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1.
构建土地利用规划环境影响评价的指标体系   总被引:25,自引:0,他引:25  
冯春涛 《资源开发与市场》2004,20(6):416-417,420
20世纪90年代中期,土地科学界和生态学界曾提出:"无论将土地作为生产性利用还是非生产性利用,都会形成一种干扰,使生态环境的不确定性增大,从而降低土地利用规划的科学性和合理性".在这一背景条件下,尝试性地按照土地利用类型对其所带来的环境变化影响与效应进行了分析,并在此基础上构建土地利用规划环境影响评价指标体系及可采用的评价方法.  相似文献   

2.
土地利用规划环境影响评价的技术方法   总被引:15,自引:0,他引:15  
评价方法的选择是实现土地利用规划环境影响评价的重点。借鉴项目环评和规划环评的某些方法,根据土地利用规划的层次、类型和阶段的特点,给出一个土地利用规划环评的方法集,并对几种主要方法的适用范围、优缺点进行分析,最后指出方法选择应注意的事项。  相似文献   

3.
Soil erosion is a Europe-wide problem, causing both loss of soil fertility and pollution due to nutrient transport into water bodies. This process is particularly important in the Mediterranean area, where the climate, characterised by long periods of drought followed by intense precipitation, favours soil erosion. Research carried out in this field has amply described this process, showing that climate and land use/land cover (LU/LC) are the two main factors regulating this phenomenon. However, the interaction between these factors is complex and experimental research is needed to understand the nutrient loads deriving from different land uses. This paper shows the results of a long-term monitoring project carried out in the Lake Vico basin (central Italy), using high resolution data and runoff samples to determine the phosphorus (P) export from four different LU/LC classes resulting from the same climatic event. The results highlight the fundamental role that LU/LC plays in terms of phosphorus load. Furthermore, the results appear to indicate that the maximum rainfall registered for 30′ (I 30, max), rather than the total quantity of precipitation, has the greatest effect on levels of erosion, and consequently on the migration of nutrients rather than the total quantity of precipitation can affect on erosion and therefore the migration of nutrients. These data could contribute to scientific planning support for land management choices aimed at controlling water pollution from non-point pollution sources.  相似文献   

4.
Soil erosion is one of the most serious environmental and public health problems, and such land degradation can be effectively mitigated through performing land use transitions across a watershed. Optimal land use management can thus provide a way to reduce soil erosion while achieving the maximum net benefit. However, optimized land use allocation schemes are not always successful since uncertainties pertaining to soil erosion control are not well presented. This study applied an interval-parameter fuzzy two-stage stochastic programming approach to generate optimal land use planning strategies for soil erosion control based on an inexact optimization framework, in which various uncertainties were reflected. The modeling approach can incorporate predefined soil erosion control policies, and address inherent system uncertainties expressed as discrete intervals, fuzzy sets, and probability distributions. The developed model was demonstrated through a case study in the Xiangxi River watershed, China’s Three Gorges Reservoir region. Land use transformations were employed as decision variables, and based on these, the land use change dynamics were yielded for a 15-year planning horizon. Finally, the maximum net economic benefit with an interval value of [1.197, 6.311] × 109 $ was obtained as well as corresponding land use allocations in the three planning periods. Also, the resulting soil erosion amount was found to be decreased and controlled at a tolerable level over the watershed. Thus, results confirm that the developed model is a useful tool for implementing land use management as not only does it allow local decision makers to optimize land use allocation, but can also help to answer how to accomplish land use changes.  相似文献   

5.
土地利用规划战略环境影响评价浅探   总被引:8,自引:0,他引:8  
本文在介绍国内外规划环境影响评价发展概况的基础上,提出了土地利用规划环境影响评价的重要意义。初步探讨了土地利用规划战略环境影响评价的范畴、体系、指标体系与评价方法,并建议应深入开展土地利用规划战略环境影响评价理论研究,健全相关制度,尽快出台相关技术规程。  相似文献   

