medfate (version 0.2.2)

SpParamsMED: Parameter values for Mediterranean species

Description

A data set of parameter values for Mediterranean species, resulting from bibliographic search, fit to empirical data or expert-based guesses.

Usage

data("SpParamsMED")

Format

A data frame with 89 observations (species) on the following 42 variables.

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

GrowthForm

A factor with levels Shrub, Tree and Tree/Shrub

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 crown length and total height (for shrubs).

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.

TreeType

A factor with levels Conifer, Deciduous, Evergreen or Shrub

SLA

Specific leaf area (mm2/mg = m2/kg).

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

maxFMC

Maximum fuel moisture (in percent of dry weight)

minFMC

Minimum fuel moisture (in percent of dry weight)

LeafDuration

Leaf duration (in years).

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).

Z_max

Maximum rooting depth (in mm).

k

Light extinction coeficient for PAR.

g

Canopy water storage capacity per LAI unit (in mm/LAI).

Sgdd

Growth degree days for leaf budburst (in Celsius)

psiExtr

Water potential corresponding to 50% relative conductance (in kPa).

RC_min

Minimum canopy resistance (in s/m)

VC_kxmax

Maximum xylem hydraulic conductance (in L/m2/day)

VC_c, VC_d

Parameters of the xylem vulnerability curve.

Details

See details of parameterization in De Caceres et al. (2015) and De Caceres et al. (submitted).

See Also

swb

Examples

# NOT RUN {
data(SpParamsMED)
# }