nsur2 {TapeS} | R Documentation |
Component biomass functions
Description
evaluation of the component biomass functions fit by nonlinear seemingly unrelated regression (NSUR) to estimate absolute or relative component mass
Usage
nsur2(spp, dbh, ht)
Arguments
spp |
vector of species code for biomass component function of interval
[1;8]; see |
dbh |
vector of diameter in breast height; in centimeter |
ht |
vector of tree heights, in meter |
Details
simple function from Vonderach et al. (2018) to calculate component
biomass; species mapping as in TapeS::BaMap(, type=7)
Value
a numeric matrix holding component biomass
References
Vonderach, C., G. Kändler and C. F. Dormann (2018). "Consistent set of additive biomass functions for eight tree species in Germany fit by nonlinear seemingly unrelated regression." Annals of Forest Science 75(2): 49. doi:10.1007/s13595-018-0728-4
Examples
nsur2(spp = c(1, 6),
dbh = c(30, 30),
ht = c(25, 27))