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991.
Recent interest in sustainable forest management planning in the Yukon has coincided with growing public awareness of climate
change, providing an opportunity to explore how forestry plans are incorporating climate change. In this paper, the Strategic
Forest Management Plans for the Champagne and Aishihik First Nations Traditional Territory (CATT) and the Teslin Tlingit Traditional
Territory (TTTT) are examined for evidence of adaptation to climate change. For each plan, management policies and practices
that are also recognized as ways to adapt to climate change are identified to provide information on the incremental costs
and benefits of additional adaptation efforts. A typology for classifying sustainable forest management plans according to
how they address climate change is proposed and applied to the CATT and TTTT plans. This typology, which may be useful to
any future retrospective assessments on how successful these or other sustainable forest management plans have been in addressing
and managing the risks posed by climate change, consists of a matrix that categorizes plans into one of four types; (1) proactive-direct,
(2) proactive-indirect, (3) reactive-direct, and (4) reactive-indirect. Neither of the plans available for the southern Yukon
explicitly identifies climate change vulnerabilities and actions that will be taken to reduce those vulnerabilities and manage
risks. However, both plans have incorporated some examples of ‘best management practices’ for sustainable forest management
that are also consistent with appropriate climate adaptation responses. Even in a jurisdiction facing rapid ecological changes
driven by climate change, where there is a relatively high level of awareness of climate change and its implications, forestry
planning processes have yet to grapple directly with the risks that climate change may pose to the ability of forest managers
to achieve the stated goals and objectives of sustainable forest management plans.
相似文献
J. L. InnesEmail: |
992.
Kirsten Halsnæs Priyadarshi Shukla 《Mitigation and Adaptation Strategies for Global Change》2008,13(2):105-130
The paper presents a number of ideas on how climate change policy implementation in developing countries can be supported
by alternative international cooperation mechanisms that are based on stakeholder interests and policy priorities including
broader economic and social development issues. It includes a brief review of current development policies, technological
research and promotion efforts, and climate change that demonstrates that mutual policy initiatives undertaken by governments
and the private sector actually have major positive impacts on climate change without being initiated by this global policy
concern. Furthermore a number of examples are given on how future development objectives in Brazil, China, and India jointly
can support economic and social goals and global climate change concerns if these goals are taken into consideration and supported
by international cooperative mechanisms. The paper proposes international cooperative mechanisms that can support the implementation
of integrated development and climate change policies. The mechanisms include an international sustainable development (SD)
and Climate Finance Mechanism (SDCFM), technology development and transition programmes, technology standards, and other measures.
相似文献
Priyadarshi Shukla (Corresponding author)Email: |
993.
There is debate whether or not further growth of metal extraction from the earth's crust will be sustainable in connection with geologic scarcity. Will future generations possibly face a depletion of specific metals? We study whether, for which metals and to what extent the extraction rate would need to be reduced in order to be sustainable. To do so, we propose an operational definition for the sustainable extraction rate of metals. We have divided 42 metals in 4 groups according to their geologic scarcity. Applying the proposed sustainability definition to the 17 scarcest metals, shows that for almost all considered metals the global consumption of primary resources needs to be reduced to stay within sustainable limits as defined in our analysis. The 8 geologically scarcest metals are antimony, bismuth, boron, copper, gold, molybdenum, rhenium and zinc. 相似文献
994.
Material selection in manufacturing may be characterized as a series of trade-offs between characteristics, properties, environmental impacts, sustainability, availability, and economics. Societal concerns about the environmental impacts of construction practices and materials have been expressed through an increase in the demand, production and use of “green” building products. This, combined with a desire to integrate more bioproducts and natural and renewable resources into the construction industry, has extended to the production and promotion of insulation made from sheep's wool.Although substantial literature exists on the insulation properties and other benefits of wool, less is known about the economics and manufacturing processes of sheep's wool insulation at varying scales of production. This paper contributes to this field of enquiry through presentation of the preliminary results of a wool insulation manufacturing pilot project, in which the scale and economics of the production of sheep's wool insulation were considered. Processing techniques, the impact of sheep breed, yield, energy use, and manufacturing costs were also examined. The results of the pilot project indicate that, while sheep's wool insulation produced at a smaller, or artisanal scale shows some potential, scale of operation and volume of production need to be carefully considered in order to ensure long-term sustainability of the operation. Using the least expensive sheep's wool available for the manufacture of wool batt insulation (and thereby reducing production costs) did not, in this pilot study, have a negative impact on productivity or product performance. Diversion of this waste stream of currently less marketable, and consequently less valuable wool, into the production of a green building material may offer small but significant benefit to sheep producers and the broader agricultural community, as well as consumers. 相似文献
995.
The aim of this research is to verify the relationship between the maturity levels of environmental management and the adoption of green supply chain management (GSCM) practices by electro-electronic companies in Brazil. In this work a two-phase research was conducted, with one quantitative and the other qualitative. The quantitative phase aimed to test whether a relationship between the maturity levels of environmental management and GSCM exists, while the qualitative phase tried to detail the characteristics of this relationship. The quantitative phase was conducted through a survey with 100 Brazilian electro-electronic companies and the collected data were processed using Structural Equation Modeling. For the qualitative phase, a multiple case study was conducted with three companies located in Brazil. The results indicate that: (1) The main hypothesis was confirmed and considered statistically valid, indicating that, indeed, the maturity level of environmental management influences the adoption of GSCM practices; (2) a coevolution tends to occur between the environmental maturity and the GSCM practices; that is, the more developed is the company's environmental management, more complex GSCM practices are adopted; and (3) the GSCM internal practices tend to present a greater relative adoption than the external practices; these external practices of GSCM tend to be adopted when the company is inserted in a higher environmental stage and/or operates under a scenario of stronger normative environmental pressure. By the way, this is the first research mixing survey and case studies on GSCM in Brazil. 相似文献
996.
