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231.
环境标准是环境科学中经常出现的一个概念,它对环境法的制定和实施都发挥着十分重要的作用。选取了良好环境权这一视角,对环境标准制度展开论述。在分别介绍了环境标准和良好环境权的基本内容之后,对两者的互动关系进行了分析;在此基础上,文章对有关环境标准的两个难题作了深入的探讨,希望对这方面的研究有所助益。  相似文献   
232.
实现“十一五”规划纲要中关于总量控制的战略目标,在采用排污收费政府管制手段防治污染的同时,把排污权交易制度作为实施总量控制目标的主要手段来抓,具有重要的理论和实际意义。本文就排污收费制度与排污权交易制度各方面存在的异同,讨论并指出排污权交易制度存在的必要性,把排污权交易制度作为一种过渡性措施加以构建,缓解经济发展与环境保护的矛盾,实现人与自然的和谐发展。  相似文献   
233.
碳减排问题刍议   总被引:5,自引:2,他引:5  
相震 《环境科技》2009,22(1):75-78
全球气候变化对人类的生存和发展造成的负面影响已是一个不争的事实。将减少碳排放量融入可持续发展已成为全世界的共识。文章主要从宏观的角度,通过追溯国际碳减排任务的确定、减排发展机制产生的历史背景和我国碳排放现状及趋势分析,论述了国际碳减排方式对我国的机遇和挑战。  相似文献   
234.
针对高职院校国际贸易专业教学中校内实训与实际岗位需求脱节、不能激发学生的实践能力等问题,提出虚拟仿真实训教学在国际贸易专业中的应用,包括虚拟仿真实训教学的构建思路、实训体系的建立、实训内容和效果的评估、基于仿真外贸业务流程的实训平台建设。  相似文献   
235.
长期以来,环保被当作一种社会义务或福利。然而,在环保问题日益受到国际关注并且多边国际规范不断加严的情况下,环境问题不仅是社会问题,更是一个经济问题,环保既可以造成致命的经济问题,也可以产生可观的经济效益。该文从环保已成为世界贸易组织等国际规范的重要内容,环保对国际贸易的直接影响等方面,来阐述环境保护与中国外贸事业发展的关系,并就外贸发展对策提出了一些较有见地的看法。  相似文献   
236.
近年来,饮食业油烟污染已成为城市大气污染的主要来源之一.比较分析了目前国内使用的几类油烟净化设备的性能及应用现状,提出不同规模的饮食业单位应选择的油烟净化技术.通过比较发现,静电油烟净化技术和静电复合式油烟净化技术是目前国内油烟净化技术的主流,并提出等离子体技术、催化燃烧技术是今后油烟净化的发展趋势.  相似文献   
237.
The shark fin trade is a major driver of shark exploitation in fisheries all over the world, most of which are not managed on a species‐specific basis. Species‐specific trade information highlights taxa of particular concern and can be used to assess the efficacy of management measures and anticipate emerging threats. The species composition of the Hong Kong Special Administrative Region of China, one of the world's largest fin trading hubs, was partially assessed in 1999–2001. We randomly selected and genetically identified fin trimmings (n = 4800), produced during fin processing, from the retail market of Hong Kong in 2014–2015 to assess contemporary species composition of the fin trade. We used nonparametric species estimators to determine that at least 76 species of sharks, batoids, and chimaeras supplied the fin trade and a Bayesian model to determine their relative proportion in the market. The diversity of traded species suggests species substitution could mask depletion of vulnerable species; one‐third of identified species are threatened with extinction. The Bayesian model suggested that 8 species each comprised >1% of the fin trimmings (34.1–64.2% for blue [Prionace glauca], 0.2–1.2% for bull [Carcharhinus leucas] and shortfin mako [Isurus oxyrinchus]); thus, trade was skewed to a few globally distributed species. Several other coastal sharks, batoids, and chimaeras are in the trade but poorly managed. Fewer than 10 of the species we modeled have sustainably managed fisheries anywhere in their range, and the most common species in trade, the blue shark, was not among them. Our study and approach serve as a baseline to track changes in composition of species in the fin trade over time to better understand patterns of exploitation and assess the effects of emerging management actions for these animals.  相似文献   
238.
