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  Amazon forest response to CO2 fertilization dependent on plant phosphorus acquisition

Fleischer, K., Rammig, A., Kauwe, M. G. D., Walker, A. P., Domingues, T. F., Fuchslueger, L., et al. (2019). Amazon forest response to CO2 fertilization dependent on plant phosphorus acquisition. Nature Geoscience, 12(9), 736-741. doi:10.1038/s41561-019-0404-9.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0004-6547-B Version Permalink: https://hdl.handle.net/21.11116/0000-000A-3F82-D
Genre: Journal Article

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 Creators:
Fleischer, Katrin, Author
Rammig, Anja, Author
Kauwe, Martin G. De, Author
Walker, Anthony P., Author
Domingues, Tomas F., Author
Fuchslueger, Lucia, Author
Garcia, Sabrina, Author
Goll, Daniel S., Author
Grandis, Adriana, Author
Jiang, Mingkai, Author
Haverd, Vanessa, Author
Hofhansl, Florian, Author
Holm, Jennifer A., Author
Kruijt, Bart, Author
Leung, Felix, Author
Medlyn, Belinda E., Author
Mercado, Lina M., Author
Norby, Richard J., Author
Pak, Bernard, Author
von Randow, Celso, Author
Quesada, Carlos A., AuthorSchaap, Karst J., AuthorValverde-Barrantes, Oscar J., AuthorWang, Ying-Ping, AuthorYang, Xiaojuan, AuthorZaehle, Sönke1, 2, Author           Zhu, Qing, AuthorLapola, David M., Author more..
Affiliations:
1Terrestrial Biosphere Modelling, Dr. Sönke Zähle, Department Biogeochemical Integration, Dr. M. Reichstein, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1938309              
2Terrestrial Biosphere Modelling, Dr. Sönke Zähle, Department Biogeochemical Integration, Prof. Dr. Martin Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497787              

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 Abstract: Global terrestrial models currently predict that the Amazon rainforest will continue to act as a carbon sink in the future, primarily
owing to the rising atmospheric carbon dioxide (CO2) concentration. Soil phosphorus impoverishment in parts of the
Amazon basin largely controls its functioning, but the role of phosphorus availability has not been considered in global model
ensembles—for example, during the Fifth Climate Model Intercomparison Project. Here we simulate the planned free-air CO2
enrichment experiment AmazonFACE with an ensemble of 14 terrestrial ecosystem models. We show that phosphorus availability
reduces the projected CO2-induced biomass carbon growth by about 50% to 79 ± 63 g C m−2 yr−1 over 15 years compared
to estimates from carbon and carbon–nitrogen models. Our results suggest that the resilience of the region to climate change
may be much less than previously assumed. Variation in the biomass carbon response among the phosphorus-enabled models
is considerable, ranging from 5 to 140 g C m−2 yr−1, owing to the contrasting plant phosphorus use and acquisition strategies
considered among the models. The Amazon forest response thus depends on the interactions and relative contributions of the
phosphorus acquisition and use strategies across individuals, and to what extent these processes can be upregulated under
elevated CO2.

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 Dates: 2019-08-052019-09
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: Other: BGC3114
DOI: 10.1038/s41561-019-0404-9
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Title: Nature Geoscience
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 12 (9) Sequence Number: - Start / End Page: 736 - 741 Identifier: ISSN: 1752-0894
CoNE: https://pure.mpg.de/cone/journals/resource/1752-0894