Description of a forest stand.
# S3 method for forest
summary(object, SpParams, mode = "MED", detailed=FALSE, ...)
# S3 method for summary.forest
print(x, digits = getOption("digits"), ...)
emptyforest(ID="", patchsize=10000, ntree = 0, nshrub = 0)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.
An object of class forest has the following structure:
ID: An identifier of the forest stand (a string).
patchsize: The area that forest stand description represents, in square meters.
treeData: A data frame of tree cohorts (in rows) and the following columns:
Species: Non-negative integer for tree species identity (i.e., 0,1,2,...).
Height: Total height (in cm).
DBH: Diameter at breast height (in cm).
N: Density (number of individuals/cell).
Z50: Depth (in mm) corresponding to 50% of fine roots.
Z95: Depth (in mm) corresponding to 95% of fine roots.
shrubData: A data frame of shrub cohorts (in rows) and the following columns:
Species: Non-negative integer for shrub species identity (i.e., 0,1,2,...).
Height: Total height (in cm).
Cover: Percent cover.
Z50: Depth (in mm) corresponding to 50% of fine roots.
Z95: Depth (in mm) corresponding to 95% of fine roots.
seedBank: A data frame containing the abundance of seeds for each species (in rows) and the following columns:
Species: Non-negative integer for shrub species identity (i.e., 0,1,2,...).
Abundance: Abundance class (0 - none; 1 - low; 2 - medium; 3 - high; 4 - very high).
herbCover: Percent cover of the herb layer.
herbHeight: Mean height (in cm) of the herb layer.
A data frame with species parameters (see SpParamsMED).
Calculation mode, either "MED" or "US".
A boolean flag to indicate that a detailed summary is desired.
The object returned by summary.forest.
Minimal number of significant digits.
An identifier of the forest stand (a string).
The area of the forest stand, in square meters.
Number of tree and shrub cohorts, respectively.
Miquel De Cáceres Ainsa, CREAF
Function summary.forest can be used to summarize a forest object in the console. Function emptyforest creates an empty forest object.
exampleforestMED, forest_mergeTrees, plot.forest
data(exampleforestMED)
data(SpParamsMED)
summary(exampleforestMED, SpParamsMED)
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