Abstract
Down dead wood (DDW) is important for its role in carbon and nutrient cycling, carbon sequestration, wildfire behavior, plant reproduction, and wildlife habitat. DDW was measured for the first time during a forest inventory of Maine by the USDA Forest Service in 1994-1996. Pieces greater than 3 feet long and greater than 3 inches in diameter at point of intersection were measured on line transects located on standard forest inventory plots. Large piles of DDW were sampled using the standard circular plot. The amount of DDW is presented in terms of totals and per area estimates for volume, number of pieces, biomass, and carbon, summarized by attributes such as forest type group, owner group, species, and diameter class. This inventory indicates Maine's timberlands contain approximately 7.2 billion cubic feet (=or- 28%) in piles of DDW. DDW in piles and pieces contains 68.9 billion pounds (=or- 8%) of carbon. This is equivalent to an average of 8,030 pounds of DDW biomass per acre.
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