态适宜性区划图,从而提出丰台区城市总体规划与土地利用规划的限制条件,为城市环境总体规划先行提供科学依据。  相似文献   

8.
Tony Matthews 《Local Environment》2013,18(10):1089-1103
This paper characterises climate change as a “transformative stressor”. It argues that institutional change will become increasingly necessary as institutions seek to reorientate governance frameworks to better manage the transformative stresses created by climate change in urban environments. Urban and metropolitan planning regimes are identified as central institutions in addressing this challenge. The operationalisation of climate adaptation is identified as a central tenet of a comprehensive urban response to the transformative stresses that climate change is predicted to create. Operationalisation refers to climate adaptation becoming incorporated, codified and implemented as a central tenet of urban planning governance. This paper has three purposes. First, it examines conceptual perspectives on the role of transformative stressors in compelling institutional change. Second, it establishes a conceptual approach that characterises climate change as a transformative stressor requiring institutional change within planning frameworks. Third, it reports emergent results and analysis from an empirical inquiry which examines how the metro-regional planning regime of Southeast Queensland has responded to climate change as a transformative stressor via institutional change and the operationalisation of climate adaptation.  相似文献   

9.
城市河流环境规划方案分析   总被引:1,自引:0,他引:1  
河流流域的概念从20世纪30年代起开始被应用于环境规划管理中,相关的环境规划方法有很多。本文对城市中河流的环境规划从其原理、意义及各种具体措施等方面进行了论述,阐述了目前城市河流环境规划所具有的特点及面临的问题,对该规划的发展进行了展望。  相似文献   

10.
The use and development of natural resources is becoming a critical concern, especially considering the economic development and stability of the world money market. The question here is one of resources as a political weapon. As resources become more scarce, it becomes necessary to make greater intensive use of resources that are presently available. One dimension that has been missing is the development of urban areas. Resources in this domain have been abused and the question now is how to incorporate these types of decisions into land-use planning to refurbish urban areas. Planning is the key to use of a resource. The world can no longer afford crisis planning. The key dimension to future success in resource problems is preventive planning.  相似文献   

11.
城市规划与城镇土地定级之间的相互影响是多方面的。一是城市规划纲要、城市总体规划以及控制性详细规划的编制,分别从宏观和微观两方面影响着城镇土地定级工作;而城市规划的不同实施方式和不同实施程度对具体地块土地级别以及城镇土地级别空间分布格局有着直接和较大的影响。二是城镇土地级别现状和城镇土地级别变化趋势分析,潜在影响着城市规划方案设计、城市规划方案决策、城市规划实施和管理过程,并为其提供依据和指导。在此基础上,如何量化城市规划对城镇土地定级的影响值得进一步具体研究;发挥城镇土地定级工作的作用,更好地为城市规划服务,解决人们的住房问题,更值得深入思考。  相似文献   

12.
While public health and urban planning were closely linked in the past, today both domains are institutionally separate. In most cases, health intersects with spatial planning processes only through obligatory evaluations, such as environmental impact assessments, or restrictive environmental legislation. This institutionalisation of health criteria in most western countries has difficulty in dealing with recent environmental health challenges, leading to continual distrust and conflict between citizens and the government. This impasse has recently been discussed by academics who acknowledge the complexity of both city and health issues. It seems, however, that the full extent of the issue has not been covered yet, leading to recommendations and frameworks that are useful but fixed and retrospective. This paper moves beyond those fixed frameworks to develop a better understanding of the complexity of the current disconnect and explores ideas for a future planning approach, grounded on new ideas of co-evolutionary and adaptive planning.  相似文献   

13.
ABSTRACT The role of water resources in the urban economic and social environment, particularly in the inner city, has never been established to the degree necessary for making informed decisions on investments in urban waterway and shoreline improvements. The basic tools for measuring psychological and social impacts of waterway and shoreline developments in the inner city have not been fully developed and utilized to date. However, through a detailed analysis of the water resources in the urban core area of Cleveland, it appears that deliberate development of water-based recreation and other environmental resources can lead to improvement in some of the social problems of the inner city. In recreation analysis, there is currently a great gap between methodologies that are conceptually sound and those that have been applied by urban and water-resources planning agencies. New tools and methodologies can only be used successfully when public agencies are given the institutional and policy means for using them equitably in light of social needs. Present urban-water planning practices have been found to be biased against the inner city, often unintentionally.  相似文献   

