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1.
本文以碳酸盐体系为基础提出适于区域环境水体酸化敏感性多指标评价模型,利用该模型结合各评价指标的标准化体系可进行大尺度范围水体酸化敏感性评价。  相似文献   

2.
生态环境健康评价包括生态环境健康风险评估和环境治理有效性的评价,是监测生态环境质量对公众健康的潜在风险和指导决策的重要技术手段。我国至今尚未形成全面有效的生态环境健康评价体系,且在评价某一区域生态环境质量对公众健康的影响时,往往忽略了生态法治的作用。为此,本文基于驱动力—压力—环境条件—健康影响—行动(DPEHA)模型构建了一套具有生态法治特色的生态环境健康评价指标体系,并以深圳市2019年和2020年生态环境健康工作为例,对模型进行验证,以推进深圳生态环境健康保护法治化建设。未来研究要将评价体系应用至不同城市,以深入推进法治中国建设。  相似文献   

3.
生态城市指标体系的设计及应用研究   总被引:3,自引:0,他引:3  
王娟  陆雍森  汪毅 《四川环境》2004,23(6):7-11
本文在对国内外生态城市理论研究及实践的基础上根据对生态城市内涵的理解,提出生态城市指标体系设计的理论依据,以保证人类发展系统和自然生态系统的发展与和谐为出发点。提出了生态城市指标体系的框架,将生态城市的可持续性从两大系统加以体现。同时针对本套指标体系设计了二维评价体系.从可持续发展度和可持续发展协调度两个方面对生态城市的可持续发展状态进行评价。最后以常熟市为案例,对本套指标体系和评价方法体系的实用性作了验证和分析。  相似文献   

4.
多目标灰色关联度决策模型分析   总被引:1,自引:0,他引:1  
本文针对多目标决策的复杂性,运用灰色系统分析方法和物元分析理论,建立了决策方案的评价体系并对评价指标进行规范化处理。以决策方案的灰色关联度作为评判准则,建立了一种目标灰色关联度决策模型。  相似文献   

5.
火电厂烟气脱硫技术综合评价专家系统权重的确定   总被引:1,自引:0,他引:1  
在火电厂烟气脱硫技术综合评价专家系统评价体系中,指标权重的确定是建立整个专家系统的重点和难点。在建立的火电厂烟气脱硫技术综合评价体系的基础上,利用APH法确定了火电厂烟气脱硫技术综合评价专家系统中各层次指标的权重。为火电厂烟气脱硫技术综合评价专家系统的建立奠定了基础。  相似文献   

6.
公共服务评价系统是智慧旅游公共服务体系的重要构件,对其进行客观有效的评价对顺利建设智慧旅游公共服务体系起着重要的指导意义.从“智慧”的视角,运用安全关键系统构建理论分析了旅游公共服务供给模式,并结合地方实践,提出了适合于四川省的智慧旅游公共服务体系;运用层次分析方法,选取42项指标,对所建立的智慧旅游公共服务体系进行了定量和定性分析,确定各级指标的权重,建立了一套智慧旅游公共服务的评价指标体系,为智慧旅游公共服务体系的建设和有关公共服务评价指标的设立提供参考.  相似文献   

7.
低碳理念在工业园区规划环评中的应用   总被引:2,自引:0,他引:2  
工业园区是温室气体排放的重要源头之一,工业园区规划环评应在规划的基础上,探讨如何在评价过程中通过制定合理的对策措施,促进园区低碳发展。本文分析了低碳发展理念纳入工业园区规划环评的工作重点,建议规划环评完善评价内容,在原有评价体系中融入园区温室气体排放特征、设定低碳发展评价指标、优化设计能源结构、构建低碳产业体系、低碳发展替代方案以及碳排放跟踪评价等内容,以达到规划环评指导工业园区按低碳路径发展的目的。  相似文献   

8.
我国城市生态评价研究进展   总被引:2,自引:0,他引:2  
张翔  余红英  万鹏  杨渺 《四川环境》2009,28(3):89-93
城市建设带来了越来越多的生态环境问题,生态城市建设是解决这些问题的良好途径。生态城市的建设要有一定的评价体系作为支撑,本文综述了国内基于AHP方法建立的应用较为广泛的城市生态评价体系和方法,并对国内城市生态评价的现状做了分析。  相似文献   