6.
Local 'Barriers' to Environmentally Sustainable Transport Planning   总被引:1,自引:0,他引:1  
Rapid changes are occurring in the rhetoric and practice of transport planning in the UK. Driven by ever increasing road congestion and growing awareness of the impact of road transport on the environment, a consensus is said to be emerging over the implementation of a new approach to UK transport planning centred on managing the demand for road travel rather than catering for it. This paper explores the depth and breadth of the penetration of this new consensus in relation to policy making in central government and in three local case-study areas. The paper charts the factors that have shifted transport policy direction and are contributing to and inhibiting the adoption of a new demand management approach. It concludes by stating that whilst definitive shifts in transport-planning rhetoric and practice have occurred in recent times, shifts toward demand management have been slow due in particular to local cultural and political difficulties. These persist in many localities and in similar policy areas and an awareness of these is useful in highlighting difficulties in the adoption of environmental sustainability agendas in other policy fields.  相似文献   

7.
Land Use Change and Land Degradation in Southeastern Mediterranean Spain   总被引:1,自引:0,他引:1  
The magnitude of the environmental and social consequences of soil erosion and land degradation in semiarid areas of the Mediterranean region has long been recognized and studied. This paper investigates the interrelationship between land use/cover (LULC) changes and land degradation using remotely sensed and ancillary data for southeastern Spain. The area of study, the Xaló River catchment situated in the north of the Alicante Province, has been subjected to a number of LULC changes during the second half of the 20th century such as agricultural abandonment, forest fires, and tourist development. Aerial photographs dating back to 1956 were used for the delineation of historic LULC types; Landsat ETM+ data were used for the analysis and mapping of current conditions. Two important indicators of land degradation, namely, susceptibility to surface runoff and soil erosion, were estimated for the two dates using easily parametrizable models. The comparison of 1956 to 2000 conditions shows an overall “recuperating” trend over the catchment and increased susceptibility to soil erosion only in 3% of the catchment area. The results also identify potential degradation hot-spots where mitigation measures should be taken to prevent further degradation. The readily implemented methodology, based on modest data requirements demonstrated by this study, is a useful tool for catchment to regional scale land use change and land degradation studies and strategic planning for environmental management.  相似文献   

8.

Rapid changes are occurring in the rhetoric and practice of transport planning in the UK. Driven by ever increasing road congestion and growing awareness of the impact of road transport on the environment, a consensus is said to be emerging over the implementation of a new approach to UK transport planning centred on managing the demand for road travel rather than catering for it. This paper explores the depth and breadth of the penetration of this new consensus in relation to policy making in central government and in three local case-study areas. The paper charts the factors that have shifted transport policy direction and are contributing to and inhibiting the adoption of a new demand management approach. It concludes by stating that whilst definitive shifts in transport-planning rhetoric and practice have occurred in recent times, shifts toward demand management have been slow due in particular to local cultural and political difficulties. These persist in many localities and in similar policy areas and an awareness of these is useful in highlighting difficulties in the adoption of environmental sustainability agendas in other policy fields.  相似文献   

9.
This paper explores the English land use planning system's actual and potential abilities to both facilitate and constrain the advancement of sustainable development through the preparation of statutory development plans. The exploration is empirically based, focusing upon the conceptual and procedural issues most pertinent to the incorporation of sustainable development within this sector of public policy making. The findings reveal a lack of unified coherence in approach amongst local planning authorities as they struggle to translate the rhetoric of sustainable development into practice. One can detect, however, areas of difficulty and potential opportunity surfacing in the plan preparation process relating to issues of public participation, Local Agenda 21, environmental appraisal, data gathering, resources and guidance. There is also an indication that the institutional framework for incorporation lacks the facility to adopt a consistent position with regard to what one can consider as sustainability-orientated application principles.  相似文献   

10.
Just as it is now widely accepted that the planning system has a role to play in achieving sustainable development, so the concept of environmental capacity has achieved increasing prominence as a means of realizing that role. This paper considers the debate on the concept of environmental capacity, reviewing both the mainstream model and Jacobs' more nuanced social constructionist model. In doing so, it raises concerns about the appropriateness of regulatory policy tools and the implications for the distribution of environmental and other impacts. The discussion highlights the potential for using the planning system to promote change rather than resist it. In doing so, it suggests the need to consider a wider range of policy tools to achieve change at the local level and to clarify the dimensions of sustainable development that local planning can contribute to.  相似文献   

