共查询到20条相似文献，搜索用时 406 毫秒
1.
A. P. Marchant V. J. Banks K. Royse S. P. Quigley G. P. Wealthall 《Environmental Earth Sciences》2011,64(2):483-495
Groundwater is the primary source of potable water in southeast England. Its protection in urban environments is of paramount
importance. Following a scoping study the British Geological Survey (BGS) established a project to develop an initial screening
tool (IST) to assist the planning community in the assessment of the potential risk to ground and surface waters from contaminants
mobilised as a consequence of redevelopment. The tool has been designed in the context of the source-pathway-receptor paradigm
that informs Part IIa of the UK Environmental Protection Act (1990). Building on the work of previous screening tools and
in particular ConSEPT, a BGS contaminated site evaluation and prioritisation tool, the IST incorporates significant refinements
to scoring methodologies and takes the prioritisation approach into the 3-D environment. Implemented as a customised GIS application
and utilising surfaces extracted from 3-D geological modelling, the tool collates and interrogates a range of geoscientific
information, including contaminant scale, geological, historic land use, groundwater level and hydrogeological domain data.
The IST facilitates the ranking of various proposed development scenarios through a semi-quantitative assessment of contamination
potential, via a number of pollutant linkages, providing planners with reports on the type, spatial distribution and hazards
associated with potential contaminant sources within their area. To achieve this, a range of evaluation factors applied to
the sources, pathways and receptors are scored through a combination of spatial and attribute queries, then assessed on the
basis of potential linkages. The initial research area selected for the application of the IST was the Olympic Park site,
London. 相似文献
2.
Land use change scenarios and associated groundwater impacts in a protected peri-urban area 总被引：1，自引：1，他引：0
Land use changes in peri-urban areas are usually associated with significant impacts on groundwater resources due to alteration
of the recharge regime as well as through the establishment of pollution sources. Quantifying the aforementioned impacts and
assessing the vulnerability of the groundwater resources is an important step for the better management and protection of
the aquifers. In the present study, a physically based, distributed hydrologic model has been used to identify the impacts
from specific land use change scenarios in the protected area of Loutraki catchment. A vulnerability assessment method has
been also implemented to provide a decision support tool to the land planning authorities and also hydrologic mitigation measures
for the sustainable development of the area have been proposed. The hydrologic impacts of the land use scenarios include a
5% reduction in the annual recharge of the study aquifer for scenario 1 (doubling of the current urban areas) and 7% decrease
for scenario 2 (tripling of the current urban areas). Nevertheless, these impacts can be minimised if small-scale artificial
recharge infrastructure is developed and the land planning measures suggested through the vulnerability and recharge maps
will be followed. 相似文献
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5.
S. Perveen T. Yigitcanlar Md. Kamruzzaman J. Hayes 《International Journal of Environmental Science and Technology》2017,14(3):663-678
Urban growth is an important phenomenon, which is taking place on an unprecedented scale, and its impacts on society and the environment are evident. In theory, an evaluation of such urban growth through scenario-based planning helps planners to better assess the future impacts of growth and develop better policies and plans. Within this context, the assessment of transport impacts is particularly important as transport plays an important role in shaping urban growth. Additionally, transport sector alone is responsible for about one-third of the greenhouse gas emissions of cities, which has detrimental effects on the environment, economy, community health, and quality of life. In practice, however, scarce evidence exists outlining the challenges of scenario-based evaluation and how to best address these while modelling the transport impacts of various urban growth scenarios. This research addresses these gaps in the literature and assesses the effectiveness of scenario-based planning methods that are used for modelling the transport impacts of alternative urban growth scenarios. The methodological approach of the study consists of a critical review of the key literature and relevant methods that are commonly used to assess transport impacts. The results of this analysis highlight limitations of existing methods for effectively evaluating transport externalities of urban growth scenarios. The findings suggest that among many reviewed models, the ILUTE, URBANSIM and TRANUS simulation models are identified as significant ones. However, due to various limitations of the former two, TRANUS is noted as the most suitable one for evaluating the transport impacts of urban growth scenarios. 相似文献
6.
2014年7月2日下午,上海市地质调查研究院副总工程师李勤奋教授、上海市地质调查研究院总工程师办公室副主任兼《上海国土资源》编辑部主任龚士良教授专程赴北京拜访了中国社会科学院农村发展研究所宏观经济研究室主任党国英研究员,并代表《上海国土资源》期刊作了专题访谈。党主任深刻剖析了中国现有土地制度存在的不足,指出土地制度的改革应以土地要素的市场化为导向,体现效率、平等、稳定和可持续,统一城乡建设用地市场。现有的国家土地规划管理体制存在弊端,应简政放权,详规下沉到最基层;要坚持以人为本,切实降低公共空间的占地面积,努力提高公民的居住空间与生活品质。 相似文献
7.