With the pavement industry adopting sustainable practices to align itself with the global notion of habitable environments, there has been growing use of life-cycle assessment (LCA). A hybrid LCA was used to analyze the environmental footprint of using a reclaimed asphalt pavement (RAP) content in asphalt binder mixtures. The analysis took into consideration the material, construction, and maintenance and rehabilitation phases of the pavement life cycle. The results showed significant reductions in energy consumption and greenhouse gas (GHG) emissions with an increase in RAP content. The contribution of the construction phase to the GHGs and energy consumption throughout pavement life cycle is minimal. Feedstock energy, though not consequential when comparing asphalt mixtures only, has a significant impact on total energy. Based on LCA analysis performed for various performance scenarios, breakeven performance levels were identified for mixtures with RAP. The study highlighted the importance of achieving equivalent field performance for mixtures with RAP and virgin mixtures. 相似文献
997.
AbstractEuropean cities have emerged as laboratories for ‘sustainable mobility'. In the last few years, they have supported numerous electric car projects which combine clean engine technologies with offers on public or shared mobility. This paper compares two ongoing public electric car services in Berlin (BeMobility) and Paris (Autolib’). We explain how both projects shape future visions of sustainable mobility and transform regional transport systems in specific ways through their performative impact as local transport policy tools. Focusing on the socio-economic and political processes through which both projects were conceived and put into practice, we explain their differences as they reflect participating actors' interests in a French versus German industrial and transport policy context after the economic crisis in 2008. We find that whereas BeMobility integrates electric cars as one element in Berlin's intermodal transport system, and thus is centred around ‘intermodality' as the central vision of sustainable transport, Autolib’ in Paris essentially reproduces the dominant mode of private passenger car transport through adding a shared electric car fleet. 相似文献
998.
"绿色经济与可持续发展"是当今人类社会的主题,而任何一种可持续发展的主体都离不开城市。因此,推动城市发展模式向绿色生态城的转变已成为必然趋势。本文以建设绿色生态城为例,主要阐述推进绿色生态城建设的重要意义。同时,重点分析目前国内绿色生态城建设过程中存在的主要问题。最后,对破解绿色瓶颈,推进绿色生态城的建设提出几点建议。 相似文献
999.
Soil management practices for sustainable agro-ecosystems 总被引:1,自引:0,他引:1
A doubling of the global food demand projected for the next 50 years poses a huge challenge for the sustainability of both
food production and global and local environments. Today’s agricultural technologies may be increasing productivity to meet
world food demand, but they may also be threatening agricultural ecosystems. For the global environment, agricultural systems
provide both sources and sinks of greenhouse gases (GHGs), which include carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). This paper addresses the importance of soil organic carbon (SOC) for agro-ecosystems and GHG uptake and emission in agriculture,
especially SOC changes associated with soil management. Soil management strategies have great potential to contribute to carbon
sequestration, since the carbon sink capacity of the world’s agricultural and degraded soil is 50–66% of the historic carbon
loss of 42–72 Pg (1 Pg=1015 g), although the actual carbon storage in cultivated soil may be smaller if climate changes lead to increasing mineralization.
The importance of SOC in agricultural soil is, however, not controversial, as SOC helps to sustain soil fertility and conserve
soil and water quality, and organic carbon compounds play a variety of roles in the nutrient, water, and biological cycles.
No-tillage practices, cover crop management, and manure application are recommended to enhance SOC storage and to contribute
to sustainable food production, which also improves soil quality. SOC sequestration could be increased at the expense of increasing
the amount of non-CO2 GHG emissions; however, soil testing, synchronized fertilization techniques, and optimum water control for flooding paddy
fields, among other things, can reduce these emissions. Since increasing SOC may also be able to mitigate some local environmental
problems, it will be necessary to have integrated soil management practices that are compatible with increasing SOM management
and controlling soil residual nutrients. Cover crops would be a critical tool for sustainable soil management because they
can scavenge soil residual nitrogen and their ecological functions can be utilized to establish an optimal nitrogen cycle.
In addition to developing soil management strategies for sustainable agro-ecosystems, some political and social approaches
will be needed, based on a common understanding that soil and agro-ecosystems are essential for a sustainable society. 相似文献
1000.
Graciela A. Canziani Rosana M. Ferrati Claudio Rossi Diego Ruiz-Moreno 《Regional Environmental Change》2006,6(4):181-191
The purpose of this work is to assess the impact on the Esteros del Ibera wetland ecosystem caused by the Yacyreta dam, a large hydroelectric power plant on the Parana River, Argentina, in comparison to other factors of environmental change. The project of the dam started around 1970. The power plant began operating in 1994. In 1989, the neighboring Ibera wetland ecosystem showed a substantial increase in the water level for which several different causes were conceivable, including climate change and the dam construction. We analyzed all existing hydrometeorological data and studied other changes that were observed in this ecosystem. A water balance model was used to analyze different scenarios. Increased groundwater inflow, generated since the construction of the dam, appears to be affecting the wetland more than any other factor. The study has implications for the assessment of global and regional consequences of building dams.
相似文献
Graciela A. CanzianiEmail: Phone: +54-2292-447104Fax: +54-2293-446317 |