3. Results
3.1. Management scenarios
3.1.1. No treatment (none)
Landscape risk can be evaluated by examining the
proportions of landscape area that fall in each risk
category. In the no treatment scenario, landscape risk
increases with time (Fig. 4). In presenting the results
we refer to stand ®re risk scores of 1 or 2 as `low risk'
and scores of 6 or 7 as `high risk'. In the ®rst decade,
15% of the landscape is composed of high-risk stands,
and 40% is low risk. By the third decade stands with
a risk of 1 occur on less than 10% of the landscape. By
the ®fth decade, nearly 30% of the landscape is in the
high-risk category. Reserve stands A and C had risks