FIGURE 3.

Difference in canopy temperature (Δ T_canopy) of Stylosanthes capitata during the experiment. (A) Δ T_canopy between eCO₂aT–aCO₂aT plots. (B) Δ T_canopy between aCO₂eT–aCO₂aT plots. (C) Δ T_canopy between eCO₂eT–aCO₂aT plots. (D) Δ T_canopy between eCO₂eT–aCO₂eT plots. T_canopy was recorded every 15 min by Apogee infrared radiometers. Arrows indicate the point 2°C above the ambient canopy temperature that was set in warmed treatments. The missing values between days 35 and 37 after treatment are due to a dead datalogger battery on these days. Treatments: aCO₂aT (ambient [CO₂] and ambient temperature), eCO₂aT (elevated [CO₂] and ambient temperature), aCO₂eT (ambient [CO₂] and elevated temperature) and eCO₂eT (elevated [CO₂] and elevated temperature).