Table 2 Overview of the variables from the dendrometric, thinning and carbon segments of the database with the definition of the variable
Type | Variable | Description of the variable | Unit |
|---|---|---|---|
Dendrometric variables | stand_age | Age from seed | Year |
stand_cut | Stand before or after thinning | ||
stand_hdom | Dominant height of the stand | m | |
stand_n | Density of the stand | N.ha−1 | |
stand_ba | Basal area of the stand | m2. ha−1 | |
stand_dbh_mean | Mean quadratic diameter of the stand | cm | |
stand_dbh_dom | Mean dominant diameter of the stand | cm | |
stand_vstem_c7 | Merchantable stem volume of the stand (overbark volume of the bole with a stem top diameter > 7 cm) | m3. ha−1 | |
stand_vtot_c7 | Merchantable stem and branches volume of the stand (overbark volume of the bole with a stem top diameter > 7 cm and large branches of a diameter > 7 cm) | m3. ha−1 | |
stand_vtot_c0 | Whole stem volume of the stand (overbark volume of the stump, bole and branches without conditions of minimum diameter) | m3. ha−1 | |
stand_prod_ba | Total basal area production of the stand | m2. ha−1 | |
stand_mai_ba | Mean annual basal area increment of the stand | m2. ha−1.an−1 | |
stand_cai_ba | Current annual basal area increment of the stand | m2. ha−1.an−1 | |
stand_prod_vstem_c7 | Total merchantable stem volume production of the stand | m3. ha−1 | |
stand_mai_vstem_c7 | Mean annual merchantable stem volume increment | m3. ha−1.an−1 | |
stand_cai_vstem_c7 | Current annual merchantable stem volume increment of the stand | m3. ha−1.an−1 | |
stand_prod_vtot_c0 | Total whole stem volume production of the stand | m3. ha−1 | |
stand_mai_vtot_c0 | Mean annual whole stem volume increment of the stand | m3. ha−1.an−1 | |
stand_cai_vtot_c0 | Current annual whole stem volume increment of the stand | m3. ha−1.an−1 | |
Thinning variables | harv_n | Harvested density in the stand | N. ha−1 |
harv_ba | Harvested basal area in the stand | m2. ha−1 | |
harv_dbh | Mean quadratic diameter of the harvested stems | cm | |
harv_vstem_c7 | Harvested merchantable stem volume in the stand | m3. ha−1 | |
harv_vtot_c0 | Harvested whole stem volume in the stand | m3. ha−1 | |
harv_vstem_c7_unit | Mean harvested merchantable stem volume per tree | m3. stem−1 | |
harv_kg | Thinning qualifier coefficient | ||
Carbon accounting variables | biom_dens_Dupouey | Basic specific gravity of the species according to the Dupouey database | |
carb_aer | Carbon storage in aerial biomass of the stand | tCO2. ha−1 | |
carb_root | Carbon storage in root biomass of the stand | tCO2. ha−1 | |
carb_stor | Carbon storage in total biomass of the stand | tCO2. ha−1 | |
harv_carb_aer | Exported carbon content from harvested biomass | tCO2. ha−1 | |
carb_stor_mean | Mean carbon storage on a rotation length | tCO2. ha−1 | |
carb_cai | Annual flow of carbon converted in biomass (current annual carbon increment) | tCO2. ha−1.an−1 |