Table 1.

Standard JULES parameters used and implications for R _d,25 calculation

Variable	Name in JULES model, or derived quantity, (and units)	Broadleaf tree	Needleleaf tree	Shrubs	C3 grass	C4 grass
$n_{\mathrm{l}0}$	NL0 (kg N (kg C)−1)	0.0369	0.0235	0.0349	0.0480	0.0238
$n_{\mathrm{e}}$	NEFFC3 or NEFFC4 (mol CO2 m−2 s−1 kg C (kg N)−1)	0.0008	0.0008	0.0008	0.0008	0.0004
V cmax,25	From parameters above (μmol CO2 m−2 s−1)	36.8	26.4	48.0	58.4	24.0
$f_{\mathrm{dr}}$	FDC3 or FDC4 (Dimensionless)	0.015	0.015	0.015	0.015	0.025
R d,25	From Eqns above (μmol CO2 m−2 s−1), but before division by the constraints in denominator [(1 + exp(0.3(13.0-T l))) × (1 + exp(0.3(T l-36.0)))]	0.4428	0.282	0.4188	0.576	0.238
Final R d,25	With suppressing constraints from denominator calculated at T l = 25.0	0.4157	0.2647	0.3932	0.5407	0.2234

The standard parameters (Methods) used in the JULES model to calculate R _d,25 and for each plant functional type (PFT). However, the n _l0 values use the 50-percentile numbers of the TRY database