Redfield ratios revisited:: Removing the biasing effect of anthropogenic CO2

被引:0
|
作者
Körtzinger, A [1 ]
Hedges, JI [1 ]
Quay, PD [1 ]
机构
[1] Univ Washington, Sch Oceanog, Seattle, WA 98195 USA
关键词
D O I
暂无
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Redfield ratios of remineralization are calculated based on chemical data analysis on isopycnal surfaces. The concentrations of dissolved inorganic carbon used in this study were corrected for the anthropogenic CO2 content as estimated with a back-calculation technique. The corrections increased the apparent carbon remineralization by 25-30%, thus proving important for the reliable estimation of Redfield carbon ratios in the presence of anthropogenic CO2. Best estimates from this study largely confirm the more recently published Redfield ratios of remineralization. The following results were obtained for the latitude range 3-41 degreesN along 20-29 degreesW in the Northeast Atlantic Ocean: C-org:P ratio = 123 + 10; C-org:N ratio = 7.2 +/- 0.8; -O-2:C-org ratio = 1.34 +/- 0.06; -O-2:P ratio = 165 +/- 15; N:P ratio = 17.5 +/- 2.0. These ratios are in close agreement with the average composition of phytoplankton and represent respiration of organic matter consisting on average of 52% protein. 36% polysaccharide, and 12% lipid.
引用
收藏
页码:964 / 970
页数:7
相关论文
共 50 条
  • [1] Removing CO2
    Zhen, Zhiping
    CHEMICAL & ENGINEERING NEWS, 2008, 86 (03) : 7 - 7
  • [2] Anthropogenic CO2 in the ocean
    Peng, TH
    SCIENTIA MARINA, 2005, 69 : 85 - 96
  • [3] Anthropogenic CO2 emissions
    Raupach, M. R.
    Le Quere, C.
    Peters, G. P.
    Canadell, J. G.
    NATURE CLIMATE CHANGE, 2013, 3 (07) : 602 - 603
  • [4] Anthropogenic CO2 emissions
    M. R. Raupach
    C. Le Quéré
    G. P. Peters
    J. G. Canadell
    Nature Climate Change, 2013, 3 (7) : 603 - 604
  • [5] Removing CO2 from Air
    不详
    CLEAN-SOIL AIR WATER, 2009, 37 (02) : 103 - 103
  • [6] Reply to 'Anthropogenic CO2 emissions'
    Roger J. Francey
    Cathy M. Trudinger
    Marcel van der Schoot
    Rachel M. Law
    Paul B. Krummel
    Ray L. Langenfelds
    L. Paul Steele
    Colin E. Allison
    Ann R. Stavert
    Robert J. Andres
    Christian Rödenbeck
    Nature Climate Change, 2013, 3 (7) : 604 - 604
  • [7] The oceanic sink for anthropogenic CO2
    Sabine, CL
    Feely, RA
    Gruber, N
    Key, RM
    Lee, K
    Bullister, JL
    Wanninkhof, R
    Wong, CS
    Wallace, DWR
    Tilbrook, B
    Millero, FJ
    Peng, TH
    Kozyr, A
    Ono, T
    Rios, AF
    SCIENCE, 2004, 305 (5682) : 367 - 371
  • [8] CO2 AND PLANTS - REVISITED
    DAHLMAN, RC
    VEGETATIO, 1993, 104 : 339 - 355
  • [9] Anthropogenic CO2 in the Atlantic Ocean
    Gruber, N
    GLOBAL BIOGEOCHEMICAL CYCLES, 1998, 12 (01) : 165 - 191
  • [10] CO2 PHOTOLYSIS REVISITED
    SLANGER, TG
    BLACK, G
    JOURNAL OF CHEMICAL PHYSICS, 1978, 68 (04): : 1844 - 1849