Carbon cycling in a loblolly pine plantation |
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| Authors: | R. S. Kinerson C. W. Ralston C. G. Wells |
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| Affiliation: | (1) Department of Botany, Duke University, Durham, NC, USA;(2) School of Forestry and Environmental Studies, Duke University, Durham, NC, USA;(3) Forest Science Laboratory, Research Triangle Park, NC, USA;(4) Present address: Department of Botany and Plant Pathology, University of New Hampshire, 03824 Durham, NH, USA |
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| Abstract: | Summary The carbon cycle of a loblolly pine plantation in North Carolina was examined during its 12th through 16th years from planting. Net primary production during the study period averaged 2056 g C m-2 year-1. With autotrophic respiration equal to 2068 g C, the calculated gross production was 4124 g C m-2 year-1. Heterotrophic respiration of 694 g C m-2 year-1 resulted in net ecosystem production of 1362 g C m-2 year-1. In carbon cycle comparisons between forest ecosystems, autotrophic respiration rates were found to be closely coupled to regional temperature. |
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