Greenhouse gas emissions from sheep excreta deposited onto tropical pastures in Kenya
| cg.authorship.types | CGIAR and advanced research institute | en |
| cg.contributor.affiliation | International Livestock Research Institute | en |
| cg.contributor.affiliation | Karlsruhe Institute of Technology | en |
| cg.contributor.affiliation | University of Aarhus | en |
| cg.contributor.affiliation | Agroscope | en |
| cg.contributor.donor | International Development Research Centre | en |
| cg.contributor.donor | European Union | en |
| cg.contributor.donor | CGIAR Trust Fund | en |
| cg.contributor.initiative | Livestock and Climate | en |
| cg.contributor.initiative | Low-Emission Food Systems | en |
| cg.coverage.country | Kenya | en |
| cg.coverage.iso3166-alpha2 | KE | en |
| cg.coverage.region | Africa | en |
| cg.coverage.region | Eastern Africa | en |
| cg.creator.identifier | Yuhao Zhu: 0000-0003-1759-6878 | en |
| cg.creator.identifier | Klaus Butterbach-Bahl: 0000-0001-9499-6598 | en |
| cg.creator.identifier | Lutz Merbold: 0000-0003-4974-170X | en |
| cg.creator.identifier | Sonja Leitner: 0000-0002-1276-8071 | en |
| cg.creator.identifier | Jesse Gakige: 0009-0009-5676-8856 | en |
| cg.howPublished | Formally Published | en |
| cg.identifier.doi | https://doi.org/10.1016/j.agee.2023.108724 | en |
| cg.isijournal | ISI Journal | en |
| cg.issn | 1873-2305 | en |
| cg.journal | Agriculture, Ecosystems & Environment | en |
| cg.place | Amsterdam, The Netherlands | en |
| cg.reviewStatus | Peer Review | en |
| cg.subject.actionArea | Resilient Agrifood Systems | en |
| cg.subject.actionArea | Systems Transformation | en |
| cg.subject.ilri | CLIMATE CHANGE | en |
| cg.subject.ilri | CROP-LIVESTOCK | en |
| cg.subject.ilri | GHG EMISSIONS | en |
| cg.subject.ilri | LIVESTOCK | en |
| cg.subject.ilri | SHEEP | en |
| cg.subject.ilri | SMALL RUMINANTS | en |
| cg.subject.impactArea | Climate adaptation and mitigation | en |
| cg.subject.sdg | SDG 13 - Climate action | en |
| cg.volume | 339 | en |
| dc.contributor.author | Zhu, Yuhao | en |
| dc.contributor.author | Butterbach-Bahl, Klaus | en |
| dc.contributor.author | Merbold, Lutz | en |
| dc.contributor.author | Oduor, Collins | en |
| dc.contributor.author | Gakige, Jesse K. | en |
| dc.contributor.author | Mwangi, Paul | en |
| dc.contributor.author | Leitner, Sonja | en |
| dc.date.accessioned | 2023-09-18T08:04:39Z | en |
| dc.date.available | 2023-09-18T08:04:39Z | en |
| dc.identifier.uri | https://hdl.handle.net/10568/131885 | |
| dc.title | Greenhouse gas emissions from sheep excreta deposited onto tropical pastures in Kenya | en |
| dcterms.abstract | To improve the estimate of greenhouse gas emissions (GHG) from tropical rangelands in sub-Saharan Africa, we measured GHG emissions from sheep excreta over two periods of 51 days on a Kenya rangeland. In addition, we measured GHG emissions from potential hotspots in the landscape linked to sheep grazing: overnight enclosures (“bomas”), where sheep are kept at night to protect them from theft and predators, the areas surrounding sheep bomas, and areas surrounding watering troughs. Results showed a short pulse of CO2 fluxes after sheep urine application and a rapid increase of CH4 fluxes following sheep dung application in both rainy and dry season. However, only small increases of N2O fluxes were observed after dung and urine applications compared to controls without excreta. Elevated N2O fluxes mainly coincided with heavy rainfall. Overall, N2O emission factors (EFs) did not vary across excreta type or seasons, but mean N2O EFs for dung (0.01%) and urine patches (0.02%) were only one tenth of the default EFs from the 2019 IPCC Refinement for dry climate. We did, however, find that bomas and watering troughs are sites of herd concentration that are important sources of GHG emissions in the landscape, and that emissions in these locations can remain elevated for months to years, especially when soil moisture is high. This study contributes to more robust estimates of GHG emissions from African livestock systems, which are fundamental to develop targeted mitigation strategies. | en |
| dcterms.accessRights | Open Access | en |
| dcterms.audience | Academics | en |
| dcterms.audience | CGIAR | en |
| dcterms.audience | Donors | en |
| dcterms.audience | NGOs | en |
| dcterms.audience | Scientists | en |
| dcterms.available | 2023-09-06 | en |
| dcterms.bibliographicCitation | Zhu, Y., Butterbach-Bahl, K., Merbold, L., Oduor, C.O., Gakige, J.K., Mwangi, P. and Leitner, S.M. 2023. Greenhouse gas emissions from sheep excreta deposited onto tropical pastures in Kenya. Agriculture, Ecosystems and Environment 359:108724. | en |
| dcterms.issued | 2024-01 | en |
| dcterms.language | en | en |
| dcterms.license | CC-BY-NC-4.0 | en |
| dcterms.publisher | Elsevier | en |
| dcterms.subject | nitrous oxide | en |
| dcterms.subject | livestock manure | en |
| dcterms.subject | urine | en |
| dcterms.subject | greenhouse gas emissions | en |
| dcterms.subject | pastures | en |
| dcterms.subject | sheep | en |
| dcterms.type | Journal Article | en |
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