a moist mixed deciduous forest of the Pacific Northwest, Washington State.

ScienceDaily (July 3, 2009) — The forests of the Pacific Northwest hold significant potential to increase carbon storage and help mitigate greenhouse gas emissions in coming years, a recent study concludes, if they are managed primarily for that purpose through timber harvest reductions and increased rotation ages.

In the complete absence of stand-replacing disturbances – via fire or timber harvest – forests of Oregon and Northern California could theoretically almost double their carbon storage.

Although it isn’t realistic to expect an absence of disturbance, the estimates were based on average conditions up until now that include variation in forest biomass, age, climate, disturbances and soil fertility. If all forest stands in this region were just allowed to increase in age by 50 years, their potential to store atmospheric carbon would still increase by 15 percent, the study concluded.

That would be a modest, but not insignificant offset to the nation’s carbon budget, scientists say, since this region accounts for 14 percent of the live biomass in the entire United States.

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