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Autor: Grollier, C

Estern Colombia, the Llanos, is constituted of broad grass formations. These big expanses of savannahs present a huge potential for extensive bovine breeding. Unfortunately, these natural pastures have a low productivity and a feeble quality, due to low fertility soils with a deficiency in phosph...


Grollier, C[Caracterisation des savanes d`une region des Llanos Orientaux de Colombie : Memoire de fin d`etudes, Cali, Colombie du 26 juin 1994 au 7 novembre 1994]Caracterisation des savanes d`une region des Llanos Orientaux de Colombie : Memoire de fin d`etudes, Cali, Colombie du 26 juin 1994 au 7 novembre 1994

Documents ecologiques comportant un rapport d'activite a Niono du 15 Septembre 1976 au 15 Decembre 1976, un rapport de consultant sur la mise au point des connaissance acquises depuis 50 ans sur la zone d'inondation et un rapport de mission dans la region de Mopti. Analyse les releves de vegetati...


International Livestock Centre for Africa[Documents ecologiques]Documents ecologiques
Diarra, L.Cisse, M.I.Hiernaux, Pierre H.Y.[Evolution de la vegetation sahelienne apres la secheresse. Bilan du suivi des sites du Gourma en 1985]Evolution de la vegetation sahelienne apres la secheresse. Bilan du suivi des sites du Gourma en 1985
Hiernaux, Pierre H.Y.Diarra, L.[Application de la teledetection au suivi de l'evolution de la vegetation sahelienne. Bilan des activites du programme du CIPEA dans le Gourma en 1986 et des analyses de ces donnees faites en 1987]Application de la teledetection au suivi de l'evolution de la vegetation sahelienne. Bilan des activites du programme du CIPEA dans le Gourma en 1986 et des analyses de ces donnees faites en 1987
Autor: Corra, M.

Description et quantification de l'etat des parcours extensifs du Sidamo en Ethiopie, avec accent partic. sur les parametres de definition de la formation vegetale, ainsi que sur les parametres ecologiques du milieu.


Corra, M.[Resultats de travaux de terrain sur la vegetation, la flore et l'ecologie des paturages extensifs du Sidamo (S.O.R.D.U.)]Resultats de travaux de terrain sur la vegetation, la flore et l'ecologie des paturages extensifs du Sidamo (S.O.R.D.U.)

This paper describes the establishment and Development of the first indigenous cattle breed improvement endeavors in Ethiopia at the Adami Tulu and Abernossa Cattle Multiplication and Improvement Center, in the Rift Valley. It is intended to analyse and document the activities of the center and u...


Tegegne, Azage[Lessons learned from the Boran Cattle Improvement Programme at Adami Tulu and Abernossa Cattle Multiplication and Improvement Centre in Ethiopia]Lessons learned from the Boran Cattle Improvement Programme at Adami Tulu and Abernossa Cattle Multiplication and Improvement Centre in Ethiopia
Autor: Desta, S.

The pastoral areas of Ethiopia are one of the most drought-vulnerable with chronic food deficiencies between 1980-1 and 1999-2000 these areas suffered 3 major droughts. In all droughts the Borana pastoralists lost 35-67 percent of their livestock. The position of the southern Ethiopian rangelands...


Desta, S.[Pastoralism and natural resource management: The case of the pastoral Borana in southern Ethiopia]Pastoralism and natural resource management: The case of the pastoral Borana in southern Ethiopia

In studies of 25 rangeland sites selected along the S.-N. bioclimatic gradient and on the main soil types in the Gourma (Sahel, Mali), herbage cover, standing mass and botanical composition were measured in relation to seasonality of grazing and grazing intensity. When different sites were compar...


Hiernaux, Pierre H.Y.[Spatial heterogeneity in Sahelian rangelands and resilience to drought and grazing]Spatial heterogeneity in Sahelian rangelands and resilience to drought and grazing
Autor: Coppock, D.L.

This paper reviews research on aspects of vegetation change and pastoral population dynamics in the southern Ethiopian rangelands during the 1980s and relate these findings to the debate on equilibrial versus non-equilibrial patterns of pastoral ecosystem dynamics. Examines pastoral dynamics and ...


Coppock, D.L.[Vegetation and pastoral dynamics in the southern Ethiopian rangelands: Implications for theory and management]Vegetation and pastoral dynamics in the southern Ethiopian rangelands: Implications for theory and management

Presents results of a study on trees and shrubs of a Sahelian site in Senegal, w. respect to aboveground biomass, productivity and consumption by livestock. Discusses the impact of the 1972 drought on various plant zones of the area.


Bille, Jean-Claude[Woody forage species in the Sahel: Their biology and use]Woody forage species in the Sahel: Their biology and use

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