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静岡大学地球科学研究報告 (1975-) >
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タイトル: 油壺湾の海草藻場における有機炭素・窒素の循環
その他のタイトル: Cycling of organic carbon and nitrogen in seagrass beds at Aburatsubo Bay
著者: 古田, 朱里
石川, 義朗
羽川, 貴弘
山本, 泰弘
鈴木, 款
掲載誌名: 静岡大学地球科学研究報告
出版者: 静岡大学地球科学教室
巻: 29
開始ページ: 13
終了ページ: 21
出版日付: 2002-07
NDC: 452
抄録: Field survey, chamber experiment and decomposition experiment were carried out in the seagrass beds at Aburatsubo Bay, Misaki, Kanagawa Prefecture for understanding cycling of organic carbon and nitrogen. Organic carbon and nitrogen in dissolved and particulate forms were determined in seawater, sediments and seagrass. Concentrations of dissolved organic carbon (DOC) and nitrogen (DON) in October were lower than those in April and July. April and July are productive seasons, while October is a season when consumption of organic matters exceeds production. DOC/DON ratio in seagrass beds in October was higher than those in April and July. The high C/N ratio in October was caused by microbial decomposition, while degradation of seagrass litters and/or suspended organic matter might be done more effectively in April and July. Decomposition process raised up the C/N ratio of seagrass leaves during the degradation process. Moreover, the C/N ratio in sediments is higher in deeper subbottom. Suspended organic matters were decomposed rapidly, whereas seagrass leaves were refractory. The difference of temporal change in C/N ratio between suspended organic matters and seagrass leaves may be due to the different decomposition processes. Contribution of dissolved organic matters (DOM) were greater than that of particulate organic matters (POM) for remineralization.
ISSN: 03886298 OPAC
NII論文ID: 110000413410 ciniia
NII書誌ID: AN00103190 OPAC ciniib
バージョン: publisher
出現コレクション:2002 29

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Others By: 古田, 朱里 -- 石川, 義朗 (イシカワ, ヨシロウ) -- 羽川, 貴弘 -- 山本, 泰弘 -- 鈴木, 款 (スズキ, ヨシミ) (Suzuki, Yoshimi)



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