The unsustainable trade in wildlife is a key threat to Earth's biodiversity. Efforts to mitigate this threat have traditionally focused on regulation and enforcement, and there is a growing interest in campaigns to reduce consumer demand for wildlife products. We aimed to characterize these behavior-change campaigns and the evidence of their impacts. We searched peer-reviewed and grey literature repositories and over 200 institutional websites to retrieve information on demand-reduction campaigns. We found 236 campaigns, mainly in the grey literature. Since the 1970s, the number of campaigns increased, although for over 15% a start date could not be found. Asia was the primary focus, although at the national level the United States was where most campaigns took place. Campaigns most often focused on a single species of mammal; other vertebrates groups, with the exception of sharks, received limited attention. Many campaigns focused on broad themes, such as the wildlife trade in general or seafood. Thirty-seven percent of campaigns reported some information on their inputs, 98% on strategies, 70% on outputs, 37% on outcomes (i.e., changes in the target audience), and 9% on impacts (i.e., biological changes or threat reduction). Information on outcomes and impacts was largely anecdotal or based on research designs that are at a high risk of bias, such as pre- and postcampaign comparisons. It was unclear whether demand-reduction campaigns had direct behavioral or biological impacts. The lack of robust impact evaluation made it difficult to draw insights to inform future efforts, a crucial part of effectively addressing complex issues, such as the wildlife trade. If demand-reduction campaigns are to become a cornerstone of the efforts to mitigate the unsustainable trade in wildlife, conservationists need to adopt more rigorous impact evaluation and a more collaborative approach that fosters the sharing of data and insights.  相似文献   
239.
In order to ensure equality of occupational health care among employees of small and medium-sized enterprises (SMEs) and of larger companies, amendments in the regulations of the numerous German accident insurance funds had to be made to provide for full availability of services, as requested by German and European law. According to these amendments, sectors formerly exempted due to small size and due to lack of an adequate number of qualified personnel, had to be covered by occupational health care. In order to reach this target group new strategies of care delivery had to be developed, making use of pre-existing infrastructure and networks.

In Germany, district trade association (Kreishandwerkerschaften) have proved to be very effective for introducing occupational safety and health care into SMEs by either hiring external multidisciplinary services or by establishing a common service to be used by all associated crafts establishments. In a study conducted by the Federal Office for Health and Safety at Work in 1996 (Boldt, Gille, &Grahl, 1997), 7 district trade association were looked at in detail for their strategies. The results were discussed and supplemented in a 2-day workshop.  相似文献   
240.
Conservation of sea snakes is virtually nonexistent in Asia, and its role in human–snake interactions in terms of catch, trade, and snakebites as an occupational hazard is mostly unexplored. We collected data on sea snake landings from the Gulf of Thailand, a hotspot for sea snake harvest by squid fishers operating out of the ports of Song Doc and Khanh Hoi, Ca Mau Province, Vietnam. The data were collected during documentation of the steps of the trading process and through interviewers with participants in the trade. Squid vessels return to ports once per lunar synodic cycle and fishers sell snakes to merchants who sort, package, and ship the snakes to various destinations in Vietnam and China for human consumption and as a source of traditional remedies. Annually, 82 t, roughly equal to 225,500 individuals, of live sea snakes are brought to ports. To our knowledge, this rate of harvest constitutes one of the largest venomous snake and marine reptile harvest activities in the world today. Lapemis curtus and Hydrophis cyanocinctus constituted about 85% of the snake biomass, and Acalyptophis peronii, Aipysurus eydouxii, Hydrophis atriceps, H. belcheri, H. lamberti, and H. ornatus made up the remainder. Our results establish a quantitative baseline for characteristics of catch, trade, and uses of sea snakes. Other key observations include the timing of the trade to the lunar cycle, a decline of sea snakes harvested over the study period (approximately 30% decline in mass over 4 years), and the treatment of sea snake bites with rhinoceros horn. Emerging markets in Southeast Asia drive the harvest of venomous sea snakes in the Gulf of Thailand and sea snake bites present a potentially lethal occupational hazard. We call for implementation of monitoring programs to further address the conservation implications of this large‐scale marine reptile exploitation. Cosecha de Serpientes Marinas en el Golfo de Tailandia  相似文献   
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