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. 2021 Dec 6;380(2215):20200446. doi: 10.1098/rsta.2020.0446

Table 2.

Amazon tree fluxes (Tg CH4 yr−1) averaged between years 2000 and 2009. Estimates are given for different JULES hydrology tuning parameter fexp values (electronic supplementary material). Fsfc and Fsub are the inundated (WT at or above the soil surface) and riparian (WT below the soil surface) tree fluxes, respectively. Ftot is the total tree flux (Fsfc + Fsub). ‘CI’ represents results when using the 95% confidence intervals in tree flux fit, with gradients and intercepts: M = 1.51 + 0.17, C = 3.65–0.26 and M = 1.51–0.17, C = 3.59 + 0.26. Similarly, ‘s.d.’ represents the standard deviation in the fit.

tuning parameter Fsub Fsfc Ftot = Fsub + Fsfc %Fsub/Ftot
fexp = 1 (ctl) 2.78 16.35 19.14 14.5
fexp = 1 lower CI 2.16 12.66 14.83 14.6
fexp = 1 upper CI 3.58 21.13 24.71 14.5
fexp = 1 − s.d. 2.45 14.36 16.81 14.6
fexp = 1 + s.d. 3.16 18.63 21.79 14.5
fexp = 0.5 2.37 13.94 16.31 14.5
fexp = 0.75 2.63 15.47 18.10 14.5
fexp = 1.5 2.99 17.52 20.52 14.6
fexp = 2.0 3.19 18.46 21.64 14.7