Report of the Workshop on Tenure Systems and Desertification in Africa
Zukunft fuer die Natur im Gelderse - Poort - Gebiet : oekologische Beurteilung des Projektes "De Gelderse Poort" in Deutschland und den Niederlanden
Multi-scale characterization of inland valley agro-ecosystems in West Africa.
Inland valleys are defined as the upper reaches of river systems. These include valley bottoms and minor floodplains,their hydromorphic fringes and upland slopes and crests. These occupy 22-52 million ha of land in W. Africa and although of good agricultural potential are only marginally used. An agro-ecological characterization developed in the Cte d'Ivoire, is outlined on 4 levels: macro (1:1 000 000-1:5 000 000), reconnaissance (1:100 000-1:250 000), semi-detailed (1:25 000-1:50 000) and detailed (1:5000-10 000).
Desertification Convention Essential for Food Security
The deterioration of land resources in the world's arid and semi-arid regions is one of the gravest problems facing our planet and its people. Desertification, broadly defined, is one of the principal barriers to sustainable food security and sustainable livelihoods in our world today. It is not a future global threat; it is a devastating day-to-day local reality.
Regulations of the Ningxia Hui Autonomous Region on Protection of Agricultural Environment.
With a view to protect and improve the agricultural environment, to prevent pollution and protect ecosystem, the Regulations are formulated. The agricultural environment is defined as including land, water for agricultural purposes, air and other factors which have an impact on the survival and development of agricultural resources.The purpose of these Regulations is to protect and improve agricultural environment, prevent and control agricultural environmental pollution and ecological destruction, rationally develop and utilize agricultural natural resources.
Développement des terres arides et lutte contre la désertification: Etude bibliographique des expériences des pays de la CEI
Land degradation in south Asia: Its severity, causes and effects upon the people
Forest research
This issue of Unasylva examines a number of facets of forestry research, emphasizing needs for and efforts made towards strengthening national capability in the developing countries.
L'évolution du rôle des institutions forestières
Ce numro d'Unasylva est la suite logique du n 175 (Politiques et lgislations forestires) o l'on soulignait que, dans l'laboration de politiques et de lgislations nouvelles et pour un dveloppement durable des ressources forestires, le processus dynamique et participatif doit s'accompagner d'une rforme et d'un renforcement des institutions gouvernementales et non gouvernementales appeles jouer un rle majeur dans la mise en uvre de ces politiques. On passe donc en revue ici les changements institutionnels au secteur forestier oprs dans un certain nombre de pays.