| Registro completo |
| Provedor de dados: |
OMA
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| País: |
Belgium
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| Título: |
An experiment on the relative importance of denitrification, nitrate reduction and ammonification in coastal marine sediment
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| Autores: |
Goeyens, L.
De Vries, R.T.P.
Bakker, J.F.
Helder, W.
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| Data: |
1987
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| Ano: |
1987
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| Palavras-chave: |
Ammonia
Biogeochemical cycle
Coastal zone
Denitrification
Nitrates
Nitrogen cycle
Sediments
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| Resumo: |
Simultaneous determinations of <sup>15</sup>N-nitrogen gas production, <sup>15</sup>N-ammonia formation by nitrate reduction and ammonia production from organic nitrogen were carried out after addition of <sup>15</sup>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<sup>-3</sup> wet sediment.d<sup>-1</sup>, nitrate reduction to ammonia occurred to a rate of 0.79 µmol N.cm <sup>-3</sup>.d <sup>-1</sup> and ammonification at 1.17 µmol N-cm <sup>-3</sup>.d <sup>-1</sup>. At the end of the incubation experiment (after 30 h) 63% of the originally added <sup>15</sup>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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3169
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| Fonte: |
%3Ci%3ENeth.+J.+Sea+Res.+21%283%29%3C%2Fi%3E%3A+171-175
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| Direitos: |
info:eu-repo/semantics/restrictedAccess
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