9.
工业园区是温室气体排放的重要源头之一,工业园区规划环评应在规划的基础上,探讨如何在评价过程中通过制定合理的对策措施,促进园区低碳发展。本文分析了低碳发展理念纳入工业园区规划环评的工作重点,建议规划环评完善评价内容,在原有评价体系中融入园区温室气体排放特征、设定低碳发展评价指标、优化设计能源结构、构建低碳产业体系、低碳发展替代方案以及碳排放跟踪评价等内容,以达到规划环评指导工业园区按低碳路径发展的目的。  相似文献   

10.
本文简要评述了水利工程对环境与生态影响的评价方法,用系统工程的观点和方法建立了三峡工程对生态与环境影响的综合评价体系,它包括环境要素层次结构体系的建立:环境受影响程度等级的划分和评价标准;以及综合评价的多级线性加权数学模型和多级模糊数学模型。文中还给出了确定权值分配的具体方法。  相似文献   

11.
Lighting and discomfort in the classroom   总被引:1,自引:0,他引:1  
Aspects of classroom lighting and décor that can promote discomfort and impair task performance through glare, and imperceptible 100 Hz flicker from fluorescent lighting, were examined in a sample of UK schools. In 90 classrooms, across eleven secondary schools and six local education authorities variables measured included flicker, illuminance at desks, and luminance of whiteboards. Results showed that 80% of classrooms are lit with 100 Hz fluorescent lighting that can cause headaches and impair visual performance. Mean illuminance (from excessive day- and artificial lighting) was in excess of recommended design illuminance in 88% of classrooms, and in 84% exceeded levels beyond which visual comfort decreases. Lighting could not be adequately controlled due to classroom design and infrastructure. Ceiling-mounted data-projectors directed at whiteboards mounted vertically on the wall resulted in specular reflection from the whiteboard, visible as a glare spot with luminance high enough to cause discomfort and disability glare. The intensity of the glare spot varied between different brands of whiteboard. Ambient lighting, needed for close work at pupils' desks, reduced image contrast. Venetian blinds in 23% of classrooms had spatial characteristics appropriate for inducing pattern glare. There was significant variation between schools and local authorities. These findings may provide insights into small-scale reports linking pupils' attainment, behaviour and learning to classroom lighting, and may also help explain some of the benefits of coloured overlays for pupils' reading.  相似文献   

12.
The cost-effectiveness of rapid assessment approaches make their adaptation for use in developing countries appealing, but biological assessment methods need to be validated before use in new geographic areas. The authors tested the suitability of a family-level biotic index for use in a river in west-central Mexico that receives organic point-source pollution from untreated municipal sewage and sugar-cane processing. The biotic index was highly correlated to dissolved oxygen, and could detect different levels of pollution. Information from rapid assessment biomonitoring was used successfully by local natural resource managers to help bring about improvements in water resource management.  相似文献   

13.
The status of combined heavy metal and organo-chlorine pesticide (OCPs; i.e. HCH and DDT) pollution was investigated and the soil environmental quality of the Taihu Lake watershed, one of the most developed regions in China, was evaluated using a fuzzy comprehensive assessment. Statistical analyses showed the presence of combined pollution in the soil. At many sampling sites, heavy metal concentrations were above corresponding background values, indicating the effects of extraneous pollutants. It has been over 20 years since China banned the use of OCPs, but they can still be found in soil samples of this region. HCH levels at all investigated sites were below the Chinese Environmental Quality Standard for Soils. Fuzzy comprehensive assessment showed that the overall soil quality in this region could be categorized as class I. Nevertheless, the high coefficients of variation for levels of DDT, Cd and Hg indicated the existence of some point-source pollution. Continuous monitoring and further studies of the region are recommended to prevent pollution of farmland from these sources.  相似文献   

14.
排污费改革为环境税是环境保护领域的重大课题,环境税开征必须充分协调好与环境保护制度之间的关系。为协调与环境污染总量控制等环境行政管控制度的关系,应注重加强环境税的合作征管和联合执法,为行政管控提供较为顺畅的信息机制。为协调与排污权交易等环境经济制度的关系,应加强成本效益分析,妥善分配部门间权力与利益,并根据经济社会发展情况处理好地区发展和结构性配置等问题。  相似文献   