14.
Toronto is among the fastest-growing urban regions in North America. Regional efforts to preserve rural landscapes and remnant habitat have had variable success. In the 1990s, significant conflict emerged over proposals to build large housing developments on portions of the Oak Ridges Moraine, a 160-km stretch of environmentally sensitive land along the city’s northern edge. After years of planning conflict, Ontario’s provincial government created the Oak Ridges Moraine Conservation Plan, an Act of the Ontario Legislature. The Plan represents a dramatic change in Ontario’s approach to conservation planning. We examine the development and implementation of the Conservation Plan as an example of environmental planning policy in a complex urban setting. Data from interviews with policy actors, planning agency documents, and geospatial sources are used to construct an analysis and discussion of the Plan and its implementation. From a policy research perspective, the evolution and implementation of the Plan require analysis and monitoring to better understand how such approaches can best be implemented. The Conservation Plan marks a change in policy in Ontario, and the implementation process highlights challenges in putting conservation plans into practice.  相似文献   

15.
城市规划环境影响评价指标体系综述   总被引:3,自引:0,他引:3  
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。  相似文献   

16.
Megacities in low- and middle-income countries face unique threats from climate change as vulnerable populations and infrastructure are concentrated in high-risk areas. This paper develops a theoretical framework to characterize adaptation readiness in Global South cities and applies the framework to Dhaka, Bangladesh, a city with acute exposure and projected impacts from flooding and extreme heat. To gather case evidence from Dhaka we draw upon interviews with national and municipal government officials and a review of planning documents and peer-reviewed literature. We find: (1) national-level plans propose a number of adaptation strategies, but urban concerns compete with priorities such as protection of coastal assets and agricultural production; (2) municipal plans focus on identifying vulnerability and impacts rather than adaptation strategies; (3) interviewees suggest that lack of coordination among local government (LG) organizations and lack of transparency act as barriers for municipal adaptation planning, with national plans driving policy where LGs have limited human and financial resources; and (4) we found limited evidence that national urban adaptation directives trickle down to municipal government. The framework developed offers a systematic and standardized means to assess and monitor the status of adaptation planning in Global South cities, and identify adaptation constraints and opportunities.  相似文献   

17.
Public parks are important to urban environments, residents, and visitors. Among other functions, they provide environmental services, such as air and water purification, and they increase both recreational opportunities and the attractiveness of the urban environment. Because of their importance, urban parks serve as public spaces that provide visitors and urban residents with rights to the city. This paper identifies the dearth of urban public parks in Accra-Tema city-region as worrying. The Accra Plan 1958 underscored the significance of green spaces and designated the coastal strip for parks development but the areas have been lost to various urban uses. We argue that the continual neglect of public parks within urban planning and community development schemes in the Accra-Tema city-region is a major concern because it is depriving the citizens a right to the city and its public spaces. A number of factors have worked adversely against the provision of public parks and green spaces in the city-region. These include development pressures, undue political interference, a complex land delivery system, and ad hoc planning. The paper concludes by offering policy suggestions as to how to resolve the dearth of parks and green spaces in the city-region.  相似文献   

18.
In urban ecosystems, the ecological system has become completely unbalanced; this, in turn, has led to an increase in well-known problems such as air pollution, ground pollution, and water pollution. This imbalance has also led to the growth and spread of pathogens harmful to man, animals, and plants. Urban sustainability indicators, both global and local, also “indicate” the percentage of population, but these refer only to the human population, not the animal population. Cities need good waste, water, and air management, effective traffic planning, and good zoning of businesses, crafts, and services; over and above these activities, cities also need for planning to take into account the existence of pets (dogs, cats, and etc.) and nonpet animals (insects, birds, mice, etc.). Cities tend to be designed around humans and “on a human scale,” without taking into account the fact that a huge animal population is living side by side with people. That explains why overcrowding tends to go hand in hand with urbanization; all these populations, including humans, need to adapt to new spaces and often need to drastically change their behavior. This is a fact that must be included when drafting sustainable city plans. The supposed strategy is that of “integrated-participatory” control of the interactions between the environment and animals in the cities. Strategy will focus on the development of integrated approaches and tools for environment and animal management in the context of urban settings. This will require such specific methods as ecological balance sheets and ecoplans for the planning, management, and control of the interrelation among environment, animal, and public health. The objective is to develop a better understanding of urban biodiversity and of urban ecosystem functioning, in order to understand and minimize the negative impacts of human activities on them. The research will focus on assessing and forecasting changes in urban biodiversity, structure, function, and dynamics of urban ecosystems, with relationships among society, economy, biodiversity, and habitats.  相似文献   

19.
城市景观生态规划是景观生态学研完的领域之一,随着城市环境问题的出现,以及人们需求的提高,用景观生态设计理念来解决城市资源、环境和发展问题已成为当今社会的一个重要课题。本文以常州市为例,探讨以“生态基础设施建设”与“人文生态设计”为重要控制点的城市景观生态规划之路。  相似文献   

20.
周凤霞 《四川环境》2004,23(6):20-22
城市绿化规划是城市生态规划的基本内容。本文以长沙市雨花区为例,运用景观生态学原理,分析了城市绿地系统建设存在的问题,提出了城市生态绿地系统规划的基本内容和生态对策,可为一些城市的生态建设提供参考依据。  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号