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1. Library Resource

   

   The Economics of Land Degradation in Africa_Benefits of Action Outweigh the Costs_A complementary report to the ELD Initiative

   Documentos de conferencias e informes

   Diciembre, 2015

   África 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

   Degradación y Tenencia de la Tierra

   Tierra, Cambio Climático y Medio Ambiente

   Medio ambiente

   Desertificación

   Degradación de tierras

   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.
   

2. Library Resource

   

   Rewriting forest history in West Africa

   Enero, 2002

   Liberia, Benin, Ghana, Sierra Leona, Togo, Côte d'Ivoire, África subsahariana

   Tierra, Cambio Climático y Medio Ambiente

   Tenencia de Bosques

   ciencias forestales

   Medio ambiente

   Deforestación

   Kissidougou in Guinea, West Africa, is characterised by so-called 'forest islands', relics - it was assumed -of original dense forest cover. It was also assumed that local cultivation practice was to blame for the destruction of the trees. However, as collaborative research led by the School of Oriental and African Studies, the Institute of Development Studies and Guinean researchers discovered, villagers had a different story to tell: that the forest islands had in fact been established over several generations as part of a process of deliberate forest management.

3. Library Resource

   

   Numero non thematique

   Artículos de revistas y libros

   Diciembre, 1998

   Liberia, Benin, Ghana, Sierra Leona, Esuatini, África

   Tierra, Cambio Climático y Medio Ambiente

   Tenencia de Bosques

   ciencias forestales

   Propiedad pública

   Medio ambiente

   Ordenación de recursos naturales

   Investigación

   Deforestación

   Tierras forestales

   Mejora de la tierra

   La plupart des numros d'Unasylva sont axs sur un thme particulier. L'objectif n'est pas de prsenter une introduction ou un manuel sur le sujet choisi (ce qui serait impossible tant donn le format de la revue), mais plutt de proposer une srie d'analyses sur des aspects spcifiques qui contribuent veiller l'intrt et l'attention du lecteur. Les articles sont dits de faon intresser les lecteurs dont le travail porte essentiellement sur le thme choisi, ainsi que la majorit des lecteurs qui travaillent dans d'autres disciplines.

4. Library Resource

   

   Non-thematic issue

   Artículos de revistas y libros

   Diciembre, 1998

   Liberia, Benin, Ghana, Sierra Leona, Esuatini, Italia, África

   Tierra, Cambio Climático y Medio Ambiente

   Tenencia de Bosques

   ciencias forestales

   Propiedad pública

   Medio ambiente

   Ordenación de recursos naturales

   Investigación

   Deforestación

   Tierras forestales

   Mejora de la tierra

   Most issues of Unasylva focus on a specific theme. The objective of this thematic orientation is to examine in depth a given aspect of forest and forestry development in order to highlight its significance and importance within our wider universe. The aim is not to serve as a primer or textbook on the chosen subject (this clearly would he impossible given the limited size of the journal) but rather to present a series of analyses on specific aspects that help to spark interest and awareness.

5. Library Resource

   

   Número no temático

   Artículos de revistas y libros

   Diciembre, 1998

   Liberia, Benin, Ghana, Sierra Leona, Esuatini, África

   Tierra, Cambio Climático y Medio Ambiente

   Tenencia de Bosques

   ciencias forestales

   Propiedad pública

   Medio ambiente

   Ordenación de recursos naturales

   Investigación

   Deforestación

   Tierras forestales

   Mejora de la tierra

   La mayor parte de los nmeros de Unasylva se centran en un tema concreto. El objetivo de esa orientacin temtica es examinar de forma pormenorizada un aspecto determinado de las actividades y el desarrollo forestales, con el fin de resaltar su significado e importancia dentro de los confines ms amplios de nuestro universo. Sin pretender que los diferentes nmeros sean como un manual de una materia concreta, se propone presentar una serie de anlisis de cuestiones especficas que contribuyan a suscitar inters y a concienciar al lector.

6. Library Resource

   

   Organic recycling in Africa. Papers presented at the FAO/SIDA Workshop on the Use of Organic Materials as Fertilizers in Africa, Buea, Cameroon, 5-14 December 1977

   Artículos de revistas y libros

   Diciembre, 1980

   Benin, Nigeria, Zambia, Malí, Ghana, Congo, Sierra Leona, Níger, Colombia, Kenya, Liberia, Japón, Camerún, Chad, Senegal, Sudán, Togo, Côte d'Ivoire, África

   Tierra, Cambio Climático y Medio Ambiente

   Gestión de tierras agricolas

   Ordenación de tierras sostenible

   Ordenación de recursos naturales

   Ordenación de aguas

   Medio ambiente

   Ordenación de tierras

   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.

7. Library Resource

   

   African Convention on the Conservation of Nature and Natural Resources (Revised version).

   المعاهدة الافريقية للمحافظة على الطبيعة والموارد الطبيعية.

   Convenciones internacionales o Tratados

   Argelia, 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, África

   Tierra, Cambio Climático y Medio Ambiente

   Medio ambiente

   Pesca

   Ordenación de tierras

   Ordenación de recursos naturales

   The 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.