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Effects of Climate and Atmospheric Nitrogen Deposition on Early to Mid-Term Stage Litter Decomposition Across Biomes

2021-07-14Journal article Open access
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dc.contributor.authorKwon, TaeOh
dc.contributor.authorSerrano, Helena Cristina
dc.contributor.authorBranquinho, Cristina
dc.contributor.authorMorillas, Lourdes
dc.date.accessioned2022-01-08T12:34:48Z
dc.date.available2022-01-08T12:34:48Z
dc.date.issued2021-07-14
dc.descriptionHS and CB acknowledge FCT support to cE3c through UID/BIA/00329/2013, UID/BIA/00329/2019, and UIDB/00329/2020, and the project PORBIOTA - POCI-01- 0145-FEDER-022127.pt_PT
dc.description.abstractLitter decomposition is a key process for carbon and nutrient cycling in terrestrial ecosystems and is mainly controlled by environmental conditions, substrate quantity and quality as well as microbial community abundance and composition. In particular, the effects of climate and atmospheric nitrogen (N) deposition on litter decomposition and its temporal dynamics are of significant importance, since their effects might change over the course of the decomposition process. Within the TeaComposition initiative, we incubated Green and Rooibos teas at 524 sites across nine biomes. We assessed how macroclimate and atmospheric inorganic N deposition under current and predicted scenarios (RCP 2.6, RCP 8.5) might affect litter mass loss measured after 3 and 12 months. Our study shows that the early to mid-term mass loss at the global scale was affected predominantly by litter quality (explaining 73% and 62% of the total variance after 3 and 12 months, respectively) followed by climate and N deposition. The effects of climate were not litter-specific and became increasingly significant as decomposition progressed, with MAP explaining 2% and MAT 4% of the variation after 12 months of incubation. The effect of N deposition was litter-specific, and significant only for 12-month decomposition of Rooibos tea at the global scale. However, in the temperate biome where atmospheric N deposition rates are relatively high, the 12-month mass loss of Green and Rooibos teas decreased significantly with increasing N deposition, explaining 9.5% and 1.1% of the variance, respectively. The expected changes in macroclimate and N deposition at the global scale by the end of this century are estimated to increase the 12-month mass loss of easily decomposable litter by 1.1–3.5% and of the more stable substrates by 3.8–10.6%, relative to current mass loss. In contrast, expected changes in atmospheric N deposition will decrease the mid-term mass loss of high-quality litter by 1.4–2.2% and that of low-quality litter by 0.9–1.5% in the temperate biome. Our results suggest that projected increases in N deposition may have the capacity to dampen the climate-driven increases in litter decomposition depending on the biome and decomposition stage of substrate.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationKwon T, Shibata H, Kepfer-Rojas S, Schmidt IK, Larsen KS, Beier C, Berg B, Verheyen K, Lamarque J-F, Hagedorn F, Eisenhauer N, Djukic I and TeaComposition Network (inc. Branquinho C, Serrano HC, Morillas Lourdes) (2021) Effects of Climate and Atmospheric Nitrogen Deposition on Early to Mid-Term Stage Litter Decomposition Across Biomes. Front. For. Glob. Change 4:678480. doi: 10.3389/ffgc.2021.678480pt_PT
dc.identifier.doi10.3389/ffgc.2021.678480pt_PT
dc.identifier.issn2624-893X
dc.identifier.urihttp://hdl.handle.net/10451/50751
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontierspt_PT
dc.relationUID/BIA/00329/2019 (Centro de Ecologia, Evolução e Alterações Ambientais - cE3c)pt_PT
dc.relationUIDB/00329/2020 (Centro de Ecologia, Evolução e Alterações Ambientais - cE3c)pt_PT
dc.relationPOCI-01-0145-FEDER-022127 (PORBIOTA)pt_PT
dc.relation.publisherversionhttps://doi.org/10.3389/ffgc.2021.678480pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectlitter decompositionpt_PT
dc.subjecttea bagpt_PT
dc.subjectnitrogen depositionpt_PT
dc.subjectGreen teapt_PT
dc.subjectcarbon turnoverpt_PT
dc.subjectRooibos teapt_PT
dc.subjectTeaComposition initiativept_PT
dc.titleEffects of Climate and Atmospheric Nitrogen Deposition on Early to Mid-Term Stage Litter Decomposition Across Biomespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FBIA%2F00329%2F2013/PT
oaire.citation.conferencePlaceSwitzerlandpt_PT
oaire.citation.endPage18pt_PT
oaire.citation.issue678480pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleFrontiers in Forests and Global Changept_PT
oaire.citation.volume4pt_PT
oaire.fundingStream5876
person.familyNameKwon
person.familyNamede Matos Serras Cadete Serrano
person.familyNameBranquinho
person.familyNameMorillas
person.givenNameTaeOh
person.givenNameHelena Cristina
person.givenNameCristina
person.givenNameLourdes
person.identifierF-9251-2011
person.identifierB-3670-2008
person.identifier.ciencia-id9212-2EDC-D80C
person.identifier.ciencia-id801A-B46A-71BA
person.identifier.ciencia-idC81F-1F43-245C
person.identifier.orcid0000-0002-3938-5935
person.identifier.orcid0000-0003-3743-8084
person.identifier.orcid0000-0001-8294-7924
person.identifier.orcid0000-0002-9544-1188
person.identifier.scopus-author-id57208443225
person.identifier.scopus-author-id15923767100
person.identifier.scopus-author-id6603447018
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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