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Table 5 Decay Reduction Factors for Calculation of Carbon in Standing Dead Wood

From: Effects of Management on Carbon Sequestration in Forest Biomass in Southeast Alaska

Time Since Death Log/Snag Stage Percent of original Carbon (%)
Foliage Bark Sm. Branches Med. Branches Lg. Branches Wood
Less than 5 years 1 20 100 90 100 100 100
More than 5 years 2 0 70 50 100 100 100
More than 5 years 3 0 40 30 80 90 100
More than 5 years 4 0 20 10 50 75 90
More than 5 years 5 0 0 0 0 20 70
  1. Carbon in standing dead wood was calculated with the same allometric equations used for live trees and then reduced by the appropriate percentage in shown this table.