Articles | Volume 19, issue 19
Atmos. Chem. Phys., 19, 12361–12375, 2019
https://doi.org/10.5194/acp-19-12361-2019

Special issue: The 10th International Carbon Dioxide Conference (ICDC10)...

Atmos. Chem. Phys., 19, 12361–12375, 2019
https://doi.org/10.5194/acp-19-12361-2019

Research article 07 Oct 2019

Research article | 07 Oct 2019

Contrasting effects of CO2 fertilization, land-use change and warming on seasonal amplitude of Northern Hemisphere CO2 exchange

Ana Bastos et al.

Data sets

Atmospheric CO2 Inversion, 1985-2016 C. Rödenbeck https://doi.org/10.17871/CarboScope-s85_v4.1

Atmospheric CO2 Inversion, 1976-2016 C. Rödenbeck https://doi.org/10.17871/CarboScope-s76_v4.1

Atmospheric CO2 Inversion, 1993-2016 C. Rödenbeck https://doi.org/10.17871/CarboScope-s93_v4.1

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Short summary
Here we show that land-surface models improved their ability to simulate the increase in the amplitude of seasonal CO2-cycle exchange (SCANBP) by ecosystems compared to estimates by two atmospheric inversions. We find a dominant role of vegetation growth over boreal Eurasia to the observed increase in SCANBP, strongly driven by CO2 fertilization, and an overall negative effect of temperature on SCANBP. Biases can be explained by the sensitivity of simulated microbial respiration to temperature.
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