Global Biogeochemical Cycles

Cover image for Vol. 29 Issue 4

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

Impact Factor: 4.528

ISI Journal Citation Reports © Ranking: 2013: 8/174 (Geosciences Multidisciplinary); 9/76 (Meteorology & Atmospheric Sciences); 15/216 (Environmental Sciences)

Online ISSN: 1944-9224

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  1. 1 - 13
  1. Research Articles

    1. On the influence of “non-Redfield” dissolved organic nutrient dynamics on the spatial distribution of N2 fixation and the size of the marine fixed nitrogen inventory

      Christopher J. Somes and Andreas Oschlies

      Accepted manuscript online: 25 MAY 2015 05:59AM EST | DOI: 10.1002/2014GB005050

      Key Points

      • Large-scale datasets of DON and DOP constrain the global model
      • Preferential DOP remineralization and uptake stimulate additional N2 fixation
      • The marine fixed nitrogen inventory is sensitive to non-Redfield DOP cycling
    2. Environmental controls on the biogeography of diazotrophy and Trichodesmium in the Atlantic Ocean

      J. T. Snow, C. Schlosser, E.M.S. Woodward, M.M. Mills, E. P. Achterberg, C.A. Mahaffey, T.S. Bibby and C.M. Moore

      Accepted manuscript online: 23 MAY 2015 04:25PM EST | DOI: 10.1002/2015GB005090

      Key Points

      • Significant diazotrophic community in both north and south Atlantic
      • SST and pCO2 have limited role in diazotroph biogeography of tropical Atlantic
      • Combined effects of Fe and P control diazotrophy in (sub)-tropical Atlantic
    3. Processes Controlling the Distributions of Cd and PO4 in the Ocean

      Paul Quay, Jay Cullen, William Landing and Peter Morton

      Accepted manuscript online: 21 MAY 2015 09:47PM EST | DOI: 10.1002/2014GB004998

      Key Points

      • Cd/P of particles exported from the surface ocean doubles in HNLC regions.
      • Cd/PO4 variations in surface ocean and deep sea depends on Cd/P of degraded particles
      • Past changes in HNLC conditions would change Cd-PO4 relationship in deep sea.
    4. New model for capturing the variations of fertilizer-induced emission factors of N2O

      Feng Zhou, Ziyin Shang, Zhenzhong Zeng, Shilong Piao, Philippe Ciais, Peter A. Raymond, Xuhui Wang, Rong Wang, Minpeng Chen, Changliang Yang, Shu Tao, Yue Zhao, Qian Meng, Shuoshuo Gao and Qi Mao

      Accepted manuscript online: 20 MAY 2015 06:32AM EST | DOI: 10.1002/2014GB005046

      Key Points

      • Our models are powerful to perform upscaling of N2O fluxes
      • Climate dominate the EF distribution of China's agricultural soils
      • China's averaged N2O EF for paddy rice is twice as large as IPCC Tier 1 default
    5. Metals and Metalloids in Precipitation Collected during CHINARE Campaign from Shanghai, China to Zhongshan Station, Antarctica: Spatial Variability and Source Identification

      G. Shi, J. Teng, H. Ma, Y. Li and B. Sun

      Accepted manuscript online: 14 MAY 2015 05:34AM EST | DOI: 10.1002/2014GB005060

      Key Points

      • Metals and metalloids were measured in marine precipitation
      • Element levels in precipitation in south Indian Ocean are generally low
      • Human emissions have an important influence on element solubility
    6. Towards a parameterization of global-scale organic carbon mineralization kinetics in surface marine sediments

      K. Stolpovsky, A. W. Dale and K. Wallmann

      Accepted manuscript online: 14 MAY 2015 05:33AM EST | DOI: 10.1002/2015GB005087

      Key Points

      • The function predicts the rate-depth profile of particulate organic carbon.
      • Vertically-resolved POC degradation rate is a function the POC rain rate.
      • The model predicts a global denitrification and POC burial rate.
    7. Global Patterns and controls of soil organic carbon dynamics as simulated by multiple terrestrial biosphere models: current status and future directions

