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| Piriou, Jean-yves; Coic, Daniel; Merceron, Michel. |
| The coastal marsh of Kervigen is located near by the bay of Douarnenez and its 22 hectares are almost entirely covered by reeds. An experiment was there carried out to assess the nitrogen flux depletion of a small stream, the Kerharo. That one has a 45 km 2 mostly agricultural drainage basin. Due to its nitrate loadings to the next sandy beach, it feeds a green algae (Ulva) proliferation. In order to control its nitrogen fluxes, the stream was partly diverted through a part of the marsh (9 ha), before it was allowed to go back to the main bed. Thus a collapsible weir was set up during several springs and summers, i.e. the growing period of Ulva. The nitrate stripping off the going through flux is within a 30 to 90 % range,that is important (175 kg N03... |
| Tipo: Text |
Palavras-chave: Algae; Nitrogen; Ulva; Nitrate depletion; Costal marsh; Algue; Azote; Ulva; Abattement de nitrate; Marais côtier. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/1999/rapport-64.pdf |
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| Merceron, Michel; Piriou, Jean-yves; Coic, Daniel. |
| The coastal marsh of Kervigen is located near by the bay of Douarnenez and its 22 hectares are almost entirely covered bV reeds. An experiment was there carried out to assess the nitrogen flux depletion of a sma/l stream, the Kerharo. The last one has a 45 I<m2, mostlv agricultural, drainage basin. Due to its nitrate loadings to the nexl sandy beach, it feeds a green algae (U iva) proliferation. In order to control its nitrogen fluxes, the stream was partly divelted through a part of the marsh (9 ha), before it was allowed ta go back to the main bed. Thus a collapsible weir was set up during severalsprings and summers, i.e. the growing period ofulva. The nitrate stripping off the going through flux is withina60 to 90 % range, thal is important (about... |
| Tipo: Text |
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| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/1997/acte-3335.pdf |
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