干潟の土壌構造に及ぼす会水の流動の影響 Effects of Seawater Flow on the Soil Structure in Tidal Flat

この論文にアクセスする

この論文をさがす

著者

    • 李 正奎 LEE Jeoung Gyu
    • 広島大学工学部環境基礎化学講座 Department of Environmental Science, Faculty of Engineering, Hiroshima University
    • 鄭 正朝 CHEONG Cheong Jo
    • 広島大学工学部環境基礎化学講座 Department of Environmental Science, Faculty of Engineering, Hiroshima University
    • 岡田 光正 OKADA Mitsumasa
    • 広島大学工学部環境基礎化学講座 Department of Environmental Science, Faculty of Engineering, Hiroshima University
    • 馬場 栄一 BABA Eiichi
    • 広島大学地域協同研究センター Center for Technology Research and Development, Hiroshima University

抄録

The purpose of this study is to clarify the effects of flow of overlaying seawater on the soil structure in tidal flat. A natural-like man-made tidal flat and a typical man-made one, both located in a deep inlet an island of in Hiroshima Bay, were selected in this study. Bacterial population, organic matter content and silt content of the soil in the natural-like man-made tidal flat were higher than those in the man-made ones. The shear stress by seawater flow on the sediments of natural and constructed tidal flat was compared.The amounts of sediment trap and seawater flow rate in the typical man-made tidal flat were 4 times and 2 times, respectively, as high as these in the natural-like man-made tidal flat. The shear stress to the surface of the typical man-made tidal flat was higher than that of the natural-like man-made tidal flat. The frequencies of the shear stress higher than the critical value for silt transport in the typical man-made tidal flat were 1 to 17 times higher than that in the natural-like man-made one. These results indicate that the difference in the soil structure between the two tidal flat was due to the difference in the shear stress caused by seawater flow. Furthermore, the effects of the seawater flow on other tidal flats in Hiroshima Bay were investigated. The results also indicated that the profiles of shear stesses in man-made tidal flats were higher than these in natural ones. It is probable that the seawater flow plays an important role in determining soil structure in tidal flats.

収録刊行物

  • 水環境学会誌 = Journal of Japan Society on Water Environment  

    水環境学会誌 = Journal of Japan Society on Water Environment 22(8), 677-682, 1999-08 

    公益社団法人 日本水環境学会

参考文献:  15件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

被引用文献:  7件

被引用文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10004453086
  • NII書誌ID(NCID)
    AN10372439
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09168958
  • NDL 記事登録ID
    4834513
  • NDL 雑誌分類
    ZN5(科学技術--建設工学・建設業--都市工学・衛生工学)
  • NDL 請求記号
    Z16-1045
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