Investigation of the mechanism of the long-term evolution of the carbon cycle in the ecosystem of the Sevastopol bay
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We analyze the components of the carbon system of the Sevastopol bay waters and the balance of main sediment-forming substances using the data of field investigations in 1998–2008. The interannual variations of total inorganic carbon and the equilibrium partial pressure of carbon dioxide in the bay water are noted. An increase in the flux of carbon dioxide into the bay and in the content of organic carbon in bottom sediments is revealed, and an explanation of this phenomenon is given. The priority accumulation of organic carbon in the sediments of the bay is established. We assess the interannual variation in the relative abundances of organic and inorganic carbon as an index of the carbon cycle stability.
Keywordscarbon cycle components of the carbon system Sevastopol bay
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- 1.Anthropogenic Impact on Energy Fluxes and Cycles of Substances [in Russian], http://lib4all.ru/base/B3337/B3337Part71-416.php.
- 2.V. S. Savenko, “Global hydrological cycle and geochemical balance of phosphorus in the ocean,” Okeanologiya, 41, No. 3, 379–385 (2001).Google Scholar
- 3.I. I. Volkov and V. S. Savenko, A Survey of Studies on Chemistry and Geochemistry of the Ocean Supported by Grants of the RFFR in 1999 [in Russian], www.rfbr.ru.
- 4.R. E. Zeebe and D. Wolf-Gladrow, CO2 in Seawater: Equilibrium, Kinetics, Isotopes, Elsevier, Amsterdam (2001).Google Scholar
- 5.D. D. E. Bakker, H. J. W. de Baar, and Y. P. J. de Wilde, “Dissolved carbon dioxide in Dutch coastal waters,” Mar. Chem., No. 55, 247–263 (1996).Google Scholar
- 7.S. Kempe, Coastal Seas: A Net Source or Sink of Atmospheric Carbon Dioxide?, LOICZ Intern. Project Office, Texel (1995).Google Scholar
- 9.E. I. Ovsyanyi, R. B. Kemp, L. N. Repetin, and A. S. Romanov, “The hydrologo-hydrochemical regime of the Sevastopol bay under conditions of the anthropogenic action (according to observations carried out in 1998–1999),” in: Ecological Safety of Coastal and Shelf Zones and Complex Utilization of Resources of the Shelf [in Russian], EKOSI-Gidrofizika, Sevastopol (2000), pp. 79–103.Google Scholar
- 10.Yu. A. Gorbenko, Ecology of Marine Microorganisms of Periphyton [in Russian], Naukova Dumka, Kiev (1977).Google Scholar
- 11.E. A. Kuftarkova, “Seasonal carbon cycle of variation of components of the carbon system in the Sevastopol bay,” Ékol. Morya, Issue 1, 41–47 (1980).Google Scholar
- 12.O. G. Mironov, L. N. Kiryukhina, and I. A. Divavin, Sanitary Biological Studies in the Black Sea [in Russian], Gidrometeoizdat, St. Petersburg (1992).Google Scholar
- 13.O. G. Mironov, L. N. Kiryukhina, and S. V. Alemov, Sanitary Biological Aspects of the Ecology of Sevastopol Bays in the 20th Century [in Russian], ÉKOSI-Gidrofizika, Sevastopol (2003).Google Scholar
- 14.T. S. Osadchaya, E. I. Ovsyanyi, R. Kem, et al., “Organic carbon and oil hydrocarbons in bottom sediments of the Sevastopol bay (Black Sea),” Morsk. Ékol. Zh., 2, No. 2, 94–101 (2003).Google Scholar
- 15.O. G. Ignat’eva, A. S. Romanov, E. I. Ovsyanyi, et al., “Seasonal dynamics of components of the carbon system in the Sevastopol bay,” in: Ecological Safety of Coastal and Shelf Zones and Complex Utilization of Resources of the Shelf [in Russian], ÉKOSIGidrofizika, Sevastopol (2004), pp. 130–140.Google Scholar
- 16.V. A. Ivanov, E. I. Ovsyanyi, L. N. Repetin, et al., Hydrologo-Hydrochemical Regime of the Sevastopol Bay and Its Variations under the Action of Climatic and Anthropogenic Factors [in Russian], Preprint, Marine Hydrophysical Institute, Ukrainian Academy of Sciences, Sevastopol (2006).Google Scholar
- 17.O. G. Ignat’eva, E. I. Ovsyanyi, A. S. Romanov, et al., “Estimation of the state of the carbon system of waters and variations in the content of organic carbon in bottom sediments of the Sevastopol bay according to data of observations in 1998–2005,” Morsk. Gidrofiz. Zh., No. 2, 57–68 (2007).Google Scholar
- 18.Methods of Hydrochemical Studies of the Ocean [in Russian], Nauka, Moscow (1978).Google Scholar
- 19.Contemporary Methods of Hydrochemical Studies of the Ocean [in Russian], Academy of Sciences of the USSR, Moscow (1992).Google Scholar
- 20.Thermodynamics of the Carbon Dioxide System in Seawater, UNESCO, New York (1987).Google Scholar
- 21.F. J. Millero, Chemical Oceanography, CRC Press, Boca Raton, NY (1996).Google Scholar
- 22.D. S. Orlov and L. A. Grishina, Laboratory Course on Chemistry of Humus [in Russian], MGU, Moscow (1981).Google Scholar
- 23.V. S. Sokolov and E. G. Sokolova, “A simple gasometric method for determination of CaCO3 under field conditions,” in: Chemical Analysis of Marine Precipitations [in Russian], Nauka, Moscow (1980), pp. 42–46.Google Scholar
- 24.Yu. I. Lyakhin, V. P. Aleksandrov, and N. I. Pal’shin, “Calculation of a balance of exchange of CO2 between the ocean and the atmosphere for the water area of the Atlantic, Indian, and Pacific Oceans,” in: Study and Management of the World Ocean [in Russian], Leningrad Hydrometeorological Institute, Leningrad (1978), pp. 48–60.Google Scholar
- 25.E. A. Romankevich, “Organic matter of bottom sediments to the east of Japan and its influence on redox processes,” in: Biogeochemistry of Diagenesis of Sediments in the Ocean [in Russian], Nauka, Moscow (1976), pp. 5–19.Google Scholar
- 26.N. A. Orekhova and S. K. Konovalov, “Oxygen and hydrogen sulfide in bottom sediments of the Sevastopol bay,” in: Ecological Safety of Coastal and Shelf Zones and Complex Utilization of Resources of the Shelf [in Russian], ÉKOSI-Gidrofizika, Sevastopol (2009), pp. 48–56.Google Scholar