Open Access
Table I
Symbols.
| Symbol | Unit | Description |
|---|---|---|
| B | Mg ha−1 | Stand stem biomass |
| b | Mg | Mean stem biomass of a single tree |
| dBd / dtc | Mg ha−1 y−1 | Production of dead stem biomass |
| dB / dtc | Mg ha−1 y−1 | Increment of standing stem biomass |
| N | ha−1 | Number of trees |
| N max | ha−1 | Maximum number of trees at a fixed b |
| k | Mg | b where Nmax = 1 (position of the self |
| thinning line, Eq. (1)) | ||
| α | – | Slope of the self thinning Equation (1) |
| m | y−1 | Density independent mortality, |
| fraction of total biomass | ||
| q | – | Size (b) of the trees that dies during self |
| thinning relative to the mean tree b | ||
| c | – | Closure = N / Nmax |
| c t | – | maximum closure allowed in a thinned stand |
| u g | – | Gross growth rate relative to a closed stand |
| γ g | – | Parameter of ug |
| u m | – | Mortality relative to a closed stand |
| γ m | – | Parameter of um |
| f t | – | Fraction biomass removed in a thinning |