A Boundary Plane Approach to Map Hotspots for Achievable Soil Carbon Sequestration and Soil Fertility Improvement

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cg.contributor.affiliationInternational Center for Tropical Agriculture
cg.coverage.countryKenya
cg.coverage.iso3166-alpha2KE
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.creator.identifierKristin Persson: 0000-0003-2120-4486
cg.creator.identifierMats Söderström: 0000-0001-9946-0979
cg.creator.identifierRolf Sommer: 0000-0001-7599-9056
cg.creator.identifierMAYESSE DA SILVA: 0000-0002-3734-9586
cg.creator.identifierWuletawu Abera: 0000-0002-3657-5223
cg.identifier.doihttps://doi.org/10.3390/su11154038
cg.issn2071-1050
cg.issue15
cg.journalSustainability
cg.volume11
dc.contributor.authorPiikki, Kristin
dc.contributor.authorSöderström, Mats
dc.contributor.authorSommer, Rolf
dc.contributor.authorSilva, Mayesse Aparecida da
dc.contributor.authorMunialo, Sussy
dc.contributor.authorAbera, Wuletawu
dc.date.accessioned2019-07-30T20:39:27Zen
dc.date.available2019-07-30T20:39:27Zen
dc.identifier.urihttps://hdl.handle.net/10568/102387
dc.titleA Boundary Plane Approach to Map Hotspots for Achievable Soil Carbon Sequestration and Soil Fertility Improvementen
dcterms.abstractSoil organic carbon (SOC) sequestration is important in the global carbon cycle and an integral part of many initiatives and policies to mitigate climate change. For efficient targeting of measures leading to SOC sequestration, it is necessary to know the actual SOC content (%) and a realistic target SOC content (in contrast to the saturation content, which may not be easily achievable) under local biophysical and socioeconomic conditions. We developed a new method for the practical assessment of achievable SOC sequestration concerning soil texture based on a non-linear boundary plane approach, also applicable for mapping of SOC sequestration hotspots. The method was tested at two spatial scales (a 125 km2 catchment and a 4 km2 sub-area of that catchment) in a region in Western Kenya characterized by smallholder farming. Moreover, we assessed the associated benefits of increasing the SOC content from a crop production perspective and found significant correlations between SOC and other soil properties (pH, cation exchange capacity, and various plant-available macro- and micronutrients). This indicates a possible improvement in soil fertility when the SOC content is raised to the modeled target levels, which should be attainable without major changes in land use or agricultural systems.en
dcterms.accessRightsOpen Access
dcterms.available2019-07-25
dcterms.bibliographicCitationPiikki, Kristin; Söderström, Mats; Sommer, Rolf; Da Silva, Mayesse; Munialo, Sussy & Abera, Wuletawu (2019). A Boundary Plane Approach to Map Hotspots for Achievable Soil Carbon Sequestration and Soil Fertility Improvement. Sustainability, 11(15): 4038en
dcterms.extent11(15): 4038
dcterms.issued2019
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherMDPI
dcterms.subjectsoil organic carbonen
dcterms.subjectcarbon sequestrationen
dcterms.subjectsoil fertilityen
dcterms.typeJournal Article

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