FLUXES AND MASSES OF ORGANIC-CARBON IN TH E OCEAN

Citation
Ea. Romankevich et Aa. Vetrov, FLUXES AND MASSES OF ORGANIC-CARBON IN TH E OCEAN, Geohimia, (9), 1997, pp. 945-952
Citations number
51
Categorie Soggetti
Geochemitry & Geophysics
Journal title
ISSN journal
00167525
Issue
9
Year of publication
1997
Pages
945 - 952
Database
ISI
SICI code
0016-7525(1997):9<945:FAMOOI>2.0.ZU;2-W
Abstract
The fluxes and masses of organic matter (OM) in the ocean were evaluat ed based on an analysis of data obtained by the Shirshov Institute of Oceanology as well as on published data on the content of dissolved an d particulate organic carbon in the surface layer of bottom sediments, in phytoplankton biomass, and in material introduced into the ocean f rom the land. The total influx of terrigenous OM from the land is esti mated at 0.66 x 10(15) g C. The major contributors to the influx are r iver discharge of dissolved (210 x 10(12) g C-org/yr) and particulate (250 x 10(12) g C-org/yr) matter and eolian precipitation (174 x 10(12 ) g C-org/yr). New data on primary productivity in the ocean (60 x 10( 15) g C-org/yr) and the amount of organic C buried in the marginal (15 0-240 x 10(12)) and deep-ocean (10 x 10(12) g C-org/yr) sediments are discussed. The fossilization coefficients of OM in sediments at the oc ean margin (0.8-1.3%), in the deep ocean (0.02%), and the world oceans as a whole (0.3-0.4%) are calculated.