CO₂ fertilization of terrestrial photosynthesis inferred from site to global scales

• Published in: Proceedings of the National Academy of Sciences - PNAS Vol. 119; no. 10; pp. 1 - 8
• Main Authors: Chen, Chi, Riley, William J., Prentice, I. Colin, Keenan, Trevor F.
• Format: Journal Article
• Language: English
• Published: Washington National Academy of Sciences 08.03.2022
• Subjects: Annual variations; Atmospheric models; BASIC BIOLOGICAL SCIENCES; carbon and water coupling; Carbon cycle; Carbon dioxide; CO2 fertilization effect; Computer networks; Coniferous forests; Fertilization; Fluid flow; GPP; Hydraulics; Optimization; optimization theory; Photosynthesis; Physical Sciences; Primary production; Satellite observation; Soil moisture; Specific humidity

Global photosynthesis is increasing with elevated atmospheric CO₂ concentrations, a response known as the CO₂ fertilization effect (CFE), but the key processes of CFE are not constrained and therefore remain uncertain. Here, we quantify CFE by combining observations from a globally distributed netwo...