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The article analyses the perceptions at municipal level of potentials and problems in implementing integrated catchment management of water resources as proposed in the EU Water Framework Directive, expressed in views on how to reduce nutrient leakage from agricultural production. Heads of environmental authorities, spatial planners and environmental officers are among the professionals that will be key actors when implementing the WFD at the local level. Using a process of active focus group interviews, officials from municipal environmental offices studied, reflected upon and discussed the suggested plan concerning their part of implementing WFD. The municipal officers stressed certain conditions that have to be met to implement WFD in a sustainable manner. The most important conditions are clear environmental goals and management plans with support in legislation, which would put the necessary pressure upon local politicians to prioritize the WFD and take action. The respondents perceived the WFD would offer a changed approach in work routines with farmers towards partnerships for sustainable water resource management.  相似文献   

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浅谈城市生活垃圾综合处理工程的总体规划设计   总被引:1,自引:0,他引:1  
徐春萍 《四川环境》2003,22(4):71-73
成功的总体规划是保证工程正常运行的前提。本文试图通过工程实例说明在进行环保工程的总体规划时,更应根据生产工艺、物料走向、防火及环境保护等结合厂(场)区的地质和气象等自然条件进行统筹安排,力求做到布置合理,达到建设快、投资省、运行经济安全的目的。  相似文献   

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本文根据我国城镇的特点,将城镇垃圾转运系统分为中心城区和郊镇两个层次,分别对建立转运站布局设置的数学模型进行研究,并结合实例进行了系统论证.  相似文献   

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This paper directs attention to conditions for climate adaptation as an important part of governing climate change in the local arena. Empirical focus is put on attempts to manage flood risks by means of risk management and planning in two Swedish municipalities. Following the need to widen our understanding of how, when and under what conditions climate adaptation occurs, three challenges are particularly emphasized from the case studies: facing the safety vs. scenery conflict where political priorities and reducing societal vulnerabilities prove difficult; the process of deciding what to adapt to, in which the troublesome role of knowledge is striking; and finally, taking responsibility for measures of flood protection. At the end of the paper, analytical generalizations illustrate the need to give increased attention to institutional challenges and challenges emanating from the science–policy interface in order to come to terms with the implementation deficit in governing climate change in the local arena.  相似文献   

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《Local Environment》2007,12(5):457-469
This paper directs attention to conditions for climate adaptation as an important part of governing climate change in the local arena. Empirical focus is put on attempts to manage flood risks by means of risk management and planning in two Swedish municipalities. Following the need to widen our understanding of how, when and under what conditions climate adaptation occurs, three challenges are particularly emphasized from the case studies: facing the safety vs. scenery conflict where political priorities and reducing societal vulnerabilities prove difficult; the process of deciding what to adapt to, in which the troublesome role of knowledge is striking; and finally, taking responsibility for measures of flood protection. At the end of the paper, analytical generalizations illustrate the need to give increased attention to institutional challenges and challenges emanating from the science-policy interface in order to come to terms with the implementation deficit in governing climate change in the local arena.  相似文献   

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Microcomputers are beginning to be used for energy analysis in many developing countries, and have the potential for making a significant contribution to the resolution of difficult analytical and data problems, and to improving communications between analyst and decision-maker. Successful introduction of a microcomputer based on analytical capability, however, requires attention to several important factors in order to avoid the mistakes of the earlier mainframe computer era. This paper reviews the key issues of matching models to staff capabilities, of training, and of the operating environment, based on the author's first-hand experience with microcomputer projects in Uruguay, Haiti and Sri Lanka.  相似文献   

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以长三角16个城市为研究区域,采用标准差、变异系数、赫芬达尔系数、基尼系数等方法,同时借用城市地理学中的首位分布和位序规模分布理论对长三角2002-2010年的医生数进行分析.结果表明,长三角地区医疗资源的绝对差异和相对差异逐步缩小,发展均衡.上海市为该地区医疗资源典型的首位城市,但与区内其他城市相比增速较慢.就时间序列而言,医疗资源分布呈现位序规模分布;就位序变化而言,分为医疗资源平稳发展型和医疗资源徘徊发展型.影响医疗资源分布的因素很多,这些因素会影响医疗资源分布差异的走向.  相似文献   

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The legislation that demands the evaluation of landslide susceptibility in Portugal at the municipal level is the National Ecological Reserve (NER). A methodology for the evaluation of landslide susceptibility to be used in municipal planning is applied in Loures Municipality (169.3?km2) located north of Lisbon (Portugal). A landslide inventory was made for the whole area interpreting orthophoto maps and aerial photographs and using standard geomorphologic techniques in field work. It consists of 686 polygons, each polygon representing a rotational, a deep translational or a shallow translational slide, and is integrated into a GIS database. Landslide susceptibility is evaluated using algorithms based on statistical/probabilistic analysis (Information Value Method) over unique-condition terrain units in a raster basis. Three susceptibility models are elaborated independently according to the type of slide (rotational, deep translational, shallow translational). The landslide susceptibility maps are prepared by sorting all pixels according to the pixel susceptibility value in descending order. The robustness and accuracy of the landslide susceptibility models are evaluated by prediction-rate curves, which are used for the quantitative interpretation of the landslide susceptibility maps. Unstable slopes that have to be included into the National Ecological Reserve are extracted from the three susceptibility maps following the general rules to draw the NER that state that the area to be included in the NER should guarantee the inclusion of at least 70?% of the landslides identified in the landslide inventory. The obtained results allow us to conclude that 70?% of the future landslides should occur in these areas, classified as most susceptible to landslides corresponding to 20.3?% of the total area of Municipality. Thus, the consideration of these 20.3?% as regards prevention and protection of landslide risk could potentially reduce damage resulting from 70?% of future landslides in the Loures Municipality.  相似文献   

