forest {medfate} | R Documentation |
Forest description
Description
Description of a forest stand
Usage
emptyforest(ntree = 0, nshrub = 0, nseed = 0)
## S3 method for class 'forest'
summary(object, SpParams, ...)
## S3 method for class 'summary.forest'
print(x, digits = getOption("digits"), ...)
Arguments
ntree , nshrub |
Number of tree and shrub cohorts, respectively. |
nseed |
Number of species in the seed bank. |
object |
An object of class
|
SpParams |
A data frame with species parameters (see |
... |
|
x |
The object returned by |
digits |
Minimal number of significant digits. |
Details
Function summary.forest
can be used to summarize a forest
object in the console.
Function emptyforest
creates an empty forest
object.
The structure presented above for forest
objects corresponds to the required data elements.
A forest
object can contain additional information when this is available. Data frames treeData
and shrubData
can contain additional columns:
LAI
: Leaf area index (m2/m2)FoliarBiomass
: Standing dry biomass of leaves (kg/m2)FuelLoading
: Fine fuel loading (kg/m2)CrownRatio
: The ratio between crown length and total height (between 0 and 1)
Similarly, one can define forest
list elements herbLAI
, herbFoliarBiomass
or herbFuelLoading
.
All these values are used to override allometry-based estimates of those variables when initializing
inputs for functions spwb
or spwb_day
. Note that leaf area index, foliar biomass and
fuel loading are related entities, and they are treated as such in medfate. Therefore, users are expected to supply
one or the other, and not all of them at the same time.
Value
Function summary.forest
returns a list with several structural attributes, such as the basal area and LAI of the forest.
Function emptyforest
returns an empty forest
object.
Author(s)
Miquel De Cáceres Ainsa, CREAF
See Also
exampleforest
, forest_mapWoodyTables
, forest_mergeTrees
,
plot.forest
, tree2forest
Examples
data(exampleforest)
data(SpParamsMED)
# Prints forest as a list of data items
exampleforest
# Summary of example forest
summary(exampleforest, SpParamsMED)