      Hanqin Tian, Chaoqun Lu, Jia Yang, Kamaljit Banger, Deborah N. Huntinzger, Christopher R. Schwalm, Anna M. Michalak, Robert Cook, Philippe Ciais, Daniel Hayes, Maoyi Huang, Akihiko Ito, Atul Jain, Huimin Lei, Jiafu Mao, Shufen Pan, Wilfred M. Post, Shushi Peng, Benjamin Poulter, Wei Ren, Daniel Ricciuto, Kevin Schaefer, Xiaoying Shi, Bo Tao, Weile Wang, Yaxing Wei, Qichun Yang, Bowen Zhang and Ning Zeng

      Accepted manuscript online: 11 MAY 2015 05:31AM EST | DOI: 10.1002/2014GB005021

      Key Points

      • Simulated historical (1901-2010) SOC dynamics varies largely among models
      • 10 TBMs agree that climate and land use change have reduced SOC stocks
      • Rising CO2 and N deposition are prone to increase SOC with varying magnitudes
    8. Temperature, oxygen, and vegetation controls on decomposition in a James Bay peatland

      Michael Philben, James Holmquist, Glen MacDonald, Dandan Duan, Karl Kaiser and Ronald Benner

      Accepted manuscript online: 6 MAY 2015 02:47PM EST | DOI: 10.1002/2014GB004989

      Key Points

      • Biochemical indices were used to determine decomposition in a peat core
      • Decomposition was highest with high oxygen exposure time and vascular vegetation
      • Higher temperatures during peat formation did not appear to affect decomposition
    9. You have full text access to this OnlineOpen article
      Spatial and temporal contrasts in the distribution of crops and pastures across Amazonia: A new agricultural land-use dataset from census data since 1950

      P. Imbach, M. Manrow, E. Barona, A. Barretto, G. Hyman and P Ciais

      Accepted manuscript online: 5 MAY 2015 01:31PM EST | DOI: 10.1002/2014GB004999

    10. N-loss isotope effects in the Peru oxygen minimum zone studied using a mesoscale eddy as a natural tracer experiment

      Annie Bourbonnais, Mark A. Altabet, Chawalit N. Charoenpong, Jennifer Larkum, Haibei Hu, Hermann W. Bange and Lothar Stramma

      Accepted manuscript online: 25 APR 2015 08:41AM EST | DOI: 10.1002/2014GB005001

      Key Points

      • Large N-loss signals were observed in a mesoscale eddy
      • Nitrite oxidation increases the overall isotope effect of nitrate reduction
      • Low isotope effects for net N-loss were estimated
    11. Patterns and drivers of change in organic carbon burial across a diverse landscape: insights from 116 Minnesota lakes

      Robert D. Dietz, Daniel R. Engstrom and N. J. Anderson

      Accepted manuscript online: 23 APR 2015 06:08PM EST | DOI: 10.1002/2014GB004952

      Key Points

      • Organic carbon (OC) burial has increased in most lakes during the past 150 years
      • Land use is the most important driver of spatiotemporal variation in OC burial
      • The greatest burial increase occurred shortly following Euro-American settlement
    12. Multi-century changes in ocean and land contributions to climate-carbon feedbacks

      J. T. Randerson, K. Lindsay, E. Munoz, W. Fu, J. K. Moore, F. M. Hoffman, N. M. Mahowald and S. C. Doney

      Accepted manuscript online: 21 APR 2015 05:01PM EST | DOI: 10.1002/2014GB005079

      Key Points

      • We assessed climate-carbon feedbacks with CESM1 to 2300 for RCP/ECP8.5
      • Ocean carbon sensitivity to climate change proportional to heat content
      • Climate influence on carbon largest in Atlantic Ocean and neotropical forests
    13. A revised global estimate of dissolved iron fluxes from marine sediments

      A. W. Dale, L. Nickelsen, F. Scholz, C. Hensen, A. Oschlies and K. Wallmann

      Accepted manuscript online: 7 APR 2015 06:20AM EST | DOI: 10.1002/2014GB005017

      Key Points

      • Global dissolved iron flux from margin sediments of 109 +/- 55 Gmol yr-1
      • Benthic dissolved iron flux has been underestimated in the marine iron cycle
      • Iron scavenging rates in water column probably higher than currently presumed

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