2016 2017 2018 2019
CO2 concentration increment relative to CK (μmol mol-1)
SI 33±7 62±12 107±14 134±18
CI 175±30 165±28 178±23 180±22
Daily air temperature (°C)
Tmean 27.8±3.9 27.6±4.2 27.7±3.6 27.2±3.1
Tmax 31.7±4.2 31.2±4.9 33.7±4.1 33.6±3.8
Tmin 24.4±3.9 24.4±4.0 23.3±4.1 22.5±3.4
Mean daily photosynthetic photon flux density (µmol m-2 s-1)
700±312 665±282 656±251 683±233