. Carbon and the biosphere; proceedings of the 24th Brookhaven symposium in biology, Upton, , May 16-18, 1972. Carbon cycle (Biogeochemistry). CARBON IN ESTUARIES 233 200. â 100 JUNE JULY AUG. SEPT. OCT. NOV. DEC. Fig. 4 The flux of dissolved organic carbon (DOC) and total C02 through the Flax Pond channel in 1971. Losses from Flax Pond are indicated below the zero line. Sedimentation Some fraction of the fixed carbon entering estuaries participates in exchanges with sediments, driving segments of such important mineral cycles as S and N, discussed elsewhere in this symposium. Accumulation
. Carbon and the biosphere; proceedings of the 24th Brookhaven symposium in biology, Upton, , May 16-18, 1972. Carbon cycle (Biogeochemistry). CARBON IN ESTUARIES 233 200. â 100 JUNE JULY AUG. SEPT. OCT. NOV. DEC. Fig. 4 The flux of dissolved organic carbon (DOC) and total C02 through the Flax Pond channel in 1971. Losses from Flax Pond are indicated below the zero line. Sedimentation Some fraction of the fixed carbon entering estuaries participates in exchanges with sediments, driving segments of such important mineral cycles as S and N, discussed elsewhere in this symposium. Accumulations of fossil fuels, peat, and shallow organic sediments leave little question of the importance of sedimentation in removing carbon from circulation, at least temporarily. The rate of sedimentation is measurable in part. In the marsh at Barnstable, Mass., the rate of accumulation of peat was measured by Redfield and Rubin,19 as indicated in Fig. 5. A change in the rate of rise of water against the land accounts for the shift in slope of the curve and emphasizes the importance of this factor in determining storage of C. In the modern world we have seen many examples of how rapidly eutrophication of estuaries and other shallow-water bodies can build substantial accumulations of organic sediments locally. Worldwide, however, it seems reasonable to assume that water-level fluctuations are more important in affecting the rate of accumulation of C in estuarine sediments than other factors. The maximum rate at which C can. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Brookhaven National Laboratory; Woodwell, G. M; Pecan, Erene V. [Washington] Technical Information Center, U. S. Atomic Energy Commission; [available from National Technical Information Service, Springfield, Va. ]
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