Limits of agricultural greenhouse gas calculators to predict soil N2O and CH4 fluxes in tropical agriculture

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dc.creatorRichards, Meryl B.
dc.creatorMetzel, Ruth
dc.creatorChirinda, Ngonidzashe
dc.creatorLy, Proyuth
dc.creatorNyamadzawo, George
dc.creatorVu, Quynh Duong
dc.creatorNeergaard, Andreas de
dc.creatorOelofse, Myles
dc.creatorWollenberg, Eva Karoline
dc.creatorKeller, Emma
dc.creatorMalin, Daniella
dc.creatorOlesen, Jørgen E.
dc.creatorHillier, Jonathan
dc.creatorRosenstock, Todd S.
dc.date2016-05-20
dc.date2016-05-24T19:07:47Z
dc.date2016-05-24T19:07:47Z
dc.date.accessioned2026-06-27T14:39:49Z
dc.descriptionDemand for tools to rapidly assess greenhouse gas impacts from policy and technological change in the agricultural sector has catalyzed the development of ‘GHG calculators’— simple accounting approaches that use a mix of emission factors and empirical models to calculate GHG emissions with minimal input data. GHG calculators, however, rely on models calibrated from measurements conducted overwhelmingly under temperate, developed country conditions. Here we show that GHG calculators may poorly estimate emissions in tropical developing countries by comparing calculator predictions against measurements from Africa, Asia, and Latin America. Estimates based on GHG calculators were greater than measurements in 70% of the cases, exceeding twice the measured flux nearly half the time. For 41% of the comparisons, calculators incorrectly predicted whether emissions would increase or decrease with a change in management. These results raise concerns about applying GHG calculators to tropical farming systems and emphasize the need to broaden the scope of the underlying data.
dc.identifierhttps://hdl.handle.net/10568/74313
dc.identifier.urihttp://hdl.handle.net/123456789/84795
dc.languageen
dc.publisherSpringer
dc.rightsOpen Access
dc.sourceRichards MB, Metzel R, Chirinda N, Ly P, Nyamadzawo G, Vu QD, de Neergaard A, Oelofse M, Wollenberg E, Keller E, Malin D, Olesen JE, Hillier J, Rosenstock TS. 2016. Limits of agricultural greenhouse gas calculators to predict soil N20 and CH4 fluxes in tropical agriculture. Scientific Reports 6:26279.
dc.subjectgreenhouse gas
dc.subjectsoil
dc.subjectclimate change
dc.subjectagriculture
dc.subjectfood security
dc.subjectmitigation
dc.titleLimits of agricultural greenhouse gas calculators to predict soil N2O and CH4 fluxes in tropical agriculture
dc.typeJournal Article

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Centro Internacional de Agricultura Tropical (CIAT)