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Table 2 Generic (apply to all taxa) parameter values used in the simulations

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

Parameter Description Parameter value Source
Site variables
 Latitude Latitude (degrees) 46N Dickson et al. 2000
 Soil type Soil texture class (USDA Natural Resources Conservation Service) SALO (sandy loam) Dickson et al. 2000
 RootingDepth Depth of rooting zone (mm) 1000 Unpublished data
 PrecLossFrac Fraction of precipitation not entering soil 0.0 Expert judgment based on flat terrain
 LeakageFrac Fraction of water in excess of field capacity that drains out of the rooting zone 1.0 Unpublished data
 PrecIntConst Fraction of precipitation that is intercepted 0.11 Expert judgment
Canopy variables
 TOfol Fraction of foliage lost/year 1.0 Definition of deciduous
 k Canopy light extinction coefficient (unitless) 0.61 Ryu et al. (2008)
Photosynthesis variables
 BFolResp Foliar respiration as a fraction of max. Photosynthetic rate (mo−1) 0.10 Gustafson et al. 2016
 AmaxA/B Intercept (A) and slope (B) of relationship between foliar N and max. Net photosynthetic rate (μmol CO2 m−2 leaf s− 1) 5.3/21.5 Aber et al. (1996)
 PsnAgeRed Tuning parameter controlling senescence mortality (respiration > productivity) (unitless) 5  
 Q10 Q10 value for foliar respiration (unitless) 2.0 Aber et al. 1996
Carbon balance variables
 TOroot Fraction of root biomass lost to damage or death (year−1) 0.02 Gustafson et al. 2016
 TOwood Fraction of wood biomass lost to damage or death (year−1) 0.01 Gustafson et al. 2016
 MaintResp Tissue maintenance respiration as a fraction of biomass (mo−1) 0.002 Gustafson et al. 2016
 dNSC Fraction of NSC allocated to structural biomass pools (mo−1) 0.05 Gustafson et al. 2016