A strong need exists to increase the knowledge and recognize the values of neighborhood services. This paper makes an attempt to examine the impact of neighborhood services on land values, through analysis based on results obtained from multi linear regression analysis. This case study was done in area of dense urban settlement to check the consequence of neighborhood services through the hedonic pricing model base variables which include the structural, locational, community and neighborhood services. The regression coefficient was checked at (p?<?0.05) level of significance for each variable. The primary data was collect through the questionnaire filling by random sampling and Punjab Urban Gazette was used for the verification of land values in study area. The results found a valuable potential on land and property values of neighborhood services through the regression analysis results express through R (0.926), R2 (0.856) and coefficient tables to represent the effect of each individual variable on property and land values. Every individual variable play role in defining the values of land and property based upon its utilization such as larger the structure of a property, more the covered area, larger size of a property more the land area higher price. Similarly, for locational factor study in geography, a piece of land adjacent to the road have high land values 50–70% compare to those located at distance. Very less attention has been paid on such issues in the world due to lack of effective urban planning and research on such crucial issues. If empirical studies on such issue has been done, effective way can be obtained for urban planning.
相似文献8.
地下空间规划是城市地下空间开发利用有序开展的重要保障。随着我国轨道交通建设的全面展开以及相关政策的陆续出台,我国城市地下空间开发利用必将迎来更大的发展。城市地下空间规划也在近年越来越得到重视。从目前各城市的地下空间规划实践来看,我国城市地下空间规划的技术体系已基本成型,但其中仍然存在着各种各样的问题。在摸清我国城市地下空间规划编制现状和实施效果的基础上,掌握我国城市地下空间规划所面临的问题,并结合未来地下空间发展趋势提出我国城市地下空间规划解决问题的对策,有助于城市地下空间规划理论和方法进一步完善,更好地保障我国城市地下空间事业的可持续发展。 相似文献
9.
European politics and planning have recently been characterized by a shift to economic entrepreneurialism at sub-national scales, and the planned redevelopment of the city-region in pursuit of global competitiveness, which scholars have interpreted in light of political-economic “rescaling” or regionalization and the emergence of a “new regionalism.” Analyzing rescaling largely in terms of shifting economic and institutional structures, however, many accounts underestimate the complexity and enduring power of so-called ‘old’ regionalist politics of culture and identity as backdrop to urban redevelopment planning. In this paper we address how the urban planning process mediates between the seemingly dichotomous tendencies of regionalized entrepreneurialism and cultural regionalism. Using case studies of two Spanish autonomous regions and their major urban centers – the Basque Country or Euskadi (Bilbao) and the Comunitat Valenciana (València) – we review the historical geography of planning in the European region in order to explore how cultural regionalism collides with economic rescaling and entrepreneurialism, in and through the planned landscape. We propose that such emerging and hybrid politics and planning be understood as a form of entrepreneurial regionalism, a culturally inflected form of economic competitiveness characteristic of but not unique to the Spanish region. This specific notion of entrepreneurial regionalism may illuminate how planners mediate global and local imperatives within political discourse and landscapes that materialize them, and allow us to better reconceptualize the relationship between economic globalization, state restructuring, and cultural politics in a new Europe of the Regions. 相似文献
10.
European politics and planning have recently been characterized by a shift to economic entrepreneurialism at sub-national scales, and the planned redevelopment of the city-region in pursuit of global competitiveness, which scholars have interpreted in light of political-economic “rescaling” or regionalization and the emergence of a “new regionalism.” Analyzing rescaling largely in terms of shifting economic and institutional structures, however, many accounts underestimate the complexity and enduring power of so-called ‘old’ regionalist politics of culture and identity as backdrop to urban redevelopment planning. In this paper we address how the urban planning process mediates between the seemingly dichotomous tendencies of regionalized entrepreneurialism and cultural regionalism. Using case studies of two Spanish autonomous regions and their major urban centers – the Basque Country or Euskadi (Bilbao) and the Comunitat Valenciana (València) – we review the historical geography of planning in the European region in order to explore how cultural regionalism collides with economic rescaling and entrepreneurialism, in and through the planned landscape. We propose that such emerging and hybrid politics and planning be understood as a form of entrepreneurial regionalism, a culturally inflected form of economic competitiveness characteristic of but not unique to the Spanish region. This specific notion of entrepreneurial regionalism may illuminate how planners mediate global and local imperatives within political discourse and landscapes that materialize them, and allow us to better reconceptualize the relationship between economic globalization, state restructuring, and cultural politics in a new Europe of the Regions. 相似文献
11.
