biomass.growth: Calculate change in biomass (agb).
In forestgeo/ctfs: Tools for the Analysis of Forest Dynamics

Description Usage Arguments

Like growth(), but calculates change in biomass (agb) instead of dbh. The census tables must have a column called agb. There is no trimming done at all – every tree is included, and its entire biomass (the agb column in the standard CTFS data object has total agb, all stems included.)

1 2	biomass.growth(census1, census2, rounddown = FALSE, stdev = FALSE, mindbh = 10, split1 = NULL, split2 = NULL)

`census1`	The R Analytical Table for a single census, either tree or stem.
`census2`	The matching R Analytical Table for a later census.
`rounddown`	If TRUE, all dbh < 55 are rounded down to the nearest multiple of 5.
`stdev`	Logical. Default (FALSE) returns confidence limits, otherwise returns the SD in growth rate per group.
`mindbh`	The minimum diameter above which the counts are done. Trees smaller than `mindbh` are excluded. If `NULL`, all living trees are included.
`split1`	a vector of categories, one per individual
`split2`	another vector of categories, one per individual