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Title:Phosphorus limitation promotes soil carbon storage in a boreal forest exposed to long-term nitrogen fertilization
Authors:ID Richy, Etienne (Author)
ID Fort, Tania (Author)
ID Odriozola, Inaki (Author)
ID Kohout, Petr (Author)
ID Barbi, Florian (Author)
ID Martinović, Tijana (Author)
ID Tupek, Boris (Author)
ID Adamczyk, Bartosz (Author)
ID Lehtonen, Aleksi (Author)
ID Mäkipää, Raisa (Author)
ID Baldrian, Petr (Author)
Files:URL URL - Source URL, visit https://onlinelibrary.wiley.com/doi/full/10.1111/gcb.17516
 
.pdf PDF - Presentation file, download (10,37 MB)
MD5: 536005BE2E747CA17616DF3C6FC019F6
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo SciVie - Slovenian Forestry Institute
Abstract:Forests 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.
Keywords:carbon storage, microbial communities, boreal forest, fertilization
Publication status:Published
Publication version:Version of Record
Year of publishing:2024
Number of pages:str. 1-14
Numbering:Vol. 30, iss. 9 [article no. e17516]
PID:20.500.12556/DiRROS-21108 New window
UDC:630*1
ISSN on article:1757-1707
DOI:10.1111/gcb.17516 New window
COBISS.SI-ID:220238339 New window
Note:Nasl. z nasl. zaslona; Opis vira z dne 23. 12. 2024;
Publication date in DiRROS:23.12.2024
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Downloads:5
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Record is a part of a journal

Title:Global change biology : Bioenergy
Shortened title:GCB bioenerg.
Publisher:Wiley-Blackwell
ISSN:1757-1707
COBISS.SI-ID:517715481 New window

Document is financed by a project

Funder:EC - European Commission
Project number:101000289
Name:Holistic management practices, modelling and monitoring for European forest soils
Acronym:HoliSoils

Funder:AKA - Academy of Finland
Project number:330136
Name:The fate of soil organic matter in Northern ecosystems - missing pieces in the plant-soil-microbe interactions puzzle (NORTH-SOM)

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:shranjevanje ogljika, mikrobne združbe, borealni gozdovi, gnojenje


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