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人类的文明建筑在人们对于能源的认识和掌握之上,每一次人类文明的跨越都与能源技术的进步密不可分。能源是每个国家发展所必须具备的重要元素之一,人们在发展经济、不断提高自身生活水平的同时,应该看到能源的缺乏带来的严重后果,只有保持能源的可持续发展,构建和谐社会才能变成现实。 相似文献
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This article discusses the development of Cuba's energy sector in the last half century, especially the last 25 years, emphasizing social, economic, environmental and institutional aspects. Energy use is evaluated with the indicators for sustainable energy development (ISED) developed by the International Atomic Energy Agency (IAEA) and applied by the authors, based on data series from Cuba's National Office of Statistics. Cuba's economy and energy sector have undergone important changes, particularly in the 1990s during the crisis that resulted from the termination of the country's special trade relations with former socialist countries. Based on an analysis of Cuba's economy and energy situation, a number of policies were selected for evaluation, including those aimed to reduce energy import dependence, increase the share of renewable energy sources and improve energy efficiency. The effects of these policies are evaluated in view of sustainable energy development. The article concludes with an evaluation of recent progress towards sustainable energy development in Cuba, and outlines future options for the country. 相似文献
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Energy and resource basis of an Italian coastal resort region integrated using emergy synthesis 总被引:1,自引:0,他引:1
Paolo Vassallo Chiara Paoli David R. Tilley Mauro Fabiano 《Journal of environmental management》2009,91(1):277-289
Sustainable development of coastal zones must balance economic development that encourages human visitation from a larger population with desires that differ from the local residents with the need to maintain opportunities for the local resident society and conserve ecological capital, which may serve as the basis for residents.We present a case study in which the sustainability level of a coastal zone (Riviera del Beigua), located along the Ligurian coast of north-western Italy, was assessed through the lens of systems ecology using emergy synthesis to integrate across economic, social and environmental sub-systems.Our purposes were (1) to quantify the environmental sustainability level of this coastal zone, (2) to evaluate the role of tourism in affecting the economy, society and environment, and (3) to compare emergy synthesis to Butler's Tourism Area Life Cycle model (TALC). Results showed that 81% of the total emergy consumption in the coastal zone was derived from external sources, indicating that this tourist-heavy community was not sustainable. Tourism, as the dominant economic sub-system, consumed 42% of the total emergy budget, while local residents used the remaining 58%. The progressive stages of the TALC model were found to parallel the dynamic changes in the ratio of external emergy inputs to local emergy inputs, suggesting that emergy synthesis could be a useful tool for detecting a tourist region's TALC stage. Use of such a quantitative tool could expedite sustainability assessment to allow administrative managers to understand the complex relationship between a region's economy, environment and resident society so sound policies can be developed to improve overall sustainability. 相似文献
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David H. Moreau 《Journal of the American Water Resources Association》2014,50(1):196-204
Population growth in the Southeast has driven withdrawals for municipal water beyond the limits of local supplies. With few options left for development of virgin sources, a number of urban areas are looking toward demand management and additional supplies by reallocating storage in reservoirs that were built primarily or in part for hydropower. Hydropower has become a lesser part of the mix of energy sources, and the question arises as to value of water for that purpose relative to its value for municipal use. Three cases are used to examine the issue. Effects of withdrawal for municipal water supply on output of electric energy are estimated. Benefits of foregone energy are evaluated using the least cost alternative for replacement, and benefits for municipal water are estimated using costs for development of new sources. Benefits for use as municipal water are found to be considerably higher than benefits for hydroelectric energy at existing prices, even higher than the least cost alternative for replacement. Given the spatial distribution of the cases, that finding would appear to hold in general across the region. 相似文献
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Energy Supply Potentials and Needs, and the Environmental Impact of their Use in Sudan 总被引:2,自引:0,他引:2
