scholarly journals Contrasting patterns of dissolved organic nitrogen release by two size fractions of estuarine plankton during a period of rapid NH/ consumption and N02-production

1993 ◽  
Vol 96 ◽  
pp. 291-299 ◽  
Author(s):  
DA Bronk ◽  
PM Glibert
Keyword(s):  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Nitrogen Release ◽  
Size Fractions ◽  
Estuarine Plankton

scholarly journals Nitrogen Release in Pristine and Drained Peat Profiles in Response to Water Table Fluctuations: A Mesocosm Experiment

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Merjo P. P. Laine ◽  
Rauni Strömmer ◽  
Lauri Arvola
Keyword(s):  
Water Table ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Mesocosm Experiment ◽  
Nitrogen Release ◽  
Hydrological Conditions ◽  
Water Table Fluctuations ◽  
Drying And Rewetting ◽  
Response To Water ◽  
Artificial Water

In the northern hemisphere, variability in hydrological conditions was suggested to increase as a consequence of climate warming, which may result in longer droughts than the area has experienced before. Due to their predominately anoxic conditions, peatlands are expected to respond to changes in hydrological conditions, such as successive drying and rewetting periods. As peatlands are rich in organic matter, any major changes in water table may influence the decomposition of it. The hydrological conditions may also influence release of nutrients from peat profiles as well as affect their transport to downstream ecosystems. In our mesocosm experiment, artificial water table fluctuations in pristine peat profiles caused an increase in dissolved organic nitrogen (DON) and ammonium(NH4+-N)concentrations, while no response was found in drained peat profiles, although originating from the same peatland complex.

Nitrogen Uptake, Dissolved Organic Nitrogen Release, and New Production

Science ◽  
1994 ◽  
Vol 265 (5180) ◽  
pp. 1843-1846 ◽  
Author(s):  
D. A. Bronk ◽  
P. M. Glibert ◽  
B. B. Ward
Keyword(s):  
Nitrogen Uptake ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Nitrogen Release ◽  
New Production

Dissolved Organic Nitrogen Release and Bacterial Activity in the Upper Layers of the Atlantic Ocean

2006 ◽  
Vol 51 (4) ◽  
pp. 487-500 ◽  
Author(s):  
Marta M. Varela ◽  
Antonio Bode ◽  
Xosé Anxelu G. Morán ◽  
Joaquín Valencia
Keyword(s):  
Atlantic Ocean ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Bacterial Activity ◽  
Nitrogen Release
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