The goal of IFNallometry is to provide routines for calculating volume and biomass for forest stands using allometries developed from Spanish Forest Inventory (IFN) plot data.
Installation
You can install the development version of IFNallometry from GitHub with:
# install.packages("pak")
pak::pak("emf-creaf/IFNallometry")Example
Here is an example data set of forest plot input to the package:
library(IFNallometry)
data("example_tree_data")
head(example_tree_data)
#> ID Species N DBH H
#> 344 80001 22 31.83099 18.9 7.5
#> 345 80001 22 14.14711 29.2 7.5
#> 346 80001 22 14.14711 23.9 9.5
#> 347 80001 22 14.14711 23.7 7.0
#> 348 80001 22 14.14711 32.7 8.0
#> 349 80001 22 31.83099 13.7 8.0Below is the code and result of calculating timber volumes, using plot ID to extract the Spanish province:
example_volumes <- IFNvolume(example_tree_data, provinceFromID = TRUE)
head(example_volumes)
#> ID Species Name FC VCC VSC VLE IAVC
#> 1 80001 22 Pinus uncinata 1 3.602559 2.860209 -0.035419361 0.12176755
#> 2 80001 22 Pinus uncinata 1 3.229656 2.690636 0.033717806 0.07381033
#> 3 80001 22 Pinus uncinata 1 2.805269 2.321029 0.018885424 0.06887026
#> 4 80001 22 Pinus uncinata 1 2.150192 1.750104 -0.001320525 0.06097990
#> 5 80001 22 Pinus uncinata 1 4.176124 3.514192 0.071731231 0.08434162
#> 6 80001 22 Pinus uncinata 1 2.441344 1.846656 -0.061216067 0.10679360And here is the code and result of calculating biomass components:
example_biomass <- IFNbiomass(example_tree_data)
head(example_biomass)
#> ID Species Name SpeciesAllom NameAllom Roots Stem
#> 1 80001 22 Pinus uncinata 22 Pinus uncinata 2194.477 1731.1354
#> 2 80001 22 Pinus uncinata 22 Pinus uncinata 2328.041 1836.4987
#> 3 80001 22 Pinus uncinata 22 Pinus uncinata 1559.627 1558.4148
#> 4 80001 22 Pinus uncinata 22 Pinus uncinata 1533.634 1129.1675
#> 5 80001 22 Pinus uncinata 22 Pinus uncinata 2919.580 2456.6831
#> 6 80001 22 Pinus uncinata 22 Pinus uncinata 1153.051 970.2358
#> Branches Leaves Needles Bark Aerial Total
#> 1 1448.8434 NA NA NA 3179.979 5374.456
#> 2 1308.8274 NA NA NA 3145.326 5473.367
#> 3 877.7623 NA NA NA 2436.177 3995.804
#> 4 958.3115 NA NA NA 2087.479 3621.113
#> 5 1541.9793 NA NA NA 3998.662 6918.243
#> 6 748.7747 NA NA NA 1719.010 2872.062Documentation
So far, the only documentation provided is the one included for package functions (see package website).
Companion R packages
The development of IFNallometries is intended to complement packages medfate and medfateland but it can be used independently.
Authorship
This R package is developed and maintained by the Ecosystem Modelling Facility unit at CREAF (in Spain), in close collaboration with researchers from CTFC (in Spain).