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Environmental Management - Groundwater is one of the main resources for social-ecological systems. As part of the total water cycle and deeply connected with land use, groundwater management faces...  相似文献   

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The objective of this study is to assess how local planning can influence the acidity in the upper forest soil layer. Exceedance of soil acidity was determined by a steady-state mass balance model approach in relation to both present and future deposition. Future deposition scenarios were derived for Stockholm County based on transportation planning. Europe-wide scenarios were derived using the RAINS (Regional Air Pollution Information and Simulation) model. The deposition changes were assessed in relation to two different types of forest harvesting practices: whole-tree harvesting; and stem harvesting. The results demonstrate that local emission reductions combined with tree stem harvesting give the greatest remediation of soil acidity. This implies that forest soil acidity can be introduced as an indicator in local environmental planning.  相似文献   

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The speed and direction of air flow through complex terrain are difficult to define. Both impact sensible and latent heat flux exchanges at the surface. Evapotranspiration (ET) models such as Mapping EvapoTranspiration at high Resolution with Internalized Calibration (METRIC?) estimate ET as a residual of the surface energy process and are thus sensitive to aerodynamics, including terrain‐induced impacts on roughness governing convective heat transfer (H). There is a need to explore the sensitivities of H estimation and thereby ET estimation to wind speed and terrain roughness in mountainous areas and to determine the merit of operating complex mesoscale wind field models in conjunction with the energy balance process. A sensitivity analysis is explored in METRIC where we increased wind speed in proportion to a relative elevation parameter and we increased aerodynamic roughness to assimilate impacts of relative terrain roughness, estimated in proportion to standard deviation of elevation within a 3 km locality. These aerodynamic modifications increased convective heat transfer in complex terrain and reduced estimated ET. In other sensitivity runs, we reduced estimated wind speed on estimated leeward slopes. Estimated ET with and without these sensitivity adjustments is shown for mountainous areas of Montana and Nevada. Changes in ET ranged from little change (<5%) for lower slopes to about 30% reductions on windward slopes and 25% increases on leeward slopes for some mid to high elevations in the Montana application.  相似文献   

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In human dominated landscapes, ecosystems are under increasing pressures caused by urbanization and infrastructure development. In Alpine valleys remnant natural areas are increasingly affected by habitat fragmentation and loss. In these contexts, there is a growing risk of local extinction for wildlife populations; hence assessing the consequences on biodiversity of proposed land use changes is extremely important. The article presents a methodology to assess the impacts of land use changes on target species at a local scale. The approach relies on the application of ecological profiles of target species for habitat potential (HP) assessment, using high resolution GIS-data within a multiple level framework. The HP, in this framework, is based on a species-specific assessment of the suitability of a site, as well of surrounding areas. This assessment is performed through spatial rules, structured as sets of queries on landscape objects. We show that by considering spatial dependencies in habitat assessment it is possible to perform better quantification of impacts of local-level land use changes on habitats.  相似文献   

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Summary Schools and higher education institutions in Sweden have developed a wide range of innovative and demanding curricula to meet the objectives of Sweden's environmental policy. Environmental education in compulsory schools is taught principally through biological sciences, although social studies are beginning to occupy a substantial component of the environmental curriculum. Upper secondary schools offer more opportunities to develop environmental awareness, understanding and practical skills than comparable sixth form and post-secondary colleges in England. In Sweden there is a strong emphasis on practical work developed through projects based on contemporary environmental issues and their resolution. The development of environmental education has been well supported by a substantial input of new resources, especially materials developed by the Swedish Environmental Protection Agency and Industry. Universities have also begun to adopt new organisational structures to help develop inter-disciplinary teaching and research teams. Several universities are experimenting with common core courses, parts of which comprise environmental elements.Dr P. Brown is currently Visiting Professor of Environmental Education, in the School of Natural Sciences at the University of Hertfordshire. All five authors were until recetly members of Her Majesty's Education Service Inspectorate.  相似文献   

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从定量的角度出发,设计垢量测量装置。以BZ25-1油田为例,判断油田结垢类型,模拟动态试验,利用油田结垢量大小测定渗透率损失率。随后进行防垢剂筛选试验。结果表明:碳酸钙垢的生成,岩心渗透率损失率21%左右;防垢剂JPS-01、JPS-02、JPS-03能有效缓解地层结垢,JPS-01防垢剂效果最佳,结垢量最小。  相似文献   

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