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Figure 2

From: Causes of variation among rice models in yield response to CO2 examined with Free-Air CO2 Enrichment and growth chamber experiments

Figure 2

Simulated and observed yield and biomass. Grain yield and biomass under ambient [CO2] in (a) FACE and (b) SPAR experiments; % increase in yield and biomass in response to elevated [CO2] in (c) FACE and (d) SPAR experiments. Each bar represents average across different N treatments and years at two FACE sites left (Shizukuishi and Wuxi) and in the SPAR chamber experiments (Exp. 1, 2 and 3). Error bars represent the maximum and minimum values of each measurement or simulation. Data sets used for calibration are not included. For % increase in elevated [CO2] in the SPAR chambers (d), mean of values under 500 and 660 µmol mol−1 relative to ambient are presented. Comparison by treatment in the FACE experiments are detailed in Figures S2 and S3.

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