枯れヨシ根圏における無機態窒素の挙動

概要

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Annual efficiency must be investigated in water purification using vegetation of the reed s . In this study, the laboratory experiment was carried out on the behavior of nitrification and denitrification in the rhizosphere of the withered reed using water culture equipment. The result showed that the denitrification in the rhizosphere of lived reed would be continuously generated using nitrate nitrogen formed in the nitrification when the anaerobic region was formed because of the oxygen consumption following the nitrification in the microaerobic region The oxygen supply to the rhizosphere of the withered reed slowed at the night since the uptake of ammonium nitrogen by the root is not generated, which formed a region where the nitrification was difficult to happen. Therefore, it was shown that there were small generation of nitrate nitrogen and that it brought about the situation in which the denitrification is difficult to be generated, and that they could not expect the remarkable nitrogen removal compared to reed rhizosphere in period of growth.
福島工業高等専門学校の論文