Global Biogeochemical Cycles

Cover image for Vol. 28 Issue 3

Accepted Articles (Accepted, unedited articles published online and citable. The final edited and typeset version of record will appear in future.)

Impact Factor: 4.682

ISI Journal Citation Reports © Ranking: 2012: 4/74 (Meteorology & Atmospheric Sciences); 6/172 (Geosciences Multidisciplinary); 11/210 (Environmental Sciences)

Online ISSN: 1944-9224

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  1. 1 - 8
  1. Research Articles

    1. Linking variability in soil solution dissolved organic carbon to climate, soil type and vegetation type

      Marta Camino-Serrano, Bert Gielen, Sebastiaan Luyssaert, Philippe Ciais, Sara Vicca, Bertrand Guenet, Bruno De Vos, Nathalie Cools, Bernhard Ahrens, Altaf Arain, Werner Borken, Nicholas Clarke, Beverley Clarkson, Thomas Cummins, Axel Don, Elisabeth Graf Pannatier, Hjalmar Laudon, Tim Moore, Tiina Nieminen, Mats B. Nilsson, Matthias Peichl, Luitgard Schwendenmann, Jan Siemens and Ivan Janssens

      Accepted manuscript online: 10 APR 2014 09:58PM EST | DOI: 10.1002/2013GB004726

      Key Points

      • Soil DOC concentration is higher under coniferous forest than under broadleaves.
      • N, Fe and Al are important factors for DOC concentration variability in forests.
    2. Representative regional sampling of carbon dioxide and methane concentrations in hemiboreal headwater streams reveal underestimates in less systematic approaches

      Marcus B. Wallin, Stefan Löfgren, Martin Erlandsson and Kevin Bishop

      Accepted manuscript online: 31 MAR 2014 10:01AM EST | DOI: 10.1002/2013GB004715

      Key Points

      • 207 statistically selected headwaters were directly sampled for CO2 and CH4
      • All streams were supersaturated in CO2 and CH4 but with large spatial variation
      • Indirect methods will create bias in large scale data sets of headwater CO2
    3. Natural and anthropogenic variations in atmospheric mercury deposition during the Holocene near Quelccaya Ice Cap, Peru

      Samuel A. Beal, Meredith A. Kelly, Justin S. Stroup, Brian P. Jackson, Thomas V. Lowell and Pedro M. Tapia

      Accepted manuscript online: 31 MAR 2014 10:00AM EST | DOI: 10.1002/2013GB004780

      Key Points

      • Hg deposition did not vary with past precipitation, temperature, and volcanism
      • Maximum Holocene Hg fluxes occurred ~3 thousand years ago
      • Modern Hg fluxes are 3 times greater than natural fluxes
    4. Intra-annual variability of organic carbon concentrations in running waters: drivers along a climatic gradient

      Mattias Winterdahl, Martin Erlandsson, Martyn N. Futter, Gesa A. Weyhenmeyer and Kevin Bishop

      Accepted manuscript online: 31 MAR 2014 09:57AM EST | DOI: 10.1002/2013GB004770

      Key Points

      • Large-scale characterization of intra-annual DOC dynamics in running waters
      • Discharge, temperature and month significant predictors of DOC variability
      • Shifting patterns in DOC dynamics along a 1400 km climatic gradient
    5. The contribution of aeolian sand and dust to iron fertilization of phytoplankton blooms in southwestern Ross Sea, Antarctica

      V.H.L. Winton, G.B. Dunbar, N.A.N. Bertler, M-A. Millet, B. Delmonte, C.B. Atkins, J.M. Chewings and P. Andersson

      Accepted manuscript online: 27 MAR 2014 01:05PM EST | DOI: 10.1002/2013GB004574

      Key Points

      • Fe sources are required to sustain phytoplankton blooms in the Ross Sea
      • Local dust on sea ice contributes 2 orders of magnitude more than distal sources
      • Fe solubility averages 11% resulting in a Fe flux of 6.8 mg/m2/yr to SW Ross Sea
    6. APPLICATION OF REMOTE SENSING TO UNDERSTANDING FIRE REGIMES AND BIOMASS BURNING EMISSIONS OF THE TROPICAL ANDES

      Immaculada Oliveras, Liana O. Anderson and Yadvinder Malhi

      Accepted manuscript online: 27 MAR 2014 10:42AM EST | DOI: 10.1002/2013GB004664

      Key Points

      • Fire regimes show high intra and inter-annual variability
      • MODIS fire products under-estimate fire dynamics in the study area
      • Estimated biomass burning emissions are 5.4-9.7 Tg CO2 for the period 2000-2011
    7. The viscosity effect on marine particle flux – a climate relevant feedback mechanism

      J. Taucher, L.T. Bach, U. Riebesell and A. Oschlies

      Accepted manuscript online: 13 MAR 2014 09:12AM EST | DOI: 10.1002/2013GB004728

      Key Points

      • Global warming reduces seawater viscosity, thus accelerating particle sinking
      • Faster sinking enhances the biological pump and oceanic carbon uptake
      • This 'viscosity effect' is a previously overlooked climate-feedback mechanism
  2. Regular Articles

    1. Climate Warming Shifts Carbon Allocation from Stemwood to Roots in Calcium-Depleted Spruce Forests

      Andrei G. Lapenis, Gregory B. Lawrence, Alexander Heim, Chengyang Zheng and Walter Shortle

      Accepted manuscript online: 4 JAN 2013 12:00AM EST | DOI: 10.1002/gbc.20005

      Key Points

      • We found a link between climate warming and carbon allocation in spruce
      • Shift in carbon allocation was directed away from woody parts
      • Decrease in the fraction of woody parts reduces carbon sequestration potential

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