Biochar Enhances Nitrous Oxide Reduction in Acidic but Not in Near-Neutral pH Soil

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dc.contributor.authorPereira, Engil Isadora Pujol
dc.contributor.authorLechat, Jerome
dc.contributor.authorConz, Rafaela Feola
dc.contributor.authorCardoso, Abmael da Silva [UNESP]
dc.contributor.authorSix, Johan
dc.contributor.institutionUniv Texas Rio Grande Valley
dc.contributor.institutionSwiss Fed Inst Technol
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2020-12-10T17:04:29Z
dc.date.available2020-12-10T17:04:29Z
dc.date.issued2019-12-01
dc.description.abstractWe quantified nitrous oxide (N2O) fluxes and total denitrification (N2O + N-2) in an acidic (Ferralsol) and a near-neutral pH soil (Cambisol) to determine whether biochar's alkalinization effect could be the mechanism inducing potential reductions in N2O fluxes. In Ferralsol, decreases in N2O emissions and in the N2O to N2O + N-2 ratio were observed in both biochar and lime treatments. In Cambisol, neither biochar nor lime decreased N2O emissions, despite significantly increasing soil pH. The abundance and community structure of nosZ gene-bearing microorganisms indicated that gene abundances did not explain biochar effects, but a higher diversity of nosZ gene-bearing microorganisms correlated to lower total denitrification. Overall, our results suggest that biochar's potential to decrease N2O emissions, through soil alkalinization, may be more effective in acidic soils.en
dc.description.affiliationUniv Texas Rio Grande Valley, Sch Earth Environm & Marine Sci, 1201 W Univ, Edinburg, TX 78539 USA
dc.description.affiliationSwiss Fed Inst Technol, Dept Environm Syst Sci, Swiss Fed Inst Technol, Univ Str 2, CH-8092 Zurich, Switzerland
dc.description.affiliationSao Paulo State Univ, Sch Agr & Vet, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Sch Agr & Vet, BR-14884900 Jaboticabal, SP, Brazil
dc.description.sponsorshipPlant Fellows Program (FP7 Marie Curie Actions)
dc.description.sponsorshipIdPlant Fellows Program (FP7 Marie Curie Actions): GA-2014-267423
dc.format.extent6
dc.identifierhttp://dx.doi.org/10.3390/soilsystems3040069
dc.identifier.citationSoil Systems. Basel: Mdpi, v. 3, n. 4, 6 p., 2019.
dc.identifier.doi10.3390/soilsystems3040069
dc.identifier.urihttp://hdl.handle.net/11449/195096
dc.identifier.wosWOS:000505592400015
dc.language.isoeng
dc.publisherMdpi
dc.relation.ispartofSoil Systems
dc.sourceWeb of Science
dc.subjectamendments
dc.subjectdenitrification
dc.subjectqPCR
dc.subjectT-RFLP
dc.subjectFerralsol
dc.subjectCambisol
dc.titleBiochar Enhances Nitrous Oxide Reduction in Acidic but Not in Near-Neutral pH Soilen
dc.typeArtigo
dcterms.rightsHolderMdpi

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