Mohammad Bataineh, an assistant research professor of quantitative silviculture and forest modeling at the University of Maine’s Center for Research on Sustainable Forests, was awarded $69,747 from the U.S. Department of Agriculture’s Forest Service for his proposal, “Incorporating spruce-budworm impacts into the Acadian Variant of the Forest Vegetation Simulator.”
Outbreaks of the native spruce budworm insect (Choristoneura fumiferana) cause tree mortality and growth reduction, which negatively affect forest productivity. Outbreaks also cause uncertainty in predicting future wood supplies and forest conditions. Sustainable management of the Northern Forest requires accounting for outbreak effects in forest management planning and wood supply forecasts, according to the proposal.
Bataineh’s five-year project aims to modify the Acadian Variant of the USDA Forest Service’s Forest Vegetation Simulator (FVS) to account for spruce budworm effects on tree and stand development.
Aaron Weiskittel, an associate professor of forest biometrics and modeling, is the project’s co-principal investigator.
The FVS is a system of forest growth simulation models that have been calibrated for specific geographic areas, or variants, of the country. The system can simulate a range of silvicultural treatments for most major forest tree species, forest types and stand conditions, according to the Forest Service’s website.
The research project also proposes to establish the Acadian Variant as the base stand growth model in the Spruce Budworm Decision Support System. The Canadian Forest Service developed the Spruce Budworm Decision Support System to assist foresters in planning and carrying out management activities that potentially reduce the damage caused by spruce budworm.
Researchers will compile a regional dataset on individual-tree growth and mortality under Maine’s most recent spruce budworm outbreak that occurred in the 1970s and ’80s.
The new capability of the Acadian Variant will provide Northern Forest managers with improved growth and yield projections and the ability to assess the potential impact of spruce budworm outbreaks on wood supply and forest level planning through the Spruce Budworm Decision Support System, according to the researchers.
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