Search results
Showing items 1 through 9 of 16.
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Library Resource
United States of America, Japan, China, India, Russia
Much is reported about the destruction of natural forests and the consequences for global warming, while on the other hand, exotic plantations in some regions struggle to gain public acceptance. The earth's population is projected to rise to around 9 billion by 2050, with a concomitant increase in demand for forest products. Inevitably, forests in general, and managed forest in particular, will be called on to provide an ever-increasing proportion of local supplies and the international wood trade.
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Library Resource
China, United States of America, India, Spain, Australia
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Library Resource
Indonesia, Australia, United States of America, Germany, Europe
Fires have attracted interest and generated alarm since the early 1980s. This concern has been particularly evident in tropical forests of Southeast Asia and the Amazon, but disastrous fires in recent summers in Australia, Europe, and the United States have drawn worldwide attention.
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Library Resource
Wolf Canis lupus dispersal, social structure and mortality have been extensively studied in natural and semi-natural areas of North America and northern Europe but have never been assessed in agricultural areas. From 1997 to 2004, 14 wolves (11 in a wolf-saturated area and three in a low-density area) were radio-collared with long-lasting transmitters in a Spanish agricultural area containing a high-human-population density, a dense network of roads and a shortage of wild ungulates. The wolves mainly feed on an overabundance of livestock carrion.
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Library Resource
Hungary, Brazil, United States of America, Europe
A dráguló olajár „felszínre hozta” a fosszilis energiahordozók környezetbarát energiahordozókkal való kiváltásának problémáját. Az olajkészletek korlátozottságamellett a bizonytalan kitermelés és a folyamatosan növekvő árak a bioüzemanyagokfelé irányítják a politikai döntéshozók és a befektetők figyelmét.
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Library Resource
Egypt, Bangladesh, United States of America, Chile, Germany, Peru, Indonesia, Norway, Canada, Republic of Korea, Thailand, Italy, Japan, Uganda, Myanmar, Tanzania, Netherlands, India, Russia, China, Brazil, Cambodia
Several decades ago, the efforts of public administrations were concentrated on developing fisheries and aquaculture and ensuring growth in production and consumption. Then, in the 1980s, as many resources became fully or overexploited, the attention of policy-makers began to focus instead on fisheries management, in addition to development of aquaculture. Aquaculture continues to expand, while marine capture fisheries – when summed together worldwide – seem to have reached a ceiling.
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Library Resource
France, United States of America, Egypt, Sri Lanka, Indonesia, United Kingdom, Pakistan, Thailand, Nepal, Morocco, Malaysia, Mexico, Netherlands, India, Sudan, Vietnam
The performance of many canal irrigation delivery systems is unsatisfactory in terms of: (i) water resources management; (ii) service to irrigated agriculture; and (iii) costeffectiveness of infrastructure management. In recent years, participatory approaches and management transfer reforms have been promoted as part of the solution for more cost-effective and sustainable irrigation services. Large agency-managed systems have been turned over partially or completely to various types of management bodies. However, the results have usually been disappointing.
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Library Resource
France, Estonia, United States of America, Sweden, Germany, China, Australia, Latvia, Canada, Colombia, Lithuania, South Africa, Malaysia, Italy, Netherlands, India, Mexico, Brazil
Bioenergy sits at the intersection of three of the world’s great challenges - energy security, climate change, and poverty reduction - and has received an enormous amount of attention in the past few years. Joint work on these issues is vital considering that together, the G8 +5 Countries account for about 55 percent of the world’s population, 70+ percent of global GDP, and about 72 percent of world energy-related and industry CO2 emissions (excluding deforestation). Bioenergy statistics are inadequate and not up to date.
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Library Resource
Egypt, United States of America, Spain, Iraq, Malaysia, Uzbekistan, United Kingdom, Peru, Iran, Argentina, India, Kazakhstan, Pakistan, Mexico, Netherlands
Drainage of agricultural land is one of the most critical water management tools for the sustainability of productive cropping systems, as frequently this sustainability is extremely dependent on the control of waterlogging and soil salinization in the rootzone of most crops. On some agricultural lands, the natural drainage is sufficient to maintain high productivity. However, many others require improvements in surface and subsurface drainage in order to optimize land productivity, while maintaining the quality of soil resources.
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Library Resource
France, Bangladesh, Belize, Samoa, Chile, China, Sri Lanka, Canada, Iran, Sierra Leone, Panama, Mozambique, Philippines, Kiribati, Madagascar, Myanmar, Cambodia, Maldives, Kenya
Il y a plusieurs décennies, les efforts des administrations consistaient essentiellement à développer la pêche et l’aquaculture et à veiller à ce que la production et la consommation augmentent. Lorsque, dans les années 80, de nombreuses ressources ont été exploitées complètement ou à l’excès, les décideurs ont commencé à être attentifs à la gestion des pêches, outre le développement de l’aquaculture. L’aquaculture continue à progresser, tandis que la pêche – pour l’ensemble du monde – semble plafonner.
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