土地储备规划是土地利用总体规划的重要组成,是为城市建设发展服务和指导土地供应计划的重要实施性专项规划,将在引领城市发展、规范土地市场运作、提升土地调控能力等方面发挥重要作用。通过分析土地储备规划的定位,确定土地储备规划的范畴和目标,探索土地储备规划编制的基本方法;结合城市土地储备机构工作特点,构建土地储备规划管理的动态机制。 相似文献
12.
Hanna Elisabeth Elg?ker 《GeoJournal》2012,77(5):591-613
The equine sector is increasingly influencing land use, especially in peri-urban areas where the demand for land is already high. The sector not only influences traditional farming and land use, but also social, legal and economic development, and thus demands new interpretations of rural and urban. However, there is currently a lack of information on the consequences of this sector at landscape, social and economic level. This study examines the influence of the equine sector on the development of multifunctional land use in peri-urban areas, using data and examples from Sweden. It also examines specific features of the associated growing area of research and the positioning of the issue within the broader context of land use and planning. The methods used were a case study of a municipality, together with interviews and analyses of statistical material at regional level in the context of multifunctional land use, planning and sustainable development. It was found that the structure of the equine sector varies at both national and local level due to local conditions, but that there are also common features that need to be further studied using a broad interdisciplinary starting point. 相似文献
13.
城市地质环境评价是城市规划和场地选址的基础 .以兰州市为例 ,以地理信息系统软件ARC/INFO为开发平台 ,建立了城市地质环境基础数据库 ,将城市用地类型分为高层建筑用地、多层建筑用地、低层建筑用地、垃圾填埋用地及自然保护用地 ,系统分析了各类用地与地质环境协调性评价的指标体系 ,采用层次分析法建立了评价模型 ,对不同的用地类型进行了评价 .结果表明GIS与评价模型的结合可以快捷、准确地进行城市建设用地与地质环境的协调性评价 相似文献
14.
Recent mass movements in the Kocaeli Province, Turkey in 2010 caused damage to people, property and infrastructure, especially in Izmit and its vicinity. The causes and impact of these mass movements are outlined, so as to increase awareness of their dangerous aspects. Some of these mass movement events took place in urban areas, bringing attention to the need for better and more effective land use practices. The impact of these movements indicates the benefit there would be from geology and engineering geology in the planning of any property development and land use. 相似文献
15.
针对上海市规划和国土资源信息化建设中存在的问题,从信息系统规划建设、设计理念、系统开发等方面进行了深层次分析,提出了规划和国土资源信息化工作的目标与定位,强调要加强规划国土资源信息化的顶层设计,以信息化带动管理精细化,加快政府职能转变,建设服务型政府。在此基础上,从统一数据底板建设、管理业务架构梳理和再造、管理总体框架设计和实施等方面提出了推进上海规划和国土资源信息化建设的具体措施。 相似文献
16.
在城区化过程中,由于人口快速成长且集中,随之而来的建筑物、道路等不透水面密度增加,导致地下水补给减少及破坏水文循环。为了解土地利用方式改变对长期水文量影响,建立一个适宜的城区水循环模式是非常重要的。选定台湾台北的六馆抽水站集水区进行分析,模式参数经过敏感度分析、率定与验证。采用改变不同透水铺面设置比例的方案,评估其对径流量、入渗量、蒸发散量的改变。并分析设置不同比例屋顶雨水贮集系统对地表径流量及供水量的改变。所建立的城区水循环模式是评估土地利用改变造成水文量的改变的一个有效工具,并可提供决策者做为城区土地利用决策的参考。 相似文献
17.
