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191.
Jari Lyytimäki 《Natural resources forum》2012,36(2):101-108
Indicators are commonly used as tools to identify and highlight socio‐economic and ecological trends and to assess progress towards sustainability. Different quality criteria can be considered for indicators. This paper focuses on the timeliness of indicators used in the evaluation of sustainable development strategies. The analysis is based on indicators included in four assessment reports of the sustainable development strategy of the European Union and three assessment reports of the national strategy of Finland. Furthermore, a web‐based national level indicator portal is analysed. The results show that the timeliness of indicators has generally not improved during the past decade and that indicators used in strategy evaluations have a time lag of approximately two years. It is suggested that more attention should be given to efforts to improve the timeliness of indicators in order to increase the effectiveness of the evaluations. More generally, it is suggested that greater emphasis should be put on the empirical research on actual use of indicators. 相似文献
192.
为进一步完善我国废物焚烧标准体系,防控废物焚烧环境风险,本文对欧盟废物焚烧指令与我国焚烧标准体系进行了对比分析。欧盟废物焚烧指令分别对专用焚烧厂和协同焚烧厂从废物运输到处理处置全过程的污染物排放控制做出了相关规定,适用于危险废物和非危险废物的焚烧以及常规污染物和有毒污染物的控制。欧盟废物焚烧指令对不同规模的焚烧设施采用统一标准,以日均值和半小时均值为污染物排放限值,更客观、准确地评价了污染物排放对环境的影响。与欧盟废物焚烧指令相比,我国废物焚烧标准涉及废物联合利用处置的相关条文较少,内容不详,项目缺失。我国烟尘、HCl的排放限值均在欧盟标准限值6倍以上,SO2的排放限值是欧盟标准的4~8倍。除CO、NOx的排放限值外,其他污染物排放限值也明显高于欧盟标准限值。我国采用抽样监测方法,监测结果可能在日常排放值的95%置信区间外,不具备代表性。我国可借鉴欧盟废物焚烧指令的成果制定协同焚烧标准,并严格污染物排放限值,考虑采用日均值或半小时均值的评价方法,提高我国废物焚烧标准的精确性和可执行性。 相似文献
193.
欧洲国家对游泳场水质的管理由来已久,管理经验丰富,而我国对游泳场水质的管理刚刚起步,仍然存在很多不足。针对目前我国由于监督管理以及某些地区的经营不善出现的一系列游泳场水质问题,本文介绍了欧盟成员国的游泳场水质质量监测管理现状,分别从游泳场水质管理立法、游泳场水质监测方法、游泳场水质评估和等级划分,以及欧盟国家游泳场未来发展趋势等方面,对欧盟国家游泳场水质管理的发展情况进行了分析总结。借鉴欧盟发达国家游泳场的水质管理经验对我国游泳场水质进行监测和管理非常重要,最后提出完善我国游泳场水质管理的一些建议,如建立游泳场水质监测日志,制作游泳场水质信息系统,加强游泳场水质监测技术研究等。希望借助欧盟国家的游泳场管理经验,促进我国游泳场水质管理的进一步发展和完善。 相似文献
194.
Evaluation of the European Space Agency Climate Change Initiative Soil Moisture Product over China Using Variance Reduction Factor
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Xiaoji Shen Ru An Jonathan Arthur Quaye‐Ballard Ling Zhang Zhe Wang 《Journal of the American Water Resources Association》2016,52(6):1524-1535
In this study, we evaluated the European Space Agency Climate Change Initiative soil moisture product v02.1 (ESA CCI SM v02.1) using in situ observations collected at 547 stations in China from 1991 to 2013. A conventional validation was first conducted, and the triple collocation errors of ESA CCI SM and the European Centre for Medium Range Weather Forecasting reanalysis data were approximately 0.053 and 0.050 m3/m3, respectively. To obtain more reliable validation results, the average soil moisture of the in situ observations per ESA CCI SM pixel was also used as the validation sites. Variance reduction factor (VRF) was adopted to quantify the accuracy of the soil moisture validation sites, and the average VRF was estimated at 4.88%. The validation results were enhanced by excluding validation sites with VRF errors greater than 5% from the statistical analysis. Although the ESA CCI SM underestimated the in situ observations with a Bias of 0.05 m3/m3, a moderately high correlation coefficient of 0.44 and a relatively small unbiased root‐mean‐square difference of 0.05 m3/m3 were observed. This study provides information on the utilization of ESA CCI SM for ecological protection, climate change, and hydrological forecasting. It also suggests the adoption of VRF for future error corrections of satellite‐based products. 相似文献
195.
