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    Author(s): Stephen R. Shifley; Francisco X. Aguilar; Nianfu Song; Susan I. StewartDavid J. NowakDale D. GormansonW. Keith Moser; Sherri Wormstead; Eric J. Greenfield
    Date: 2012
    Source: In: Shifley, Stephen R.; et al. 2012. Forests of the Northern United States. Gen. Tech. Rep. NRS-90. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 74-78.
    Publication Series: General Technical Report (GTR)
    Station: Northern Research Station
    PDF: View PDF  (1.41 MB)

    Description

    Northern forests cover more than 42 percent of the region and are enormous reservoirs of carbon. Through photosynthesis, live trees emit oxygen in exchange for carbon dioxide they pull from the atmosphere. As a tree grows it stores carbon in wood above and below ground, and sequestered carbon comprises about half of its dry weight. Dead trees and down logs are also reservoirs of carbon. Forest soils sequester additional carbon in the form of incorporated organic matter. In temperate northern forest ecosystems, roughly as much carbon is sequestered in forest soils as is sequestered as live biomass. Forests that are converted to other land uses release the carbon stored in the trees. Trees growing in newly established forests (afforestation) can sequester additional carbon.

    Publication Notes

    • Check the Northern Research Station web site to request a printed copy of this publication.
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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Shifley, Stephen R.; Aguilar, Francisco X.; Song, Nianfu; Stewart, Susan I.; Nowak, David J.; Gormanson, Dale D.; Moser, W. Keith; Wormstead, Sherri; Greenfield, Eric J. 2012. Criterion 5: Maintenance of forest contributions to global carbon cycles. In: Shifley, Stephen R.; et al. 2012. Forests of the Northern United States. Gen. Tech. Rep. NRS-90. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 74-78.

    Keywords

    best practice codes, biodiversity, criteria and indicators, forest health, forest industry, invasive species, nontimber products, sustainable, timber products, watershed, urban forest

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