BibTex format
@article{Keenan:2021:10.1038/s41586-021-04096-9,
author = {Keenan, T and Luo, X and De, Kauwe MG and Medlyn, B and Prentice, IC and Stocker, B and Smith, N and Terrer, C and Wang, H and Zhang, Y and Zhou, S},
doi = {10.1038/s41586-021-04096-9},
journal = {Nature},
pages = {253--258},
title = {A constraint on historic growth in global photosynthesis due to rising CO2},
url = {http://dx.doi.org/10.1038/s41586-021-04096-9},
volume = {600},
year = {2021}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - The global terrestrial carbon sink is increasing1,2,3, offsetting roughly a third of anthropogenic CO2 released into the atmosphere each decade1, and thus serving to slow4 the growth of atmospheric CO2. It has been suggested that a CO2-induced long-term increase in global photosynthesis, a process known as CO2 fertilization, is responsible for a large proportion of the current terrestrial carbon sink4,5,6,7. The estimated magnitude of the historic increase in photosynthesis as result of increasing atmospheric CO2 concentrations, however, differs by an order of magnitude between long-term proxies and terrestrial biosphere models7,8,9,10,11,12,13. Here we quantify the historic effect of CO2 on global photosynthesis by identifying an emergent constraint14,15,16 that combines terrestrial biosphere models with global carbon budget estimates. Our analysis suggests that CO2 fertilization increased global annual photosynthesis by 11.85 ± 1.4%, or 13.98 ± 1.63 petagrams carbon (mean ± 95% confidence interval) between 1981 and 2020. Our results help resolve conflicting estimates of the historic sensitivity of global photosynthesis to CO2, and highlight the large impact anthropogenic emissions have had on ecosystems worldwide.
AU - Keenan,T
AU - Luo,X
AU - De,Kauwe MG
AU - Medlyn,B
AU - Prentice,IC
AU - Stocker,B
AU - Smith,N
AU - Terrer,C
AU - Wang,H
AU - Zhang,Y
AU - Zhou,S
DO - 10.1038/s41586-021-04096-9
EP - 258
PY - 2021///
SN - 0028-0836
SP - 253
TI - A constraint on historic growth in global photosynthesis due to rising CO2
T2 - Nature
UR - http://dx.doi.org/10.1038/s41586-021-04096-9
UR - https://www.nature.com/articles/s41586-021-04096-9
UR - http://hdl.handle.net/10044/1/92603
VL - 600
ER -