A simulation-based analysis of productivity and soil carbon in response to time-controlled rotational grazing in the West African Sahel region

dc.contributor.authorBadini, Oumaren
dc.contributor.authorStöckle, C. O.en
dc.contributor.authorJones, J. W.en
dc.contributor.authorNelson, R.en
dc.contributor.authorKodio, Amadouen
dc.contributor.authorKeita, Moussaen
dc.contributor.departmentSustainable Agriculture and Natural Resource Management (SANREM) Knowledgebaseen
dc.coverage.spatialnorth central Malien
dc.coverage.spatialMopti Regionen
dc.coverage.temporal2001 - 2003en
dc.descriptionMetadata only recorden
dc.description.abstractIn the Sahel region of West Africa, the traditional organization of the population and the grazing land avoided overexploitation of pastures. Since independence in the 1960s, grazing lands have been opened to all without specific guidance, and the vulnerability of the pastures to degradation has increased. Rotational grazing is postulated as a possible solution to provide higher pasture productivity, higher animal loads per unit land, and perhaps improved soil carbon storage. The objective of this study was to conduct a simulation-based assessment of the impact of rotational grazing management on pasture biomass production, grazing efficiency, animal grazing requirement satisfaction, and soil carbon storage in the Madiama Commune, Mali. The results showed that grazing intensity is the primary factor influencing the productivity of annual pastures and their capacity to provide for animal grazing requirements. Rotating the animals in paddocks is a positive practice for pasture protection that showed advantage as the grazing pressure increased. Increasing the size of the reserve biomass not available for grazing, which triggers the decision of taking the animals off the field, provided better pasture protection but reduced animal grazing requirements satisfaction. In terms of soil carbon storage, all management scenarios led to reduction of soil carbon at the end of the 50-year simulation periods, ranging between 4% and 5% of the initial storage. The differences in reduction as a function of grazing intensity were of no practical significance in these soils with very low organic matter content, mostly resistant to decomposition.en
dc.description.notesSysCoor-2 (Farm/Enterprise)en
dc.identifier.citationAgricultural Systems 94(1): 87-96en
dc.publisherElsevier Ltd.en
dc.rightsIn Copyrighten
dc.rights.holderCopyright 2006 Elsevier Ltd.en
dc.subjectCarbon sequestrationen
dc.subjectControlled grazingen
dc.subjectSemiarid zonesen
dc.subjectPasture managementen
dc.subjectRotational grazingen
dc.subjectLivestock managementen
dc.subjectSoil organic matteren
dc.subjectGrazing systemsen
dc.subjectRange managementen
dc.subjectWest Africaen
dc.subjectSoil carbon storageen
dc.subjectField Scaleen
dc.titleA simulation-based analysis of productivity and soil carbon in response to time-controlled rotational grazing in the West African Sahel regionen