Amazonian understory forests change phosphorus acquisition strategies under elevated CO2
caused a significant decline in soil organic P. Our findings suggest that eCO₂ intensifies competition for P between plant roots and soil microorganisms, leading to changes in litter and soil P pools and exacerbating already strong nutrient constraints. Such spatially divergent adjustments in root nutrient acquisition strategies may critically regulate plant soil C and P coupling and should be incorporated into assessments of Amazon forest resilience under future climate change.
Authors
- Lara Siebert Silva
- Iain P. Hartley (ORCID: https://orcid.org/0000-0002-9183-6617)
- Yago R. Santos
- Katrin Fleischer (ORCID: https://orcid.org/0000-0002-9093-9526)
- Raffaello Di Ponzio (ORCID: https://orcid.org/0000-0002-7527-3594)
- Jéssica Schmeisk Rosa (ORCID: https://orcid.org/0000-0001-8286-8521)
- Florian Hofhansl (ORCID: https://orcid.org/0000-0003-0073-0946)
- R.J. Norby
- Gyovanni Ribeiro
- Bárbara Brum (ORCID: https://orcid.org/0000-0002-8421-3200)
- Izabela Aleixo (ORCID: https://orcid.org/0000-0001-9220-8965)
- Lucia Fuchslueger (ORCID: https://orcid.org/0000-0002-9615-4439)
- Crisvaldo Souza (ORCID: https://orcid.org/0000-0003-3759-9814)
- Maria Pires Martins (ORCID: https://orcid.org/0000-0001-8094-1879)
- Amanda Damasceno
- Laynara F. Lugli (ORCID: https://orcid.org/0000-0001-8404-4841)
- Alacimar Viana Guedes (ORCID: https://orcid.org/0000-0002-1668-6508)
- Leonardo Ramos de Oliveira (ORCID: https://orcid.org/0009-0008-7630-172X)
- Anna C. M. Moraes
- Vanessa R. Ferrer
- Gabriela Ushida (ORCID: https://orcid.org/0000-0002-6077-6770)
- Fabrício Baccaro
- Ana Caroline Miron
- Cilene Palheta
- Bruno Takeshi T. Portela
- Iokanam S. Pereira
- David M. Lapola
- Sabrina Garcia (ORCID: https://orcid.org/0000-0001-7052-5257)
- Anja Rammig (ORCID: https://orcid.org/0000-0001-5425-8718)
- Carine M. Cola (ORCID: https://orcid.org/0000-0001-5208-9463)
- Flavia D. Santana (ORCID: https://orcid.org/0000-0002-3523-2456)
- Oscar J. Valverde-Barrantes
- Juliane G. Menezes
- Carlos A. Quesada
- Tomas F. Domingues (ORCID: https://orcid.org/0000-0003-2857-9838)
- Nathielly P. Martins (ORCID: https://orcid.org/0000-0002-2501-747X)
Institutions
- Universidade Federal de Minas Gerais (BR)
- Oak Ridge National Laboratory (US)
- University of Vienna (AT)
- International Institute for Applied Systems Analysis (AT)
- Universidade de Ribeirão Preto (BR)
- Universität Hamburg (DE)
- Universidade de São Paulo (BR)
- Universidade Estadual de Campinas (UNICAMP) (BR)
- Instituto Nacional de Pesquisas da Amazônia (BR)
- Florida International University (US)
- University of Exeter (GB)
- Instituto Chico Mendes de Conservação da Biodiversidade (BR)
- SUPERA Park of Innovation and Technology of Ribeirão Preto (BR)
- Universidade Federal do Amazonas (BR)
- Technical University of Munich (DE)
- University of Birmingham (GB)
- Vrije Universiteit Amsterdam (NL)
- Wageningen University & Research (NL)
Publication Details
- Journal
- Nature Communications
- Published
- 2026-04-28
- DOI
- https://doi.org/10.1038/s41467-026-72098-0
- Primary Topic
- Soil Carbon and Nitrogen Dynamics
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Alexander von Humboldt-Stiftung
- Government of the United Kingdom
- European Commission
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Instituto Nacional de Pesquisas da Amazônia
- International Institute for Applied Systems Analysis
- Instituto Serrapilheira
- Brazilian Biodivesity Fund