Using a fuel model which characterizes stand fuel properties, the paper quantifies and explains the effects of stand development and silvicultural interventions on fire behavior. It also presents and-explains that all fire behavior properties are strongly related to fuel characteristics. Results showed that rate of spread (ROS) was relatively,high when crown fuels were becoming more involved and the crown base was low. Fuel consumption was related to the quantity of fuel available. Fire behavior in thinned stands followed the same pattern as in the unthinned stands except for sharp changes brought about by the periodic rearrangements in fuel from the thinnings., ROS, fuel consumption and fire intensity all increased abruptly with thinning, but declined rapidly with the decomposition and lower availability. of thinned fuels, and the reduced probability of crowning. (C) 2002 Elsevier Science B.V. All rights reserved.