Table 20 Rules for merging the criteria-specific ordination for the overall classification of biomass productivity (annual increase in tree wood mass)
Priority | Subtotal factor | Criterion | Merger to subtotals |
|---|---|---|---|
1 | Plant physiological net primary production (annual above-ground tree growth) (P) | P = P | |
2 | Soil water balance (W) | Usable field capacity (nFK) | W = (nFK + T + A + GS)/4 |
Porosity with dead water (waterlogging tendency) (T) | |||
Drying hazard (A) | |||
Groundwater and backwater influence (GS) | |||
3 | Nutrient balance (N) | Cation exchange capacity (Ae) | N = (Ae + nFK + H)/3 |
Usable field capacity (nFK) | |||
Humus mirror (H) | |||
4 | Soil structure (G) | Thoroughness (Ü) | G = (Ü + D + F)/3 |
Rootability (D) | |||
Tendency of solidification (F) | |||
5 | Climate (K) | Length of vegetation period (VZ) | K = (VZ + PP)/2 |
Annual precipitation (PP) | |||