Land degradation and desertification are among the biggest environmental challenges of our time. In the last 40 years, we lost nearly a third of the world’s arable farmland due to erosion, just as the number of people to be fed from it almost doubled. That’s why the UN General Assembly declared 2015 as the International Year of Soils. And the good news is that this new report shows that while Africa remains the most severely a«ected region, the benefit of taking action across the continent outweighs the cost of implementing it: not just by a little, but by a factor of seven.
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Library ResourceDocumentos de conferencias e informesDiciembre, 2015África septentrional, Egipto, Marruecos, Sudán, Túnez, África oriental, Burundi, Djibouti, Eritrea, Etiopía, Kenya, Madagascar, Malawi, Mozambique, Rwanda, Sudán del Sur, Tanzania, Zambia, Zimbabwe, África Central, Angola, Camerún, República Centroafricana, Chad, Congo, República Democrática del Congo, Gabón, África austral, Botswana, Lesotho, Namibia, Sudáfrica, Esuatini, África occidental, Benin, Burkina Faso, Ghana, Guinea, Côte d'Ivoire, Liberia, Malí, Mauritania, Níger, Nigeria, Senegal, Sierra Leona, Togo
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Library ResourceEnero, 2007Angola, Nigeria, Sudáfrica, Botswana, República Democrática del Congo, Congo, Sierra Leona, Chad, Ghana, África subsahariana
This report identifies the challenges that African legislators face in overseeing their countries’ oil and mining industries, as well as best practices in use around the world and recommendations for future engagement. The report finds that international organisations, local advocacy groups, and multinational corporations have played a key role in increasing public access to information and awareness in government oversight. Also, a growing number of African legislatures are more active in the management and oversight of the extractive sector.
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Library ResourceArtículos de revistas y librosDiciembre, 2005Angola, Burkina Faso, Bangladesh, Nigeria, Rwanda, Malí, Burundi, Zimbabwe, Esuatini, Ghana, Congo, Sierra Leona, Malawi, Níger, Mozambique, Liberia, Lesotho, Madagascar, Togo, Botswana, Gabón, Kenya
Les évaluations des bilans en éléments nutritifs aident à déterminer les effets des pratiques agricoles sur la fertilité des sols. Selon les situations, plusieurs approches et méthodes ont été utilisées. Ce bulletin présente un apercu de la situation actuelle des études des bilans en elements nutritifs. Il fait apparaître l'évolution des différentes approches et méthodes, les compare et souligne les améliorations effectuées ainsi que les questions qui restent à résoudre.
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Library ResourceArtículos de revistas y librosDiciembre, 2015Kenya, Filipinas, Uganda, Malí, Ucrania, Belarús, Australia, Ghana, Congo, Sudán del Sur, Sierra Leona, Sudán, Pakistán, Sri Lanka
Ce double numéro d’Unasylva se propose de sonder les relations complexes existant entre les forêts, les arbres et les catastrophes, et d’examiner comment il est possible de gérer au mieux les forêts et les arbres à la fois pour résister aux chocs et pour protéger contre les chocs. Les forêts et les arbres peuvent servir de tampons naturels contre les catastrophes et les chocs. Ils ont un rôle déterminant à jouer dans la protection contre les catastrophes et la réduction de leur impact.
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Library ResourceArtículos de revistas y librosDiciembre, 2016Francia, Honduras, Estados Unidos de América, Zambia, Tonga, Ghana, Congo, Sierra Leona, Malawi, Costa Rica, Níger, Palau, Kiribati, Madagascar, Luxemburgo, Países Bajos, Brasil, Canadá
La publication de ce numéro d’Unasylva coïncide avec deux événements marquants pour les forêts. Les 196 Parties à la Convention-cadre des Nations Unies sur les changements climatiques viennent de se réunir à la Conférence Paris climat 2015 en vue de négocier un accord qui soit en mesure de changer la donne en matière de changement climatique. Toujours à Paris, le Global Landscapes Forum 2015, Forum mondial sur les paysages, a été le théâtre de discussions de haut niveau portant sur la recherche et les politiques qui sous-tendent les questions d’utilisation des terres.
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Library ResourceArtículos de revistas y librosDiciembre, 2003Angola, Burkina Faso, Mozambique, Ghana, Malí, Burundi, Zimbabwe, Esuatini, Canadá, Congo, Djibouti, Sierra Leona, Malawi, Níger, Rwanda, Lesotho, Madagascar, Togo, Botswana, Gabón, Kenya, África
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Library ResourceArtículos de revistas y librosDiciembre, 1980Benin, Nigeria, Zambia, Malí, Ghana, Congo, Sierra Leona, Níger, Colombia, Kenya, Liberia, Japón, Camerún, Chad, Senegal, Sudán, Togo, Côte d'Ivoire, África
Policy makers as well as scientists have started to acquire an honest appreciation of the possibilities of reducing the wastage of materials which could be profitably utilized for improving or maintaining soil productivity. In addition, the great opportunities offered by making more efficient use of the potentials of biological nitrogen fixation in farming systems are now fully recognized. A number of recommendations and suggested guidelines were made by the various Working Groups during the two-week Workshop.
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Library ResourceArtículos de revistas y librosDiciembre, 1984Kenya, Francia, Nigeria, Filipinas, Micronesia, Australia, Ghana, Congo, Guinea, India, Sierra Leona, Etiopía, Níger, Brasil
Shifting cultivation, under its diverse forms of slash and burn system, is a traditional method of cultivating tropical upland soils, mostly for subsistence purposes. This traditional system of cultivation is in ecological balance with the environment and does not irreversibly degrade the soil resource, provided a sufficient length of fallow is allowed for soil restoration. However, increasing population pressures necessitate more intensive use of land. The consequence is extended cropping periods and shortened fallows.
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Library Resource
المعاهدة الافريقية للمحافظة على الطبيعة والموارد الطبيعية.
Convenciones internacionales o TratadosArgelia, Angola, Egipto, Guinea Ecuatorial, Benin, Nigeria, Mauricio, Mauritania, Zimbabwe, Namibia, Guinea-Bissau, Esuatini, Ghana, Congo, Guinea, Etiopía, Comoras, Eritrea, Cabo Verde, República Democrática del Congo, Liberia, Libia, Lesotho, Uganda, Somalia, Madagascar, República Centroafricana, Tanzania, Botswana, Senegal, Chad, Gabón, Burkina Faso, Malawi, Mozambique, Zambia, Gambia, Malí, Burundi, Santo Tomé y Príncipe, Djibouti, Sierra Leona, Seychelles, Rwanda, Marruecos, Níger, Sudáfrica, Togo, Túnez, Côte d'Ivoire, Sudán, Camerún, Kenya, África Central, África occidental, África oriental, África austral, África septentrional, Asia occidental, ÁfricaThe Contracting States, in the belief that objectives set out in the Preamble would be better achieved by amending the 1968 Algiers Convention on the Conservation of Nature and Natural Resources by expanding elements related to sustainable development, have agreed on measures to enhance environmental protection, to foster the conservation and sustainable use of natural resources; and to harmonize and coordinate policies in these fields with a view to achieving ecologically rational, economically sound and socially acceptable development policies and programs for the Convention area.
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