Abstract
A ®re-risk model was developed using a stand-structure approach for the forests of the eastern slopes of the Washington
Cascade Range, USA. The model was used to evaluate effects of seven landscape-scale silvicultural regimes on ®re risk at two
spatial scales: (1) the risk to the entire landscape; and (2) the risk to three reserve stands with stand structures associated with
high conservation priorities (layered canopy, large trees, multiple species). A 1000 ha landscape was projected ®ve decades for
each management regime using an individual tree, distance-independent growth model. Results suggest that a variety of
silvicultural approaches will reduce landscape ®re risk; however, reserve stand ®re risk is minimally decreased by thinning
treatments to neighboring stands. Intensive fuel reduction through prescribed burning and selection of reserve stands in
favorable topographic positions provide substantial ®re risk reductions. # 1998 Elsevier Science B.V.