scholarly journals The anthropogenic perturbation of the marine nitrogen cycle by atmospheric deposition: Nitrogen cycle feedbacks and the 15 N Haber-Bosch effect

2016 ◽  
Vol 30 (10) ◽  
pp. 1418-1440 ◽  
Author(s):  
Simon Yang ◽  
Nicolas Gruber
Keyword(s):  
Atmospheric Deposition ◽  
Nitrogen Cycle ◽  
Anthropogenic Perturbation ◽  
Marine Nitrogen Cycle

The response of the marine nitrogen cycle to ocean acidification

2018 ◽  
Vol 24 (11) ◽  
pp. 5031-5043 ◽  
Author(s):  
Nicola Wannicke ◽  
Claudia Frey ◽  
Cliff S. Law ◽  
Maren Voss
Keyword(s):  
Ocean Acidification ◽  
Nitrogen Cycle ◽  
Marine Nitrogen Cycle

The small unicellular diazotrophic symbiont, UCYN-A, is a key player in the marine nitrogen cycle

2016 ◽  
Vol 1 (11) ◽  
Author(s):  
Clara Martínez-Pérez ◽  
Wiebke Mohr ◽  
Carolin R. Löscher ◽  
Julien Dekaezemacker ◽  
Sten Littmann ◽  
...  
Keyword(s):  
Nitrogen Cycle ◽  
Marine Nitrogen Cycle

A marine nitrogen cycle fix?

Nature ◽  
2007 ◽  
Vol 445 (7124) ◽  
pp. 159-160 ◽  
Author(s):  
Douglas G. Capone ◽  
Angela N. Knapp
Keyword(s):  
Nitrogen Cycle ◽  
Marine Nitrogen Cycle

scholarly journals Assessing Marine Nitrogen Cycle Rates and Process Sensitivities With a Global 3‐D Inverse Model

2019 ◽  
Vol 33 (8) ◽  
pp. 1026-1047 ◽  
Author(s):  
T. S. Martin ◽  
F. Primeau ◽  
K. L. Casciotti
Keyword(s):  
Nitrogen Cycle ◽  
Inverse Model ◽  
Marine Nitrogen Cycle

scholarly journals The genome of Cyanothece 51142, a unicellular diazotrophic cyanobacterium important in the marine nitrogen cycle

2008 ◽  
Vol 105 (39) ◽  
pp. 15094-15099 ◽  
Author(s):  
E. A. Welsh ◽  
M. Liberton ◽  
J. Stockel ◽  
T. Loh ◽  
T. Elvitigala ◽  
...  
Keyword(s):  
Nitrogen Cycle ◽  
Marine Nitrogen Cycle

scholarly journals Box-modeling of the impacts of atmospheric nitrogen deposition and benthic remineralization on the nitrogen cycle of the eastern tropical South Pacific

2015 ◽  
Vol 12 (17) ◽  
pp. 14441-14479
Author(s):  
B. Su ◽  
M. Pahlow ◽  
A. Oschlies
Keyword(s):  
Nitrogen Fixation ◽  
Primary Production ◽  
Atmospheric Deposition ◽  
Water Column ◽  
Nitrogen Deposition ◽  
Nitrogen Cycle ◽  
South Pacific ◽  
Atmospheric Nitrogen Deposition ◽  
Atmospheric Nitrogen ◽  
Model Domain

Abstract. Both atmospheric deposition and benthic remineralization influence the marine nitrogen cycle, and hence ultimately also marine primary production. The biological and biogeochemical relations of the eastern tropical South Pacific (ETSP) to nitrogen deposition, benthic denitrification and phosphate regeneration are analysed in a prognostic box model of the oxygen, nitrogen and phosphorus cycles in the ETSP. In the model, atmospheric nitrogen deposition based on estimates for the years 2000–2009 is offset by half by reduced N2 fixation, with the other half transported out of the model domain. Both model- and data-based benthic denitrification are found to trigger nitrogen fixation, partly compensating for the NO3− loss. Since phosphate is the ultimate limiting nutrient in the model, enhanced sedimentary phosphate regeneration under suboxic conditions stimulates primary production and subsequent export production and NO3− loss in the oxygen minimum zone (OMZ). A sensitivity analysis of the local response to both atmospheric deposition and benthic remineralization indicates dominant stabilizing feedbacks in the ETSP, which tend to keep a balanced nitrogen inventory, i.e., nitrogen input by atmospheric deposition is counteracted by decreasing nitrogen fixation; NO3− loss via benthic denitrification is partly compensated by increased nitrogen fixation; enhanced nitrogen fixation stimulated by phosphate regeneration is partly removed by the stronger water-column denitrification. Even though the water column in our model domain acts as a NO3− source, the ETSP including benthic denitrification might become a NO3− sink.

The Marine Nitrogen Cycle

2008 ◽  
Vol 3 (4) ◽  
pp. 186-192
Author(s):  
Douglas G. Capone
Keyword(s):  
Nitrogen Cycle ◽  
Marine Nitrogen Cycle

New Developments in the Marine Nitrogen Cycle

2007 ◽  
Vol 107 (2) ◽  
pp. 577-589 ◽  
Author(s):  
Jay A. Brandes ◽  
Allan H. Devol ◽  
Curtis Deutsch
Keyword(s):  
Nitrogen Cycle ◽  
New Developments ◽  
Marine Nitrogen Cycle
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