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111.
Marine Elbakidze Thomas Hahn Volker Mauerhofer Per Angelstam Robert Axelsson 《Ambio》2013,42(2):174-187
The Biosphere Reserve (BR) concept aims at encouraging sustainable development (SD) towards sustainability on the ground by promoting three core functions: conservation, development, and logistic support. Sweden and Ukraine exemplify the diverse governance contexts that BRs need to cope with. We assessed how the BR concept and its core functions are captured in national legislations. The results show that the core functions are in different ways reflected in legal documents in both countries. While in Ukraine the BR concept is incorporated into legislation, in Sweden the concept is used as a soft law. In Ukraine managers desired stronger legal enforcement, while in Sweden managers avoided emphasis on legislation when collaborating with local stakeholders. Hence, BR implementation have adapted to different political cultures by development of diverse approaches. We conclude that a stronger legal support might not be needed for BRs, rather SD needs to be recognized as an integrated place-based process at multiple levels. 相似文献
112.
研究利用主动土壤干燥技术,配合微波消解、原子荧光分光光度法,在短时间内完成大量不同用途土壤,如湿地、山林、农田耕地、沙石地等样品中砷的测定。采集的新鲜土壤样品经初筛,过滤、筛分等处理后,利用主动烘干技术,模拟自然干燥状态,可以快速烘干不同含水量的大量样品。该方法避免了因自然风干产生的实验室间的交叉污染,可以短时间处理大量样品;利用微波消解法进行前处理,再利用原子荧光分光光度法进行样品测定。该研究对52个土壤样品中的砷进行了测定,砷含量在2.70~27.3mg/kg。方法的最低方法检出限可以达0.001mg/kg。 相似文献
113.
114.
Shane Morrin Paola Lettieri Chris Chapman Richard Taylor 《Waste management (New York, N.Y.)》2014,34(1):28-35
Often perceived as a Cinderella material, there is growing appreciation for solid waste as a renewable content thermal process feed. Nonetheless, research on solid waste gasification and sulphur mechanisms in particular is lacking. This paper presents results from two related experiments on a novel two stage gasification process, at demonstration scale, using a sulphur-enriched wood pellet feed.Notable SO2 and relatively low COS levels (before gas cleaning) were interesting features of the trials, and not normally expected under reducing gasification conditions. Analysis suggests that localised oxygen rich regions within the fluid bed played a role in SO2’s generation. The response of COS to sulphur in the feed was quite prompt, whereas SO2 was more delayed. It is proposed that the bed material sequestered sulphur from the feed, later aiding SO2 generation. The more reducing gas phase regions above the bed would have facilitated COS – hence its faster response. These results provide a useful insight, with further analysis on a suite of performed experiments underway, along with thermodynamic modelling. 相似文献
115.
Matt Gillen Author Vitae Janie L. Gittleman Author Vitae 《Journal of Safety Research》2010,41(3):301-306
The NIOSH Construction Program worked with industry stakeholders to develop a National Occupational Safety and Health Construction Agenda to target future research and activities. The Program and its partners are also cognizant that new developments can emerge over time and that research can play an important role in helping to understand and address these emerging issues. Examples of emerging issues relevant to construction safety and health are described. These include: (a) climate change and energy considerations; (b) green construction developments and opportunities; (c) new materials; (d) changes in industry structure and practice; (e) workforce developments and disparities; (f) injury underreporting and cost and risk shifting; and (g) increased interest in addressing root causes. Responding to emerging issues while maintaining a focus on fundamental longstanding issues represents an ongoing challenge for researchers and industry organizations. Additional research to understand the diffusion and adoption of research by the industry is also needed. Research accomplished to date provides a strong foundation for addressing future industry needs and trends. 相似文献
116.
The Economic and Environmental Outcomes of Microfinance Projects: An Indian Case Study 总被引:1,自引:0,他引:1
Microfinance projects now seek to achieve improvement in environmental quality in addition to poverty alleviation. Achievement
of these goals may depend upon the economic and environmental impact of microfinance businesses. This study is a quantitative
analysis of these outcomes for Ecodevelopment, an Indian microfinance project, which aims to prevent forest degradation by
poverty alleviation. The study divides businesses into perishable goods, non-perishable goods, simple skills, and special
skills and measures their economic outcome by two indicators, repayment percentage and continuity of businesses. The study
examines the effect of loan amount on the economic outcome of businesses. To quantify the environmental outcome, it analyzes
the use of firewood or fodder and release of pollutants by businesses. The results show that loan amount does not affect the
economic outcome, special skills have best performance, and skills cause less pressure on forest resources. These results
suggest the need for development of knowledge-intensive skills, involvement of institutions in the operations of business,
and inclusive policies for protected area management. 相似文献
117.
旅游季节性是一个旅游研究的常态问题。本文对近年来旅游季节性研究成果进行了综述,有助于深入了解旅游季节性影响因素以及动力机制,尤其指出旅游的季节性对生态环境的影响尤为严重,应格外重视旅游季节性问题,积极发展生态旅游,从而实现旅游地的可持续发展。 相似文献
118.
旋流器是一种新型的除油设备 ,它是利用离心力代替重力实现相的分离。本文在简要介绍旋流器的基本结构和分离原理的基础上 ,探讨了评价除油旋流器性能的方法 ,并进行了相应的室内实验研究 相似文献
119.
Sebastian Vicuna Edwin P. Maurer Brian Joyce John A. Dracup David Purkey 《Journal of the American Water Resources Association》2007,43(2):482-498
Abstract: Using the latest available General Circulation Model (GCM) results we present an assessment of climate change impacts on California hydrology and water resources. The approach considers the output of two GCMs, the PCM and the HadCM3, run under two different greenhouse gas (GHG) emission scenarios: the high emission A1fi and the low emission B1. The GCM output was statistically downscaled and used in the Variable Infiltration Capacity (VIC) macroscale distributed hydrologic model to derive inflows to major reservoirs in the California Central Valley. Historical inflows used as inputs to the water resources model CalSim II were modified to represent the climate change perturbed conditions for water supply deliveries, reliability, reservoir storage and changes to variables of environmental concern. Our results show greater negative impacts to California hydrology and water resources than previous assessments of climate change impacts in the region. These impacts, which translate into smaller streamflows, lower reservoir storage and decreased water supply deliveries and reliability, will be especially pronounced later in the 21st Century and south of the San Francisco bay Delta. The importance of considering how climate change impacts vary for different temporal, spatial, and institutional conditions in addition to the average impacts is also demonstrated. 相似文献
120.
Examining Hazard Mitigation Within the Context of Public Goods 总被引:1,自引:0,他引:1
Reddy SD 《Environmental management》2000,25(2):129-141
/ This paper presents a case study of an American barrier island devastated by a hurricane to show how it is addressing the free-riding problem and protecting its public goods, thereby contributing to hazard mitigation. It examines hazard mitigation and the free-riding problem within the public goods framework. Free-riding is a term used in the public choice theory and common pool resource literature. It is a term used for describing the actions of rational individuals who freely exploit a collective or public good at the expense of others. Free-riding is a major problem faced by public goods. The problem very frequently occurs in the context of hazard mitigation and coastal resource management. Very little is known about the factors that contribute to the promotion of hazard mitigation. This paper identifies some of the important factors that help local institutions provide and sustain hazard mitigation measures. Theoretical and practical implications for hazards research and disaster management policy are presented. 相似文献