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SEA FLUX OF TRACE METALS IN SAANICH INLET 被引量:1

SEA FLUX OF TRACE METALS IN SAANICH INLET
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摘要 The sea fluxes of trace metals, POC, and settled material were studied in anoxic sea water, Saanich Inlet, B.C., Canada with sediment traps. This paper discusses the change of mass fluxes of sediment, trace metals and POC for various seasons and depths. The annual mean of settled material is 1.56 g.m-2 .a-1, 84.6 mg. m-2. a-1 for POC, 60.0 mg.m-2. a-1 for Cu, 16.5 mg.m-2.a-1 for Pb, 189 mg.m-2. a-1 for Zn, 2.20mg.m-2.a-1 for Cd,699 mg.m-2.a-1 for Fe,38.8 mg.m-2.-1 for Co, and 84.6 mg.m-2.a-1 for Ni.The relations between the average fluxes of trace metals and POC, the fluxes of trace metals and settled matter, and the sea fluxes of trace metals and Fe are in linear progression. The resident times of elements as calculated from sea flux, are 1.1 a. for Cu, 0.014 a. for Pb, 0.50 a. for Zn, 3.8 a. for Cd, 0.16 a. for Fe, 0.39 a. for Co,and 1.14 a. for Ni.The order of resident times is as follows: Pb-Fe-Co-Zn-Cu-Ni-Cd. The metal resident times in Saanich Inlet are shorter than the values estimated for the The sea fluxes of trace metals, POC, and settled material were studied in anoxic sea water, Saanich Inlet, B.C., Canada with sediment traps. This paper discusses the change of mass fluxes of sediment, trace metals and POC for various seasons and depths. The annual mean of settled material is 1.56 g.m-2 .a-1, 84.6 mg. m-2. a-1 for POC, 60.0 mg.m-2. a-1 for Cu, 16.5 mg.m-2.a-1 for Pb, 189 mg.m-2. a-1 for Zn, 2.20mg.m-2.a-1 for Cd,699 mg.m-2.a-1 for Fe,38.8 mg.m-2.-1 for Co, and 84.6 mg.m-2.a-1 for Ni.The relations between the average fluxes of trace metals and POC, the fluxes of trace metals and settled matter, and the sea fluxes of trace metals and Fe are in linear progression. The resident times of elements as calculated from sea flux, are 1.1 a. for Cu, 0.014 a. for Pb, 0.50 a. for Zn, 3.8 a. for Cd, 0.16 a. for Fe, 0.39 a. for Co,and 1.14 a. for Ni.The order of resident times is as follows: Pb-Fe-Co-Zn-Cu-Ni-Cd. The metal resident times in Saanich Inlet are shorter than the values estimated for the open ocean. It illustrates that the biochemical processes in shallow Saanich Inlet are faster than those in the open ocean, and that debries of plankton and fecal pellets of zooplankton play an important role in vertical transport of organic carbons.
出处 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 1989年第4期345-354,共10页 中国海洋湖沼学报(英文版)
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  • 1Zhan Binqiu,C. S. Wong,W. K. Johnson.Controlling mechanisms for the trace metals, (Cu, Zn, Cd, Fe, Co and Ni) in anoxic sea water in Saanich Inlet, British Columbia, Canada[J]. Chinese Journal of Oceanology and Limnology . 1987 (3)
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  • 4K. W. Broland.Oceanographic distributions of cadmium, zinc, nickel and copper in the North Pacific. Earth and Planet . 1980
  • 5David,D.Metal complex formation in sulphidic sea water. Marine Chemistry . 1985
  • 6Duchart,P.,Calvert,S. E.,Price,W. B.Distribution in th pore water of shallow water marine sediments. Limnology and Oceanography . 1973
  • 7Dyrsson,D.,Wedbog,M.,Olauson,E.,Cato,I.Major and minor elements, chemical speciation in estuarine waters. Chemistry and Biogeochemistry of Estuaries . 1980
  • 8Emerson,S.,Jacobs,L.,Tebo,B.,Wong,C.S.The behaviors of trace metals in marine anoxic waters: Solubility at the oxygen-hydrogen sulfide interface. Trace Metals in Sea Water . 1983
  • 9Flegal,A. R.,Patterson,C. C.Vertical concentration profile of lead in the central Pacific at 15 °N and 20 °S. Earth and Planet . 1982
  • 10Herliveaux,R. H.Oceanography of Saanich Inlet in Vancouver Island, British Columbia. Journal of the Fisheries Research Board of Canada . 1962

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