Assessing Fire Risk In Stand-level Management
In Galicia (north-western Spain)
Author(s)
M. Pasalodos-Tato & T. Pukkala
Abstract
Forest fires are the most important threat that forest plantations have to face in
Galicia. Due to both economic and ecological losses that fire cause in the region,
fire risk must be integrated in forest management planning. Nevertheless, the
complexity of forest fires and the dependence of their consequences on many
uncontrollable factors (i.e., wind speed, fuel moisture, flame intensity, etc),
makes it difficult to predict these consequences. Fire risk is the probability of
occurrence multiplied by the proportion of damaged timber. The aim of this
study is to analyse the effect of fire risk on the optimal management schedule of
Pinus radiata stands under two different ways of assessing risk: endogenous and
exogenous approach, both with and without timber depreciation. The results
show that optimal rotation length shortens with increasing fire risk if there is
timber depreciation. Without timber depreciation the trend is similar except for
very high values of exogenous salvage rate and endogenous salvage; in these
situations, rotation length increases when fire risk increases.
Keywords: optimisation, simulation, endogenous risk, exogenous risk, soil
expectation value, salvage, timber depreciation.
1 Introduction
Fire can be considered the main hazard for forest stands in Galicia. More than
half of the forest fires that took place in Spain in the last decade occurred in
Galicia. (Ministerio de Medio Ambiente [1]). Among the reasons that can
explain this high proportion of forest fires are the high fuel loads due to
management that maximises biomass production. This kind of management is a
consequence of high demand for disintegration wood in the region. The current
management practise involves production of large amount of forest residues
Keywords
optimisation, simulation, endogenous risk, exogenous risk, soil
expectation value, salvage, timber depreciation.
Related Book
Other papers in this volume
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