FVS out of the box - assembly required

Abstract

The Forest Vegetation Simulator (FVS) is a prominent growth and yield model used for forecasting stand dynamics. However, users need to be aware of model behavior regarding stocking density, tree senescence, and understory recruitment; otherwise over long projections, FVS tends to concentrate substantial growth on few survivor trees. If the intent is to forecast endemic conditions, model performance can be modified by establishing baseline trends from measured inventory data and configuring FVS to stay within the observed ranges. This paper will present the steps needed to carefully craft an endemic FVS run. Techniques include using the FVS self-calibrating feature; accounting for tree defect; limiting stand maximum density; determining tree species size attainment; and, accounting for regeneration response. A case example from the Blue Mountains project area in northeast Oregon will be presented.

Parent Publication

• Integrated management of carbon sequestration and biomass utilization opportunities in a changing climate: Proceedings of the 2009 National Silviculture Workshop; 2009 June 15-18; Boise, ID.

Citation

Vandendriesche, Don. 2010. FVS out of the box - assembly required. In: Jain, Theresa B.; Graham, Russell T.; Sandquist, Jonathan. Integrated management of carbon sequestration and biomass utilization opportunities in a changing climate: Proceedings of the 2009 National Silviculture Workshop; 2009 June 15-18; Boise, ID. Proceedings RMRS-P-61. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 289-306.