A data sets of species parameter values, resulting from bibliographic search, fit to empirical data or expert-based guesses.
data("SpParamsMED")
data("SpParamsUS")A data frame with species as rows and the following columns (variables), grouped by categories.
Name: A factor with taxon names (mostly species names).
IFNcodes: A factor with levels corresponding to species codes in the Third Spanish forest inventory (DGCN 2005).
SpIndex: A numeric vector of the species index.
Group: Either "Gymnosperm" or "Angiosperm".
Order: Taxonomical order.
Family: Taxonomical family.
GrowthForm: Either Shrub, Tree and Tree/Shrub.
Plant size:
Hmax: Maximum plant height (in cm).
Hmed: Median plant height (in cm).
Z50: Rooting depth (in mm) corresponding to 50% of fine roots.
Z95: Rooting depth (in mm) corresponding to 95% of fine roots.
Shrub allometric coefficients (calibrated for Catalonia):
a_ash: Regression coefficient relating the square of shrub height with shrub area.
a_bsh, b_bsh: Allometric coefficients relating phytovolume with dry weight of shrub individuals.
cr: Ratio between shrub crown length and total height.
Tree allometric coefficients (calibrated for Catalonia):
a_fbt, b_fbt, c_fbt, d_fbt: Regression coefficients used to calculate foliar biomass of an individual tree from its dbh and the cummulative basal area of larger trees.
a_cr, b_1cr, b_2cr, b_3cr, c_1cr, c_2cr: Regression coefficients used to calculate crown ratio of trees.
a_cw, b_cw: Regression coefficients used to calculated crown width of trees.
Phenology:
PhenologyType: Leaf phenology type, either "oneflush-evergreen" (new leaves develop in spring-summer), "progressive-evergreen" (new leaves develop during any season), "winter-deciduous" (leaf senescence in autumn, new leaves in spring-summer) or "winter-semideciduous" (same as before, but abscission of senescent leaves occurs when new leaves are produced).
LeafDuration: Leaf duration (in years).
Sgdd: Growth degree days for leaf budburst (in Celsius).
Anatomy:
SLA: Specific leaf area (mm2/mg = m2/kg).
LeafDensity: Density of leaf tissue (dry weight over volume).
WoodDensity: Wood density (at 0 percent humidity!).
FineRootDensity: Density of fine root tissue (dry weight over volume).
r635: Ratio between the weight of leaves plus branches and the weight of leaves alone for branches of 6.35 mm.
pDead: Proportion of total fine fuels that are dead
Al2As: Leaf area to sapwood area ratio (in m2<U+00B7>m-2).
LeafWidth: Leaf width (in cm).
SRL: Specific root length (cm/g).
RLD: Fine root length density (i.e. density of root length per soil volume) (cm<U+00B7>cm-3).
Tissue moisture:
maxFMC: Maximum fuel moisture (in percent of dry weight)
minFMC: Minimum fuel moisture (in percent of dry weight)
LeafPI0: Osmotic potential at full turgor of leaves (MPa).
LeafEPS: Modulus of elasticity (capacity of the cell wall to resist changes in volume in response to changes in turgor) of leaves (MPa).
LeafAF: Apoplastic fraction (proportion of water outside the living cells) in leaves.
StemPI0: Osmotic potential at full turgor of symplastic xylem tissue (MPa).
StemEPS: Modulus of elasticity (capacity of the cell wall to resist changes in volume in response to changes in turgor) of symplastic xylem tissue (Mpa).
StemAF: Apoplastic fraction (proportion of water outside the living cells) in stem xylem.
Flammability:
LigninPercent: Percent of lignin+cutin over dry weight in leaves.
ParticleDensity: Particle density (kg/m3).
LeafLitterFuelType: Fuel type for leaf litter, with levels Broadleaved, LongLinear, Scale and ShortLinear.
Flammability: Flammability modifier (either 1 or 2 for normal or high, respectively).
SAV: Surface-area-to-volume ratio of the small fuel (1h) fraction (leaves and branches < 6.35mm) (m2/m3).
HeatContent: High fuel heat content (kJ/kg).
Extinction:
gammaSWR: Reflectance (albedo) for SWR (gammaPAR = 0.8*gammaSWR).
alphaSWR: Absorbance coefficient for SWR (alphaPAR = alphaSWR * 1.35).
kPAR: Extinction coeficient for PAR (kSWR = kPAR/1.35).
g: Canopy water storage capacity per LAI unit (in mm/LAI).
Transpiration/Photosynthesis:
WUE: Water use efficiency for carbon assimilation (g C /mm water).
Psi_Extract: Water potential corresponding to 50% stomatal conductance (in MPa).
Psi_Critic: Water potential corresponding to 50% of stem cavitation (in MPa).
pRootDisc: Relative root conductance leading to hydraulic disconnection from a soil layer.
Gwmin: Minimum stomatal conductance to water vapor per leaf area unit (in mol<U+00B7>s-1<U+00B7>m-2).
Gwmax: Maximum stomatal conductance to water vapor per leaf area unit (in mol<U+00B7>s-1<U+00B7>m-2).
VCleaf_kmax: Leaf hydraulic conductance (in mmol H2O<U+00B7>s-1<U+00B7>m-2<U+00B7>MPa-1).
VCleaf_c, VCleaf_d: Parameters of the leaf vulnerability curve (VCleaf_d in MPa).
Kmax_stemxylem: Sapwood-specific hydraulic conductivity of stem xylem (in kg H2O<U+00B7>s-1<U+00B7>m-1<U+00B7>MPa-1).
VCstem_c, VCstem_d: Parameters of the stem xylem vulnerability curve (VCstem_d in MPa).
Kmax_rootxylem: Sapwood-specific hydraulic conductivity of root xylem (in kg H2O<U+00B7>s-1<U+00B7>m-1<U+00B7>MPa-1).
VCroot_c, VCroot_d: Parameters of the root xylem vulnerability curve (VCroot_d in MPa).
Narea: Nitrogen contrentration per leaf area (in g<U+00B7>m-2).
Vmax298: Maximum Rubisco carboxilation rate at 25<U+00BA>C (in micromol CO2<U+00B7>s-1<U+00B7>m-2).
Jmax298: Maximum electron transport rate at 25<U+00BA>C (in micromol electrons<U+00B7>s-1<U+00B7>m-2).
Growth:
WoodC: Wood carbon content per dry weight (g C /g dry).
RGRsapwoodmax: Maximum relative growth rate (in basal area or sapwood area) (in cm2<U+00B7>cm-2).
fHDmin: Minimum value of the height-to-diameter ratio (dimensionless).
fHDmax: Maximum value of the height-to-diameter ratio (dimensionless).
See details of parameterization in De Caceres et al. (2015) and De Caceres et al. (submitted).
# NOT RUN {
data(SpParamsMED)
# }
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