On the Ecology of Mountainous Forests in a Changing Climate: A ...

246 Appendix
V .
Sensitivity analysis: Species parameters and detailed
results
Tab. A-15 & A-16 list the lower and upper end of the plausibility interval of the species
parameters, respectively. For some parameters of some species, it was not possible to derive
these values because of the following restrictions:
1) For some parameters of a few species, no measure of variability could be derived
from the literature (e.g. kDm and kAm of Pinus montana)
2) It was not possible to determine plausible uncertainty ranges of the kWiT s parameter
for those species that have no susceptibility to low winter temperature
(kWiT s = N).
3) For parameters whose default value for a given species is already at the lower
or upper boundary of the definition range (e.g. sType, kNTol, kBrow, kLy,
kLa, kLQ), the sensitivity could not be determined because the definition range
of the parameters would have been exceeded
4) For parameters whose default value for a given species is closer to the lower or
upper boundary of the definition range than half the size of their plausibility
interval (e.g. kLy of Larix decidua), the parameter was set to the minimum or
maximum of the definition range, respectively.
In the cases 1) to 3) above, no simulation studies were conducted. These cases are marked
by empty cells in Tab. A-15 & A-16.
Taking into account the above restrictions, it was possible to derive a lower boundary of
the plausibility interval for 364 species parameters and an upper boundary for 368 species
parameters (Tab. A-15 & A-16).
Tab. A-17 & A-18 give the percentage similarity coefficients between the steady state
species composition of the FORCLIM-E/P/S model with the default parameter set and the
steady states as estimated with each of the parameters changed according to Tab. A-15
and A-16, respectively.
In Tab. A-19 & A-120 the change in the biomass of those species whose parameters
were lowered or increased are listed. Empty cells denote either missing parameters (cf.
Tab. A-15 & A-18) or that no significant change (α = 5%) of the biomass occurred.