《Journal of Environmental Policy & Planning》2012,14(3):197-213
Various parties relate to the precautionary principle with various understandings, claims and hopes. One of the ways to comprehend this multiplicity of meanings is to examine the composition of this problematic norm in the societal and institutional settings where it occurs. In this paper, I address its elaboration on the European Union institutional terrain with the European Commission's Communication on the Precautionary Principle. This effectuation of the precautionary principle embraces a number of issues of transnational or multilevel governance, expertise, legitimacy and sovereignty. The crucial matter that this paper engages in initially is that of risk analysis, the procedural framework that the precautionary principle confronts with its innovative articulations of science and policy-making, but to which I argue that it succumbs in part. Also explored, in turn, are further framings of the precautionary principle: science versus policy, a given policy domain—environment—in relation to others, as well as action versus inaction (whereas I argue that the precautionary principle ought to be about acting and doubting). These are further evaluated in the conclusions, together with the predicament of establishing a common understanding or defining the precautionary principle. I show that, complementary to drivers of divergence, one finds support for a common approach, though there is no radial symmetry in these tangled stakes, and any ‘diffusion’ of the precautionary principle has to be actively carried out for a shared understanding to be more widely shared. In this process, Europe, the European Commission, its Communication, and the precautionary principle are being shaped into diverse compositions of unity in diversity. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献
196.
《Journal of Environmental Policy & Planning》2012,14(4):303-317
The 1994 European Directive on Packaging and Packaging Waste allowed a diversity of conceptions of waste management to be developed and tested in various countries. Such a diversity may raise drawbacks related to the achievement of the single market and the European law of competition. The paper describes the main differences in waste management regimes in five countries: France, Germany, the Netherlands, Italy and Greece. This comparative approach allows us, first, to identify four main variables in order to characterize policy regimes, explaining the degree of orientation of waste regimes to cost-effectiveness. Second, we will show that implementation has resulted, in each country, in learning, correction and self-regulation, thus reducing the initial divergences between national regimes. Hence, efficient harmonization of waste management regimes may be achieved unexpectedly in a soft way without passing stringent European directives. Moreover, if policy-makers were to adopt explicitly the option of experimenting with competing organizational and policy concepts, as an approach to European harmonization, it would reveal, by 2004, the cost-effectiveness of alternative solutions at a time when European policy has to be reconsidered. Copyright © 2001 John Wiley & Sons, Ltd. 相似文献
197.
Volatile organic compounds (VOCs) are regulated aerial pollutants that have environmental and health concerns. Swine operations produce and emit a complex mixture of VOCs with a wide range of molecular weights and a variety of physicochemical properties. Significant progress has been made in this area since the first experiment on VOCs at a swine facility in the early 1960s. A total of 47 research institutions in 15 North American, European, and Asian countries contributed to an increasing number of scientific publications. Nearly half of the research papers were published by U.S. institutions.Investigated major VOC sources included air inside swine barns, in headspaces of manure storages and composts, in open atmosphere above swine wastewater, and surrounding swine farms. They also included liquid swine manure and wastewater, and dusts inside and outside swine barns. Most of the sample analyses have been focusing on identification of VOC compounds and their relationship with odors. More than 500 VOCs have been identified. About 60% and 10% of the studies contributed to the quantification of VOC concentrations and emissions, respectively. The largest numbers of VOC compounds with reported concentrations in a single experimental study were 82 in air, 36 in manure, and 34 in dust samples.The relatively abundant VOC compounds that were quantified in at least two independent studies included acetic acid, butanoic acid (butyric acid), dimethyl disulfide, dimethyl sulfide, iso-valeric, p-cresol, propionic acid, skatole, trimethyl amine, and valeric acid in air. They included acetic acid, p-cresol, iso-butyric acid, butyric acid, indole, phenol, propionic acid, iso-valeric acid, and skatole in manure. In dust samples, they were acetic acid, propionic acid, butyric acid, valeric acid, p-cresol, hexanal, and decanal. Swine facility VOCs were preferentially bound to smaller-size dusts.Identification and quantification of VOCs were restricted by using instruments based on gas Chromatography (GC) and liquid chromatography (LC) with different detectors most of which require time-consuming procedures to obtain results. Various methodologies and technologies in sampling, sample preparation, and sample analysis have been used. Only four publications reported using GC based analyzers and PTR-MS (proton-transfer-reaction mass spectrometry) that allowed continuous VOC measurement. Because of this, the majority of experimental studies were only performed on limited numbers of air, manure, or dust samples. Many aerial VOCs had concentrations that were too low to be identified by the GC peaks.Although VOCs emitted from swine facilities have environmental concerns, only a few studies investigated VOC emission rates, which ranged from 3.0 to 176.5 mg d−1 kg−1 pig at swine finishing barns and from 2.3 to 45.2 g d−1 m−2 at manure storages. Similar to the other pollutants, spatial and temporal variations of aerial VOC concentrations and emissions existed and were significantly affected by manure management systems, barn structural designs, and ventilation rates.Scientific research in this area has been mainly driven by odor nuisance, instead of environment or health concerns. Compared with other aerial pollutants in animal agriculture, the current scientific knowledge about VOCs at swine facilities is still very limited and far from sufficient to develop reliable emission factors. 相似文献
198.
