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Phosphorus limitation promotes soil carbon storage in a boreal forest exposed to long‐term nitrogen fertilization

dc.contributor.authorRichy, Etienne
dc.contributor.authorFort, Tania
dc.contributor.authorOdriozola, Inaki
dc.contributor.authorKohout, Petr
dc.contributor.authorBarbi, Florian
dc.contributor.authorMartinovic, Tijana
dc.contributor.authorTupek, Boris
dc.contributor.authorAdamczyk, Bartosz
dc.contributor.authorLehtonen, Aleksi
dc.contributor.authorMäkipää, Raisa
dc.contributor.authorBaldrian, Petr
dc.contributor.departmentid4100110510
dc.contributor.departmentid4100311110
dc.contributor.departmentid4100310610
dc.contributor.departmentid4100310610
dc.contributor.orcidhttps://orcid.org/0000-0003-4286-9508
dc.contributor.orcidhttps://orcid.org/0000-0003-1388-0388
dc.contributor.orcidhttps://orcid.org/0000-0003-3146-4425
dc.contributor.organizationLuonnonvarakeskus
dc.date.accessioned2024-11-14T08:52:22Z
dc.date.accessioned2025-05-28T08:32:10Z
dc.date.available2024-11-14T08:52:22Z
dc.date.issued2024
dc.description.abstractForests play a crucial role in global carbon cycling by absorbing and storing significant amounts of atmospheric carbon dioxide. Although boreal forests contribute to approximately 45% of the total forest carbon sink, tree growth and soil carbon sequestration are constrained by nutrient availability. Here, we examine if long-term nutrient input enhances tree productivity and whether this leads to carbon storage or whether stimulated microbial decomposition of organic matter limits soil carbon accumulation. Over six decades, nitrogen, phosphorus, and calcium were supplied to a Pinus sylvestris-dominated boreal forest. We found that nitrogen fertilization alone or together with calcium and/or phosphorus increased tree biomass production by 50% and soil carbon sequestration by 65% compared to unfertilized plots. However, the nonlinear relationship observed between tree productivity and soil carbon stock across treatments suggests microbial regulation. When phosphorus was co-applied with nitrogen, it acidified the soil, increased fungal biomass, altered microbial community composition, and enhanced biopolymer degradation capabilities. While no evidence of competition between ectomycorrhizal and saprotrophic fungi has been observed, key functional groups with the potential to reduce carbon stocks were identified. In contrast, when nitrogen was added without phosphorus, it increased soil carbon sequestration because microbial activity was likely limited by phosphorus availability. In conclusion, the addition of nitrogen to boreal forests may contribute to global warming mitigation, but this effect is context dependent.
dc.description.vuosik2024
dc.format.bitstreamtrue
dc.format.pagerange14 p.
dc.identifier.citationHow to cite: Richy, E., Fort, T., Odriozola, I., Kohout, P., Barbi, F., Martinovic, T., Tupek, B., Adamczyk, B., Lehtonen, A., Mäkipää, R., & Baldrian, P. (2024). Phosphorus limitation promotes soil carbon storage in a boreal forest exposed to long-term nitrogen fertilization. Global Change Biology, 30, e17516. https://doi.org/10.1111/gcb.17516
dc.identifier.olddbid497999
dc.identifier.oldhandle10024/555427
dc.identifier.urihttps://jukuri.luke.fi/handle/11111/14267
dc.identifier.urlhttps://doi.org/10.1111/gcb.17516
dc.identifier.urnURN:NBN:fi-fe2024111492434
dc.language.isoen
dc.okm.avoinsaatavuuskytkin1 = Avoimesti saatavilla
dc.okm.corporatecopublicationei
dc.okm.discipline1172
dc.okm.internationalcopublicationon
dc.okm.julkaisukanavaoa2 = Osittain avoimessa julkaisukanavassa ilmestynyt julkaisu
dc.okm.selfarchivedon
dc.publisherWiley-Blackwell
dc.relation.articlenumbere17516
dc.relation.doi10.1111/gcb.17516
dc.relation.ispartofseriesGlobal change biology
dc.relation.issn1354-1013
dc.relation.issn1365-2486
dc.relation.numberinseries9
dc.relation.volume30
dc.rightsCC BY 4.0
dc.source.identifierhttps://jukuri.luke.fi/handle/10024/555427
dc.subjectboreal forest ecosystem
dc.subjectfertilization
dc.subjectmicrobial community composition
dc.subjectmicrobial degradation
dc.subjectnutrient limitation
dc.subjectsoil carbon storage
dc.subjectstructural equation modeling
dc.subjecttree woody biomass
dc.teh41007- 00213300
dc.titlePhosphorus limitation promotes soil carbon storage in a boreal forest exposed to long‐term nitrogen fertilization
dc.typepublication
dc.type.okmfi=A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä|sv=A1 Originalartikel i en vetenskaplig tidskrift|en=A1 Journal article (refereed), original research|
dc.type.versionfi=Publisher's version|sv=Publisher's version|en=Publisher's version|

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