Hazardous industrial sites have always represented a threat for the community often provoking major accidents overcoming the
boundaries of the plants and affecting the surrounding urban areas. If the industrial sites are located in natural hazard-prone
areas, technological accidents may be triggered by natural events, generating so-called na-tech events which may modify and
increase the impact and the overall damage in the areas around them. Nevertheless, natural and technological hazards are still
treated as two separate issues, and up to now the methods for na-tech risk assessment have been developed mainly for specific
natural hazards, generally restricted to some plant typologies and to the area of the plant itself. Based on a review of the
current na-tech literature, this article illustrates a risk assessment method as a supporting tool for land use planning strategies
aimed at reducing na-tech risk in urban areas. More specifically, a multi attribute decision-making method, combined with
fuzzy techniques, has been developed. The method allows planners to take into account, according to different territorial
units, all the individual na-tech risk factors, measured through both quantitative and qualitative parameters, while providing
them with a na-tech risk index, useful to rank the territorial units and to single out the priority intervention areas. The
method is designed to process information generally available about hazardous plants (safety reports), natural hazards (hazard
maps) and features of urban systems mainly influencing their exposure and vulnerability to na-tech events (common statistical
territorial data). Furthermore, the method implemented into a GIS framework should easily provide planners with comparable
maps to figure out the hazard factors and the main territorial features influencing the exposure and vulnerability of urban
systems to na-tech events. The method has been tested on a middle-sized Municipality in the Campania Region, identified as
2nd class seismic zone, according to the Ordinance 3274/2003, in which a LPG storage plant, classified as a plant with major
accident potential by the Seveso II Directive (art. 9), is located just within the city core. 相似文献
18.
城区土地级别和基准地价是城市土地利用情况的反映,它客观地揭示了城区内不同区段土地使用价值及变化规律,是政府宏观调控土地市场、科学合理配置土地资产的有效手段。随着枣庄市市中区经济建设发展和城市规划的实施,城市基础设施不断完善,带动了城市房地产市场健康发展和土地使用权价格稳定上涨。该文通过对枣庄市市中区新一轮基准地价更新成果的详细分析,探讨了基准地价更新成果在城市经济发展中的应用。 相似文献
19.
Economic reforms and the New Master Plan of Ho Chi Minh City, Vietnam: Implementation issues and policy recommendations 总被引：1，自引：0，他引：1
The economic reforms or `doi moi' introduced in 1986 have transformed Vietnam's planned economy to a more market-oriented
one. Rise in international capital, market liberalisation and greater population mobility have contributed towards a greater
concentration of squatters in the city centre, and extended metropolitan development in the fringes of Ho Chi Minh City. Rapid
urbanisation and, to a lesser extent, industrialisation have converted large tracts of farmlands to urban use, and greater
rural exodus. Such dramatic changes have drawn the city government's attention to face the new challenges. As a very important
political and economic centre in the south, Ho Chi Minh City has prepared for itself a new Master Plan, approved in 1997,
to provide a legitimate and institutional framework to guide its future spatial development.
This paper introduces the background and explains the rationale behind the drafting of the Master Plan, and highlights the
constraints that are expected in implementing it. The administrative framework in planning is also examined in terms of its
advantages and disadvantages in a planning system with four levels: national, provincial, district and local. Land availability
in the city centre, source of funding and technical expertise are all parts and parcels of the challenges in the process of
modernising HCMC to accommodate the need of its residents and rapid global change. Ho Chi Minh City's strong relationships
with its hinterlands have equally required the planners to look at the planning field using the whole national and regional
scenarios. Policy recommendations aimed at improving the implementation capability are finally presented.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
20.
《Geoforum》2017
While the concept of urban agriculture investigates the way in which disused land within the consolidated city is returned to its citizens through a variety of farming practices, many pockets of rural land in peri-urban areas continue to be contested by institutions and communities – including informal farmers, formal farmers, municipal planners, metropolitan agencies, and investors – with contrasting interests. To date however, little scholarly attention has been paid to informal practices within the degraded areas of urban fringes and, more specifically, to the link between the expansion of peri-urban agriculture and the civic appropriation and negotiation of space in neglected peripheral areas. In this paper, we ask how a metropolitan sustainability fix is produced and contested both materially and discursively. We also explore how local residents involved in peri-urban agriculture claim the use of land for agricultural practices and in turn attempt to influence the urban agenda of the neoliberal city. Inquiring how competing visions of nature act as obstacles in this negotiation process, our analysis of the peri-urban Baix Llobregat Agricultural Park in Barcelona reveals that the imposition of official visions about how needs for food and agriculture should be fulfilled, which landscapes are esthetically acceptable, what nature is, and how land should be controlled and developed indicate why apparently “marginal” and informal urban agriculture in the periphery has come to be subordinated to the planning of the neoliberal city and of a metropolitan sustainability fix – a partial sustainability fix that is however progressively being questioned and renegotiated. 相似文献