Extrapolating plot-scale CO2 and ozone enrichment experimental results to novel conditions and scales using mechanistic modeling

Gustafson, Eric J.; Kubiske, Mark E.; Miranda, Brian R.; Hoshika, Yasutomo; Paoletti, Elena

doi:10.1186/s13717-018-0142-8

Ecological Processes

Table 1 Taxon-specific PnET-Succession parameters. Tuned parameters indicated by *. Red maple and red oak were parameterized based on Coulston et al. 2003 because they were not included in the Aspen-FACE experiment

From: Extrapolating plot-scale CO₂ and ozone enrichment experimental results to novel conditions and scales using mechanistic modeling

Parameter	Description	Parameter value								Source
Parameter	Description	Clone 8	Clone 42	Clone 216	Clone 271	Sugar maple	Paperbirch	Red maple	Red oak
Range of FolN*	Foliar nitrogen content (%)	2.3–3.6	2.4–3.7	2.5–3.8	2.5–3.8	1.6–1.9	2.0–3.7	1.5–2.6	1.9–2.8	Serbin et al. 2014. Tuned to control productivity
FolN Shape*	Shape parameter controlling FolN	9.0	9.0	9.0	9.0	1.0	6.0	1.5	2.0	Tuned to control growth response to light
HalfSat	Half saturation light level at 385 ppm CO₂ (μmol m⁻² s⁻¹)	300	300	300	300	100	250	150	200	Ryu et al. (2008)
H3	Pressure head at which water stress begins (m)	− 100	−100	− 100	− 100	− 105	−100	111	111	Expert judgment
H4	Pressure head at which photosynthesis ceases (m)	−140	− 140	− 140	−140	− 145	− 140	− 152	− 152	Expert judgment
PsnTMin	Minimum temperature for photosynthesis (°C)	2	2	2	2	3	2	3	2	Gustafson et al. 2016
PsnTOpt	Optimum temperature for photosynthesis (°C)	21	21	21	21	23	21	26	24	Gustafson et al. 2016
SLWmax*	Specific leaf weight at the top of canopy (g/m²)	115	105	100	110	40	60	80	70	Serbin et al. 2014. Tuned to control LAI
Frac BelowG	Fraction of structural biomass in root pool	0. 33	0. 33	0. 33	0. 33	0.33	0. 33	0.33	0.33	Smith et al. 2006, Burns and Honkala 1990
FracActWd*	Shape parameter that determines the fraction of woody biomass that is active	7.0E−5	7.0E−5	7.0E−5	7.0E−5	7.0E−5	7.0E−5	7.0E−5	7.0E−5	Coarsely tuned to control foliar mass
Range of FracFol*	Foliage mass is this fraction of active woody biomass (sapwood)	0.04–0.07	0.04–0.07	0.04–0.07	0.04–0.07	0.03–0.08	0.04–0.75	0.03–0.07	0.03–0.073	Coarsely tuned to control foliar mass
FracFol Shape *	Shape parameter controlling FracFol	3.0	3.0	3.0	3.0	2.5	3.0	2.53	2.58	Tuned to control growth response to light
O3 Stomata Sens*	Stomatal sluggishness sensitivity to O3	Tol	Sens	Sens	Sens	Tol	Int	Sens	Tol	Tuned to control O3 response
O3 Growth Sens*	Tissue sensitivity to O3 (0 = insensitive)	0	3	3	3	0	2	3	0	Tuned to control O3 response
Longevity	Age at which the age reduction factor = 0.0 (yrs)	90	90	90	90	250	110	200	200	Burns and Honkala 1990

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