Many semiarid regions of Sub-Saharan Africa (SSA) are experiencing vast increases in human population pressure and urbanization. These augment the demand for agricultural products and have led to the expansion, intensification, and often closer integration of crop and livestock production systems...
Powell, J.M.
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Pearson, R.A.
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Hiernaux, Pierre H.Y.
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[Crop-livestock interactions in the West African drylands]
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Crop-livestock interactions in the West African drylands
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.
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[Spatial heterogeneity in Sahelian rangelands and resilience to drought and grazing]
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Spatial heterogeneity in Sahelian rangelands and resilience to drought and grazing
In this document ILCA proposes a set of six researchable issues pertaining to ILCA's three research areas that need to be investigated (three broad themes). A brief description of the researchable issues is presented. This includes economic and policy measures to improve the management of natural...
Fernández Rivera, S.
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Hiernaux, Pierre H.Y.
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Turner, M.
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Williams, Timothy O.
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[Ecological and economic linkages between the arid and semi-arid zones: The role of livestock]
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Ecological and economic linkages between the arid and semi-arid zones: The role of livestock
In the short term, grazing of a 40-ha fallow in the Sahel, Niger, by sheep and goats reduced the standing herbage mass in the wet season and increased its disappearance during the dry season. The effects of stocking rate (62.5 or 125 k g liveweight/ha) and the proportion of sheep in the mixture (...
Hiernaux, Pierre H.Y.
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Fernández Rivera, S.
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[Grazing effects of goat-sheep mixes on vegetation structure and productivity of old fallow in the Sahel]
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Grazing effects of goat-sheep mixes on vegetation structure and productivity of old fallow in the Sahel