15.
Although groundwater is widely and increasingly exploited for potable water-supply in developing countries the threat of groundwater pollution has, as yet, received little attention. Activities currently producing the principal risks are described in some detail. A basis for rapid assessment of the degree of groundwater pollution risk is proposed, based on the evaluation of, and the interaction between, pollutant loading and aquifer vulnerability. Protection zones around individual groundwater supply sources can generally play, at most, only a minor role in overall policy. The strategy proposed is aquifer-oriented and activity-related. The evaluation of aquifer pollution vulnerability, made in the rapid risk assessment and based on three semi-independent criteria, could be used to select the required protection measures in relation to specific land-use activities.  相似文献   

16.
绿色GDP核算--以海南省2004年度为例   总被引:1,自引:0,他引:1  
绿色GDP核算体系的一个重要组成部分就是环境经济核算,主要核算国民经济活动对环境的影响,包括环境污染和生态破坏两个方面.从实物量与价值量两个层面对海南省环境污染进行核算,从而得到2004年海南省经环境污染调整的绿色GDP值为760.88亿元,绿色GDP指数为98.9%.  相似文献   

17.
多管发酵法与其改进法检测水中粪大肠菌群的比较   总被引:1,自引:0,他引:1  
粪大肠菌群是水体中粪便污染的重要指示菌,对于评价水质污染程度具有重要的卫生学意义。多管发酵法是传统的粪大肠菌群检测方法,但其步骤繁杂、周期长。目前,已有部分监测及科研人员对其进行了改进,笔者采用改进法与国标多管发酵法进行比较验证,认为Ec培养法可完全替代国标多管发酵法,纸片法亦可用于除酸性水样及菌量大的原污水外的其他环境水样中粪大肠菌群的检测。  相似文献   

18.
For the past 20 years, the European context has been policy-driven by several directives to reduce pollution, one of the most important for industries being the industrial emissions directive (IED). The IED's objective is to minimise pollution from various industrial sources throughout the European Union. One means of attaining the objective is to implement techniques which have at least the same performance as reference techniques called best available techniques (BAT) given at European level. The study of existing methodologies on performance assessment of proven or emerging techniques has made it apparent that there are none taking into account the 12 criteria proposed by the Annex III of the IED to evaluate technique performances. Even if innovative techniques are not considered by the IED, support to (public or private) researchers in their development in terms of assessment methodology must be proposed. This is what we present in this article.The methodology based on a tree-structured information system (objectives, criteria, indicators) and a qualitative assessment of indicators (environmental, technical, economic and social) is an initial approach to an innovative technique assessment method considering BAT on laboratory or industrial scales. In an aim to adapt the criteria and indicators to a specific process, assessment methodologies must be adaptable. Our method allows for choosing indicators to comply perfectly with the process studied. Only the first level of the tree is fixed. The other branches could be adapted to the case studied. Performance assessment is based on a five-level scale coupled with a simple multi-criteria analysis (MCA) method. Three different applications (sludge valorisation, urban wastewater treatment, soil remediation) were carried out to validate the methodology, two of them are presented. Applications of this methodology show its usefulness in the validation of techniques for specific process and local application of the BAT concept and the performance assessment regarding BAT definition. It can then be used to detect innovative and emerging techniques to be proposed for the reviewing of the European BREF documents.  相似文献   

19.
针对排污企业在线自动监控系统管理存在主体责任履行不到位,第三方运维企业人员流动性大且技术素质参差不齐等问题,对照污染源自动监控系统相关法律法规和标准,结合多年的污染源自动监控系统监督核查管理经验,提出排污企业应尽量安装同一品牌同一型号的自动监控设施、建立针对第三方的监督考核机制,运维企业应制定长期有效的管理机制、建立自动监控设施运行动态管理台账等建议,以提升企业自动监控系统管理水平,确保自动监控数据真实、合法、有效,为企业生态环境管理决策提供有力支持。  相似文献   

20.
土壤污染风险评价研究进展   总被引:3,自引:0,他引:3       下载免费PDF全文
随着工业化和城镇化快速发展,土壤污染带来的人体健康和生态风险日益凸显.本文针对我国土壤污染环境风险评价体系在风险管控中的缺失问题,系统总结了国内外土壤污染的风险研究发展成果,按照土壤污染的人体健康风险和生态风险,分别进行评价方法、评价标准和管理实践的总结与评述.文章着重指出:土壤污染风险评价在生态系统水平及区域流域尺度上缺失,评价方法未能与污染物存在形态完全匹配,评价指标还不能覆盖大部分重金属和有机物,健康风险与生态风险还没有实现综合评价.  相似文献   

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