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 |