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Factors Controlling Long- and Short-Term Sequestration of Atmospheric CO2in a Mid-Latitude Forest

Net uptake of carbon dioxide (CO2) measured by eddy covariance in a 60- to 80-year-old forest averaged 2.0 ± 0.4 megagrams of carbon per hectare per year during 1993 to 2000, with interannual variations exceeding 50%. Biometry indicated storage of 1.6 ± 0.4 megagrams of carbon per hectare per year o...

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Published in:Science (American Association for the Advancement of Science) 2001-11, Vol.294 (5547), p.1688-1691
Main Authors: Barford, Carol C., Wofsy, Steven C., Goulden, Michael L., Munger, J. William, Pyle, Elizabeth Hammond, Urbanski, Shawn P., Hutyra, Lucy, Saleska, Scott R., Fitzjarrald, David, Moore, Kathleen
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container_title Science (American Association for the Advancement of Science)
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creator Barford, Carol C.
Wofsy, Steven C.
Goulden, Michael L.
Munger, J. William
Pyle, Elizabeth Hammond
Urbanski, Shawn P.
Hutyra, Lucy
Saleska, Scott R.
Fitzjarrald, David
Moore, Kathleen
description Net uptake of carbon dioxide (CO2) measured by eddy covariance in a 60- to 80-year-old forest averaged 2.0 ± 0.4 megagrams of carbon per hectare per year during 1993 to 2000, with interannual variations exceeding 50%. Biometry indicated storage of 1.6 ± 0.4 megagrams of carbon per hectare per year over 8 years, 60% in live biomass and the balance in coarse woody debris and soils, confirming eddy-covariance results. Weather and seasonal climate (e.g., variations in growing-season length or cloudiness) regulated seasonal and interannual fluctuations of carbon uptake. Legacies of prior disturbance and management, especially stand age and composition, controlled carbon uptake on the decadal time scale, implying that eastern forests could be managed for sequestration of carbon.
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subjects Biometrics
Carbon dioxide
Carbon sequestration
Climate models
Coarse woody debris
Forest ecosystems
Forest soils
Mortality
Net ecosystem exchange
Trees
title Factors Controlling Long- and Short-Term Sequestration of Atmospheric CO2in a Mid-Latitude Forest
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