Abdeen Mustafa Omer 《The Environmentalist》2002,22(4):353-365
Sudan is an agricultural country with fertile land, plenty of water resources, livestock, forestry resources, and agricultural residues. An overview of the energy situation in Sudan is introduced with reference to the end uses and regional distribution. Energy sources are divided into two main types; conventional energy (biomass, petroleum products, and electricity); and non-conventional energy (solar, wind, hydro-electricity, etc.). Sudan possesses a relatively high abundance of solar radiation, and moderate wind speeds, hydro, and biomass energy resources. The application of the new and renewable sources of energy available in Sudan is now a major issue in future energy strategic planning and for an alternative to fossil conventional energy. Sudan is an important case study in the context of renewable energy. It has a long history of meeting its energy needs through renewables. Sudan's renewables' portfolio is broad and diverse, due in part to the country's wide range of climates and landscapes. Like many of the African leaders in renewable energy utilization, Sudan has a well-defined commitment to continue research, development, and implementation of new technologies. Sustainable low-carbon energy scenarios for the new century emphasize the untapped potential of renewable resources. Rural areas of Sudan can benefit from this transition. The increased availability of reliable and efficient energy services stimulates new development alternatives. It is concluded that renewable, environmentally friendly, energy must be encouraged, promoted, invested, implemented, and demonstrated by full-scale plants, especially for use in the remote rural areas of Sudan. 相似文献
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Bent Sørensen 《International Journal of Green Energy》2017,14(1):39-54
In the wake of the Fukushima nuclear accident, alternative energy paths have been discussed for Japan, but except for a few studies the assumption is usually made that Japan is too densely populated to be suited for a near-100% sustainable, indigenous energy provision. The studies emphasizing renewable energy have proposed the use of photovoltaic power as the main source of electricity supply, in combination with diurnal battery storage and supplemented by other renewable sources such as wind, hydro, and geothermal power. Here, an alternative approach is explored, with wind and derived hydrogen production as the main energy source, but still using solar energy, biofuels, and hydropower in a resilient combination allowing full satisfaction of demands in all sectors of the economy, i.e., for dedicated electricity, transportation energy as well as heat for processes and comfort. Furthermore, the possible advantage of establishing a regional energy system with energy interchange and coordinated management of the mix of renewable energy resources across a wider region is discussed. As the closest neighbor, the energy system of South Korea is considered, first regarding the possibility of a similar full renewable energy reliance, and then for possible synergetic effects of connecting the Korean and the Japanese energy systems, in order to be able to better cope with the intermittency of renewable energy source flows. 相似文献
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应用昌吉州第一次全国污染源普查成果,并在此基础上综合分析了昌吉州煤化产业的前景,炼焦业的现状、污染状况以及社会经济贡献,对发展昌吉州焦化产业与减轻环境污染提出了对策建议。 相似文献
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Jie Zhuang Randall W. Gentry Gui-Rui Yu Gary S. Sayler John W. Bickham 《Environmental management》2010,46(4):525-530
The sustainability implications of bioenergy development strategies are large and complex. Unlike conventional agriculture,
bioenergy production provides an opportunity to design systems for improving eco-environmental services. Different places
have different goals and solutions for bioenergy development, but they all should adhere to the sustainability requirements
of the environment, economy, and society. This article serves as a brief overview of China’s bioenergy development and as
an introduction to this special issue on the impacts of bioenergy development in China. The eleven articles in this special
issue present a range of perspectives and scenario analyses on bioenergy production and its impacts as well as potential barriers
to its development. Five general themes are covered: status and goals, biomass resources, energy plants, environmental impacts,
and economic and social impacts. The potential for bioenergy production in China is huge, particularly in the central north
and northwest. China plans to develop a bioenergy capacity of 30GW by 2020. However, realization of this goal will require
breakthroughs in bioenergy landscape design, energy plant biotechnology, legislation, incentive policy, and conversion facilities.