11.
以中央在沪企业为例,基于危险化学品内河运输码头的调查,简要介绍了央企环境保护存在属地化管理的问题;通过中央企业环境规划和管理与属地政府环保政策和机制之间关系的分析,分别提出中央企业及属地政府应当采取的措施和建议,包括融入当地安全环保体系,参与属地的安全环境法规和应急预案编程,修改企业的相关安全环境应急预案等央企对策,以及推进危化品现代物流标准化建设,健全安全和环境主动协调机制和实施安全和生态沟通会商机制等政府建议。  相似文献   

12.
This paper is based on research conducted in 1997 and 1998 at the EIA Centre, University of Manchester. It examines the extent to which transport infrastructure related policies, plans and programmes (PPPs) in the three EU regions of North West England, the provincie (administrativeregion) of Noord-Hollandand the engerer Verflechtungsraum (EVR, planning region) of Brandenburg-Berlinconsider (environmental) sustainability issues in the form of objectives, targets and related options/measures for action. Furthermore, the role strategic environmental assessment (SEA) appears to play in this context is elaborated. The analytical framework for comparison is based on the sustainable development strategy of the European Commission, the Fifth Action Programme (Commission of the European Communities, 1993).  相似文献   

13.
随着石油库数量的不断增加和公众环境保护意识的增强,石油库环境污染问题越来越引人关注。正确认识和合理预防、控制油库污染对于实现企业经济、社会以及环境效益的协调发展起着非常重要的作用。文章简要分析了石油库的常规环境污染途径、方式及火灾爆炸事故造成的环境风险,分别从规划、设计和运行三个阶段论述了常规环境污染控制以及事故状态下的风险防控,并提出此项工作应贯穿于规划、设计和运行的全过程中。  相似文献   

14.
Acceptability and personal outcome expectations (i.e., the extent to which one expects to be better or worse off) of transport pricing policies were examined in relation to the expected effects of these policies on one’s own car use, congestion and environmental problems. Car users who commuted frequently by car and experienced congestion on a regular basis evaluated two pricing measures, which were mainly aimed at either decreasing congestion (by tolling at congested areas) or environmental problems (by a differential kilometre charge based on car mass). For the policy mainly aimed to reduce congestion, acceptability was higher and personal outcome expectations were more positive when respondents expected reductions in congestion when the policy was implemented. The policy aimed to reduce environmental problems was more acceptable and respondents expected to be better off in general when they expected reductions in environmental problems after its implementation. Expectations, both about a decrease in congestion and environmental problems were related to respondents’ personal outcome expectations of the policy mainly aimed to decrease environmental problems. We conclude that the acceptability of transport pricing policies are not necessarily low because car users expect negative effects on their car use, but rather because they are not be convinced that transport pricing policies will reduce congestion and environmental problems.  相似文献   

15.
Total annual nutrient loads are a function of both watershed characteristics and the magnitude of nutrient mobilizing events. We investigated linkages among land cover, discharge and total phosphorus (TP) concentrations, and loads in 25 Kansas streams. Stream monitoring locations were selected from the Kansas Department of Health and Environment stream chemistry long-term monitoring network sites at or near U.S. Geological Survey stream gauges. We linked each sample with concurrent discharge data to improve our ability to estimate TP concentrations and loads across the full range of possible flow conditions. Median TP concentration was strongly linked (R 2 = 76%) to the presence of cropland in the riparian zones of the mostly perennial streams. At baseflow, discharge data did not improve prediction of TP, but at high flows discharge was strongly linked to concentration (a threshold response occurred). Our data suggest that on average 88% of the total load occurred during the 10% of the time with the greatest discharge. Modeled reductions in peak discharges, representing increased hydrologic retention, predicted greater decreases in total annual loads than reductions of ambient concentrations because high discharge and elevated phosphorus concentrations had multiplicative effects. No measure of land use provided significant predictive power for concentrations when discharge was elevated or for concentration rise rates under increasing discharge. These results suggest that reductions of baseflow concentrations of TP in streams without wastewater dischargers may be managed by reductions of cropland uses in the riparian corridor. Additional measures may be needed to manage TP annual loads, due to the large percentage of the TP load occurring during a few high-flow events each year.  相似文献   

