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Publication Title:   Effects on carbon storage of conversion of old-growth forests to young forests

Year:  1990     Publication Type:  Journal Article

H. J. Andrews Publication Number:  1046

Citation:  Harmon, Mark E.; Ferrell, William K.; Franklin, Jerry F. 1990. Effects on carbon storage of conversion of old-growth forests to young forests. Science. 247: 699-702.

Online PDF:  http://andrewsforest.oregonstate.edu/pubs/pdf/pub1046.pdf

Abstract:  Simulations of carbon storage suggest that conversion of old-growth forests to youngfast-growing forests will not decrease atmospheric carbon dioxide (CO2) in general, ashas been suggested recently. During simulated timber harvest, on-site carbon storage isreduced considerably and does not approach old-growth storage capacity for at least200 years. Even when sequestration of carbon in wooden buildings is included in themodels, timber harvest results in a net flux of CO2 to the atmosphere. To offset thiseffect, the production of lumber and other long-term wood products, as well as the span of buildings, would have to increase markedly. Mass balance calculations indicatethat the conversion of 5 x 106 hectares of old-growth forests to younger plantations inwestern Oregon and Washington in the last 100 years has added 1.5 x 109 to1.8 x 109 megagrams of carbon to the atmosphere.

Personnel and Keyword Links

Author Links
Harmon ,  Mark   E.
Ferrell ,  William   K.
Franklin ,  Jerry   F.

Carbon cycling
Ecosystem function
Ecosystem modeling
Managed forests
Managed stands
Old growth
Old-growth forests
Timber harvesting
Young forests

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