Soil organic carbon stocks in semi-arid West African drylands: implications for climate change adaptation and mitigation

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dc.creatorTondoh, Jérôme E.
dc.creatorOuédraogo, Issa
dc.creatorBayala, Jules
dc.creatorTamene, Lulseged D.
dc.creatorSila, Andrew M.
dc.creatorVågen, Tor-Gunnar
dc.creatorKalinganiré, Antoine
dc.date2016-07-04
dc.date2016-08-29T19:50:49Z
dc.date2016-08-29T19:50:49Z
dc.date.accessioned2026-06-27T14:34:17Z
dc.descriptionIn the West African drylands, SOC sequestration is seen as one of the prominent strategies to both enhance the resilience of agro-ecosystems and mitigate global greenhouse effects. However, there is a dearth of baseline data that impede the design of site-appropriate recommended management practices (RMPs) to improve and sustain SOC accrual. In this study, the Land Degradation Surveillance Framework (LDSF), a nested hierarchical sampling design was used to assess SOC stock and its spatial variability across the semi-arid zones of Ghana (Lambussie), Burkina Faso (Bondigui) and Mali (Finkolo). Soil samples were collected from three sites of 100 km2 stratified into 16 clusters and 160 plots and thereafter soil parameters were then analyzed using MIR spectroscopy. Regardless of soil strata, SOC storage with 95% confidence level in semi-arid landscapes potentially ranged between 112,200±14,000 and 253,000±34,000 Mg C corresponding to 411,400±51,333 Mg CO2-eq and 927,666.7±124,666.7 Mg CO2-eq in the entire study area. On the other hand, investigation on the potential of climate change mitigation through SOC revealed contrasted figures as accumulation rates in cultivated lands ranged from 0.04 to 0.18 Mg C ha-1 yr-1 and are balanced by higher depletion rates of -0.004 to - 0.73 Mg ha-1 yr-1. This indicates the potential of semiarid soils to store carbon through improved land management practices. Landscape study structured in cluster-level analysis revealed heterogeneity in the distribution of SOC stocks, a mandatory finer level analysis prior to effective decision-making about RMPs.
dc.identifierhttps://hdl.handle.net/10568/76627
dc.identifier.urihttp://hdl.handle.net/123456789/82030
dc.languageen
dc.publisherCopernicus GmbH
dc.rightsOpen Access
dc.sourceTondoh, Jérôme Ebagnerin; Ouédraogo, Issa; Bayala, Jules; Desta, Lulseged Tamene; Sila, Andrew; Vågen, Tor-Gunnar; Kalinganiré, Antoine. 2016. Soil organic carbon stocks in semi-arid West African drylands: implications for climate change adaptation and mitigation . Soil . Copernicus GmbH, 1-41 p.
dc.subjectagroecosystems
dc.subjectland use
dc.subjectresilience
dc.subjectcarbon sequestration
dc.subjectsoil fertility
dc.subjectland management
dc.subjectagroecosistemas
dc.subjectutilización de la tierra
dc.subjectresiliencia frente a impactos y crisis
dc.subjectsecuestro de carbono
dc.subjectfertilidad del suelo
dc.subjectordenación de tierras
dc.titleSoil organic carbon stocks in semi-arid West African drylands: implications for climate change adaptation and mitigation
dc.typePreprint

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