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Title: Predicting Soil CO2 Efflux Rates in the Loblolly Pine Ecosystem Across the Region

Author: Gough, Christopher; Seiler, John; Wiseman, Eric;

Date: 2004

Source: Gen. Tech. Rep. SRS–71. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 443-445

Publication Series: Miscellaneous Publication

   Note: This article is part of a larger document. View the larger document

Description: Patterns in soil CO2 efflux (Ec) over a short rotation were examined using a chronosequence approach on South Carolina Coastal Plain and Virginia Piedmont loblolly pine (Pinus taeda L.) stands. Ec was measured over an entire year in four separate age classes at both measurement locations in order to capture spatial and temporal variation in Ec over a 20+ year rotation. Within each stand, spatial variability was also accounted for by taking measurements both near the base of the tree and between rows. We found that soil temperature (at 10 cm) was the major driver of Ec on both locations. We also observed a strong positive stand age effect on Ec in Virginia Piedmont stands and a weak negative relationship between age and Ec in the South Carolina Coastal Plain stands. Variation in site preparation intensity between the two locations may influence the rate of carbon turnover.

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Gough, Christopher; Seiler, John; Wiseman, Eric 2004. Predicting Soil CO2 Efflux Rates in the Loblolly Pine Ecosystem Across the Region. Gen. Tech. Rep. SRS–71. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 443-445

 


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