English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  The fate of carbon in a mature forest under carbon dioxide enrichment

Jiang, M., Medlyn, B. E., Drake, J. E., Duursma, R. A., Anderson, I. C., Barton, C. V. M., et al. (2020). The fate of carbon in a mature forest under carbon dioxide enrichment. Nature, 580(7802), 227-231. doi:10.1038/s41586-020-2128-9.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files
hide Files
:
BGC3102.pdf (Publisher version), 7MB
 
File Permalink:
-
Name:
BGC3102.pdf
Description:
-
OA-Status:
Visibility:
Restricted (Max Planck Institute for Biogeochemistry, MJBK; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-
:
BGC3102s1.pdf (Supplementary material), 2MB
 
File Permalink:
-
Name:
BGC3102s1.pdf
Description:
-
OA-Status:
Visibility:
Restricted (Max Planck Institute for Biogeochemistry, MJBK; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Jiang, M., Author
Medlyn, B. E., Author
Drake, J. E., Author
Duursma, R. A., Author
Anderson, I. C., Author
Barton, C. V. M., Author
Boer, M. M., Author
Carrillo, Y., Author
Castañeda-Gómez, L., Author
Collins, L., Author
Crous, K. Y., Author
De Kauwe, M. G. , Author
Emmerson, K. M., Author
Facey, S. L., Author
Gherlenda, A. N., Author
Gimeno, T. E., Author
Hasegawa, S., Author
Johnson, S. N., Author
Macdonald, C. A., Author
Mahmud, K., Author
Moore, B. D., AuthorNazaries, L., AuthorNielsen, U. N., AuthorNoh, N. J., AuthorOchoa-Hueso, R., AuthorPathare, V. S., AuthorPendall, E., AuthorPineiro, J., AuthorPowell, J. R., AuthorPower, S. A., AuthorReich, P. B., AuthorRenchon, A. A., AuthorRiegler, M., AuthorRymer, P., AuthorSalomón, R. L., AuthorSingh, B. K., AuthorSmith, B., AuthorTjoelker, M. G., AuthorWalker, J. K. M., AuthorWujeska-Klause, A., AuthorYang, J., AuthorZaehle, Sönke1, 2, Author           Ellsworth, D. S., 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              

Content

show
hide
Free keywords: -
 Abstract: Atmospheric carbon dioxide enrichment (eCO2) can enhance plant carbon uptake and growth, thereby providing an important negative feedback to climate change by slowing the rate of increase of the atmospheric CO2 concentration. While evidence gathered from young aggrading forests has generally indicated a strong CO2 fertilization effect on biomass growth, it is unclear whether mature forests respond to eCO2 in a similar way. In mature trees and forest stands, photosynthetic uptake has been found to increase under eCO2 without any apparent accompanying growth response, leaving an open question about the fate of additional carbon fixed under eCO2. Here, using data from the first ecosystem-scale Free-Air CO2 Enrichment (FACE) experiment in a mature forest, we constructed a comprehensive ecosystem carbon budget to track the fate of carbon as the forest responds to four years of eCO2 exposure. We show that, although the eCO2 treatment of ambient +150 ppm (+38%) induced a 12% (+247 gCm-2yr-1) increase in carbon uptake through gross primary production, this additional carbon uptake did not lead to increased carbon sequestration at the ecosystem level. Instead, the majority of the extra carbon was emitted back into the atmosphere via several respiratory fluxes, with increased soil respiration alone contributing ~50% of the total uptake surplus. Our results call into question the predominant thinking that the capacity of forests to act as carbon sinks will be generally enhanced under eCO2, and challenge the efficacy of climate mitigation strategies that rely on CO2 fertilization as a driver of increased carbon sinks in standing forests and afforestation projects.

Details

show
hide
Language(s):
 Dates: 2020-02-042020-04-082020-04-09
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: Other: BGC3102
DOI: 10.1038/s41586-020-2128-9
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Nature
  Abbreviation : Nature
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 580 (7802) Sequence Number: - Start / End Page: 227 - 231 Identifier: ISSN: 0028-0836
CoNE: https://pure.mpg.de/cone/journals/resource/954925427238