Role of dissolved organic nitrogen (DON) in soil N cycling in grassland soils

2004 ◽  
Vol 36 (5) ◽  
pp. 749-756 ◽  
Author(s):  
David L. Jones ◽  
David Shannon ◽  
Daniel V. Murphy ◽  
John Farrar
Keyword(s):  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
N Cycling ◽  
Soil N ◽  
Grassland Soils

Examining the coupling of carbon and nitrogen cycles in Appalachian streams: the role of dissolved organic nitrogen

Ecology ◽  
2011 ◽  
Vol 92 (3) ◽  
pp. 720-732 ◽  
Author(s):  
Brian D. Lutz ◽  
Emily S. Bernhardt ◽  
Brian J. Roberts ◽  
Patrick J. Mulholland
Keyword(s):  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Carbon And Nitrogen ◽  
Nitrogen Cycles ◽  
Appalachian Streams

Total Nitrogen Removal by Reverse Osmosis: Role of Biodegradable Dissolved Organic Nitrogen

2013 ◽  
Vol 2013 (19) ◽  
pp. 242-256 ◽  
Author(s):  
Murthy Kasi ◽  
Mitchell Swanson ◽  
Halis Simsek ◽  
Steve Ahlschlager ◽  
Kent Ritterman ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Total Nitrogen ◽  
Nitrogen Removal ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Total Nitrogen Removal

Role of wetlands and developed land use on dissolved organic nitrogen concentrations and DON/TDN in northeastern U.S. rivers and streams

2004 ◽  
Vol 49 (4) ◽  
pp. 910-918 ◽  
Author(s):  
Brian A. Pellerin ◽  
Wilfred M. Wollheim ◽  
Charles S. Hopkinson ◽  
William H. McDowell ◽  
Michael R. Williams ◽  
...  
Keyword(s):  
Land Use ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Rivers And Streams ◽  
Nitrogen Concentrations

The role of dissolved organic nitrogen in phytoplankton nutrition, cell biology and ecology

Phycologia ◽  
1991 ◽  
Vol 30 (1) ◽  
pp. 1-89 ◽  
Author(s):  
N. J. Antia ◽  
P. J. Harrison ◽  
L. Oliveira
Keyword(s):  
Cell Biology ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen

A Simple Method for Estimating the 15N Content of Dissolved Organic Matter (DO15N) in N-Cycling Studies

1987 ◽  
Vol 44 (1) ◽  
pp. 130-133 ◽  
Author(s):  
R. P. Axler ◽  
J. E. Reuter
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Optical Emission ◽  
Isotopic Analysis ◽  
N Cycling ◽  
Emission Spectrometry ◽  
Simple Method ◽  
Total Pool ◽  
Tracer Experiments

A method is described for isolating the total pool of dissolved organic nitrogen (DON) from oligotrophic lake water for subsequent isotopic analysis of the15N/14N ratio in tracer experiments. The procedure involves reducing an acidified filtered sample with elemental zinc to convert nitrate + nitrite to ammonium and then analyzing and sparging with N2 to remove ammonia. The residue (DON) is evaporated to dryness, rehydrated, spotted on a filter, and vacuum ampulated for micro-Dumas conversion to N2 and isotopic analysis by optical emission spectrometry. We have used the method to accurately estimate 15N enrichments of < 1 atom-% in DON collected from 150-mL samples of [15N]nitrate-enriched mesocosms in Castle Lake, California.

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