Our analyses suggest that (1) the linkage between bioenergy, environment, and economy are often circular rather than linear
in nature; (2) sustainability is a core concept in bioenergy design and the ultimate goal of bioenergy development; and (3)
each bioenergy development scheme must be region-specific and designed to solve local environmental and agricultural problems. 相似文献
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对节约型社会的几点思考 总被引:1,自引:0,他引:1
建设节约型社会是实现我国经济社会可持续发展的必然选择。建立节约型社会需要发挥政府、企业、个人三方面的作用,需要提高全民节约意识,树立科学发展观,进行体制、政策创新及推进技术进步。 相似文献
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宋淑叶 《中国环境管理干部学院学报》2005,15(4):88-89,93
感光材料在其生产过程中产生了大量的感光材料废物,对环境造成了严重污染,影响社会、经济的稳定发展,危及人类的身体健康.针对感光材料废物严重污染以及贵金属资源的大量流失的现状,提出加强宣传,增强全民环保意识,完善手续,加大执法监督力度等符合我国国情的治理对策. 相似文献
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Jensen TS Jensen JD Hasler B Illerup JB Andersen FM 《Journal of environmental management》2007,82(1):133-143
Integrated modelling of the interaction between environmental pressure and economic development is a useful tool to evaluate environmental consequences of policy initiatives. However, the usefulness of such models is often restricted by the fact that these models only include a limited set of environmental impacts, which are often energy-related emissions. In order to evaluate the development in the overall environmental pressure correctly, these model systems must be extended. In this article an integrated macroeconomic model system of the Danish economy with environmental modules of energy related emissions is extended to include the agricultural contribution to climate change and acidification. Next to the energy sector, the agricultural sector is the most important contributor to these environmental themes and subsequently the extended model complex calculates more than 99% of the contribution to both climate change and acidification. Environmental sub-models are developed for agriculture-related emissions of CH(4), N(2)O and NH(3). Agricultural emission sources related to the production specific activity variables are mapped and emission dependent parameters are identified in order to calculate emission coefficients. The emission coefficients are linked to the economic activity variables of the Danish agricultural production. The model system is demonstrated by projections of agriculture-related emissions in Denmark under two alternative sets of assumptions: a baseline projection of the general economic development and a policy scenario for changes in the husbandry sector within the agricultural sector. 相似文献
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迪那2气田液化气生产设计采用空冷加水冷工艺,存在能耗大和水冷器易腐蚀结垢等安全隐患。利用HYSYS软件对迪那2气田轻烃回收工艺进行分析,并增设液化气后冷器,利用脱乙烷塔气相对液化气进行冷却,通过醇烃液分离压力、后冷器及空冷器冷却能力等参数的模拟计算和优化,将醇烃液三相分离器压力由常规的2.5MPa提高至5MPa,取消醇烃液导热油加热和液化气水冷,降低了装置能耗,年节水1.44×104m3,节电1.45×105 kW.h,杜绝了水冷器腐蚀穿孔的安全隐患,最终提出了醇烃液高压分离+空冷器+后冷器的液化气无水冷却工艺。 相似文献
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Review and challenges of policies of environmental protection and sustainable development in China 总被引:9,自引:0,他引:9
China is confronted with the dual task of developing its national economy and protecting its ecological environment. Since the 1980s, China's policies on environmental protection and sustainable development have experienced five changes: (1) progression from the adoption of environmental protection as a basic state policy to the adoption of sustainable development strategy; (2) changing focus from pollution control to ecological conservation equally; (3) shifting from end-of-pipe treatment to source control; (4) moving from point source treatment to regional environmental governance; and (5) a turn away from administrative management-based approaches and towards a legal means and economic instruments-based approach. Since 1992, China has set down sustainable development as a basic national strategy. However, environmental pollution and ecological degradation in China have continued to be serious problems and have inflicted great damage on the economy and quality of life. The beginning of the 21st century is a critical juncture for China's efforts towards sustaining rapid economic development, intensifying environmental protection efforts, and curbing ecological degradation. As the largest developing country, China's policies on environmental protection and sustainable development will be of primary importance not only for China, but also the world. Realizing a completely well-off society by the year 2020 is seen as a crucial task by the Chinese government and an important goal for China's economic development in the new century, however, attaining it would require a four-fold increase over China's year 2000 GDP. Therefore, speeding up economic development is a major mission during the next two decades and doing so will bring great challenges in controlling depletion of natural resources and environmental pollution. By taking a critical look at the development of Chinese environmental policy, we try to determine how best to coordinate the relationship between the environment and the economy in order to improve quality of life and the sustainability of China's resources and environment. Examples of important measures include: adjustment of economic structure, reform of energy policy, development of environmental industry, pollution prevention and ecological conservation, capacity building, and international cooperation and public participation. 相似文献