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タイトルヨミ
オオハシガワ ヲ ソジョウ スル ヒンサンソ スイカイ ノ ジツジョウ ト シンジコ ニ オヨボス エイキョウ
日本語以外のタイトル
Actual Situation of Movement of Anoxic Water through the Ohashi River and Its Effects on Lake Shinji
ファイル
言語
日本語
著者
藤井 智康
森脇 晋平
奥田 節夫
内容記述(抄録等)
It is well known that the highly saline water and anoxic water mass in the lower layer of Lake Nakaumi frequently creep up towards the Ohashi River, and this water sometimes directly flow into Lake Shinji through the Ohashi River(fujii, 1996, 1998), but the process of the encroachment of anoxic water mass through the Ohashi River is unknown in detail. Recently, many filed experiment are carried out as a countermeasure of anoxic water extinction in the Ohashi River, but little is known about the effect of countermeasure. As a beginning of the verification on its effects, we calculated the oxygen deficit amount based on observation results. Therefore, we found that the oxygen deficit amount was 242 kg in the period of less than DO 1.5 mg・l.1, and dissolved oxygen concentration deviation flux changed in the range of from 0 to 50 g・sec.1. Consequently, it was found that the supply of oxygen was necessary for several 10 g・sec.1 to satisfy the inhabiting condition of the corbicula japonica PRIME.
主題
tidal river
saline water intrusion
oxygen deficit amount
掲載誌名
Laguna : 汽水域研究
13
開始ページ
1
終了ページ
7
ISSN
21852995
発行日
2006-06
NCID
AN10439529
出版者
島根大学汽水域研究センター
資料タイプ
紀要論文
ファイル形式
PDF
著者版/出版社版
出版社版
部局
研究・学術情報本部 エスチュアリー研究センター
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