Data/hora: 05/06/2024 17:05:06

Provedor de dados: 	27	
País: 	Belgium	
Título: 	An experiment on the relative importance of denitrification, nitrate reduction and ammonification in coastal marine sediment	
Autores: 	Goeyens, L.; De Vries, R.T.P.; Bakker, J.F.; Helder, W.	
Data: 	1987	
Ano: 	1987	
Palavras-chave: 	Ammonia; Biogeochemical cycle; Coastal zone; Denitrification; Nitrates; Nitrogen cycle; Sediments.	
Resumo: 	Simultaneous determinations of &lt;sup&gt;15&lt;/sup&gt;N-nitrogen gas production, &lt;sup&gt;15&lt;/sup&gt;N-ammonia formation by nitrate reduction and ammonia production from organic nitrogen were carried out after addition of &lt;sup&gt;15&lt;/sup&gt;N-nitrate to anaerobically incubated sediment slurries from a location in the Dutch Wadden Sea. The rate of nitrogen gas production was 1.75 µmol N.cm&lt;sup&gt;-3&lt;/sup&gt; wet sediment.d&lt;sup&gt;-1&lt;/sup&gt;, nitrate reduction to ammonia occurred to a rate of 0.79 µmol N.cm &lt;sup&gt;-3&lt;/sup&gt;.d &lt;sup&gt;-1&lt;/sup&gt; and ammonification at 1.17 µmol N-cm &lt;sup&gt;-3&lt;/sup&gt;.d &lt;sup&gt;-1&lt;/sup&gt;. At the end of the incubation experiment (after 30 h) 63% of the originally added &lt;sup&gt;15&lt;/sup&gt;N-nitrate was present as nitrogen gas, 32% ended up as ammonia and ~ 4% as particulate organic nitrogen. Ammonia production by degradation of organic nitrogen compounds was the most important process in building up the ammonia pool in the anaerobic sediment incubation.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3169	
Fonte: 	%3Ci%3ENeth.+J.+Sea+Res.+21%283%29%3C%2Fi%3E%3A+171-175	
Fonte: 	info:eu-repo/semantics/restrictedAccess