16.
The second round of the Local Transport Plan (LTP2) process in England presents unique challenges and opportunities for integrating Local Air Quality Management (LAQM) within current transport planning policy. Using content analysis of LTP2 documents from nine English authorities, and results from a questionnaire survey of local government officers undertaken in late 2007, this paper charts the changes in the integration of air quality management within the transport planning process since 1997. While substantial improvements in policy integration were observed within the selected case studies, the paper demonstrates that such improvements are often constrained by institutional complexities that create implementation gaps between national objectives and local decision-making outcomes.  相似文献   

17.
Sediment budgets describe the production, transport, deposition and export of sediment in a catchment, and thus provide information useful for planning soil conservation, restoration and monitoring programmes and for evaluating existing and future environmental impacts. Five examples from New Zealand illustrate a variety of sediment budgeting approaches and their use in achieving goals relevant to land-use planning and management. Appropriate sediment budgeting strategies can be selected for a particular application only through careful consideration of the kinds of decisions that will follow from budgeting results. Sediment budget projects can be designed to incorporate the close co-operation between technical experts and clients that results in the most useful sediment budgets.  相似文献   

18.
北京市城乡交错带土地利用调控对策   总被引:2,自引:1,他引:2  
城乡交错带是城市扩展和农村发展的前沿,也是统筹城乡关系的重点地区.选择北京市城乡交错带为研究区域,以调查统计、变更调查和实地调查资料为基础,采用统计分析和综合的方法,认为北京市城乡交错带20世纪80年代以来土地利用变化具有以城市发展为主、国家建设占用和点轴面的外延扩展方式的特点,从而导致交错带的生态屏障功能日益受到蚕食,合理的用地功能布局和用地效益受到影响.建议采取加强城乡一体化编制土地利用总体规划、调整结构和优化布局等调控措施.  相似文献   

19.
An Environmental Management System (EMS) has been widely in use by many companies to manage the environmental effects of their operations. The process has recently gained ground in being adopted at city and municipal levels as well as in institutions such as universities. However, an EMS that is conducted at corporate level has some deficiencies when it is applied at city level. These deficiencies are in evaluating environmental goals and policies carried out to mainly ensure that the policies meet ISO 14001 standard and corporate requirements and neglect of public participation. Urban areas differ from companies due to their size, complexity and environmental challenges, high rate of growth and the dynamic nature of urban systems. Therefore, they need an urban environmental management approach that will assess the formulated urban environment policies and goals in a strategic method before implementation, including social dimensions such as public participation. Therefore, this paper proposes a modified approach to incorporate an EMS, called the Sustainable Urban Environmental Management Approach (SUEMA). The approach recognizes the above-mentioned deficiencies and benefits from the advantages of sustainability and Strategic Environmental Assessment (SEA) in the formulation and evaluation of policies, plans and programs. SUEMA is developed to ensure more sustainable urban environmental planning and development.  相似文献   

20.
An understanding of groundwater vulnerability in urban watersheds is important for the prevention of both surface water and groundwater contamination and can therefore be a useful tool in brownfield redevelopment and land use planning. Although industrial activity in southeastern Michigan has historically been restricted to the urbanized sections of metropolitan Detroit, new industrial development is rapidly taking place in rural and undeveloped areas. Although environmentalists and urban planners agree that industrial site recycling in urban centres (a.k.a. brownfield redevelopment) is preferable to developing green areas, many older sites remain undeveloped due to real and perceived risks. Using a PC-based geographic information system, a conceptual model of solute transport in soil was developed to evaluate potential impacts to both groundwater and surface water quality resulting from industrial development. The model was used to create a map of groundwater vulnerability within the Rouge River watershed of southeastern Michigan. The map has been used to pin-point several rural and undeveloped areas where groundwater quality is threatened by proposed development. It has also clearly demonstrated that many older brownfield sites, within the City of Detroit, are located on materials that have a much lower vulnerability to groundwater contamination and may therefore be far less costly to redevelop than greenfield sites in undeveloped areas of the watershed.  相似文献   

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