In the last decades the European Union exerted influence on precautionary environmental planning by the establishment of several Directives. The most relevant were the Habitat-Directive, the EIA-Directive, the SEA-Directive and the Water Framework Directive. Comparing these EU policies in the area of environmental precaution it becomes obvious that there is a lot of common ground. Thus, the conclusion seems likely that the European Union, in doing so, has intended to establish general planning concepts through introducing several methodological steps indicated by the regulations. The goal of this article is firstly to point out, which are the common planning principles, converted by methodological elements and secondly examine the consideration of these planning concepts by the implementation and application in the member states. In this context it is analysed whether the connections and divergences between the directives lead to significant differences in the implementation process. To this aim the directives are shortly introduced and significant steps of the processes regulated by them are outlined. In the second steps the national legal implementation in the Alpine states and its consequences for the practical application are discussed. The results show a heterogeneous application of the EU principles. Within the comparative view on the four directives influence and causalities between the national implementation and the practical application were identified, which can be simplified as four types. Since a coherent strategic and methodological concept for improving environmental precaution planning from part of the EU is noticeable, more unity and comparability within the implementation is desirable, particularly in areas with comparable habitats such as the alpine space. Beyond this the trade-off between the directives poses an important task for the future. 相似文献
199.
Perrine C. S. J. Laroche Catharina J. E. Schulp Thomas Kastner Peter H. Verburg 《Ambio》2022,51(3):770
Nearly three-quarters of global natural rubber production is used to produce tyres, supporting mobility around the globe. The projected increase in mobility could contribute to further expansion of rubber plantations and impact tropical ecosystems. We quantified the use of natural rubber in tyres in the European Union (EU), the corresponding land footprint, and explored drivers of tyre use using country-specific transport statistics and trade registers of rubber goods. Five percent of the world’s natural rubber is consumed in tyres used in the EU, using up to a quarter of the area under rubber plantations in some producing countries. Car use is responsible for 58% of this consumption, due to car-dependent lifestyles that are associated with economic prosperity and spatial planning paradigms. While the EU’s transport policy focuses on reducing dependence on fossil-fuels, cross-cutting policies are needed to address car-dependency and reduce the EU’s land footprint in tropical landscapes without compromising progress towards decarbonisation.Supplementary InformationThe online version contains supplementary material available at 10.1007/s13280-021-01579-x. 相似文献
200.
Sediment-based investigation of naturally or historically eutrophic lakes -- implications for lake management 总被引:3,自引:0,他引:3
Implementation of the EU Water Framework Directive will call for new lake monitoring and management strategies. Therefore, different methods need to be tested in order to achieve reliable assessment of lake background conditions and water quality. Sediment-based techniques provide one such tool for lake management. In this work, 10 lakes, presumed to be naturally eutrophic, were investigated with a paleolimnological short core study. The aim of the study was to examine the composition of the diatom assemblages in their natural state, estimate their change over time and assess the background nutrient levels. One sediment profile from each lake was divided into six sub-samples that were analyzed for diatoms (60 samples). Diatom-based inference models were applied to reconstruct the past total phosphorus concentration and assess the eutrophication. The results indicated that all the lakes studied had already been nutrient-rich before the impact of modern agriculture. However, diatom assemblages have changed remarkably over time and total phosphorus concentrations have generally increased, so at present only two of the study lakes are close to their natural status. This suggests that naturally eutrophic lakes will probably require management actions to fulfill the new directive requirements in the future. 相似文献