沖縄島における流域単位での赤土砂の流出特性について

DOI Web Site 被引用文献10件 参考文献7件

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タイトル別名
  • Red sediment outflow from some basins in Okinawa
  • オキナワトウ ニ オケル リュウイキ タンイ デ ノ アカ ドシャ ノ リュウシュツ トクセイ ニ ツイテ

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抄録

In Okinawa, erosion of red sediment called Kunigami Maaji and its sedimentation in reef area cause serious environmental problem. We have made hydrological observations of red sediment discharge in 4 basins in Taira River, and clarified the followings.<br>1) In basin with broad pineapple fields, red sediment discharge at each rain event amount to some hundreds kilograms per ha and SS of river will come up to some thousands milligrams per little.<br>2) In the basin with broad pineapple fields, SS of river increases as rain intensity increase.<br>3) The relation between landuse in basins and SS or sediment discharge shows that pineapple fields are the main source of red sediment outflow.

収録刊行物

  • 砂防学会誌

    砂防学会誌 54 (3), 39-46, 2001

    Japan Society of Erosion Control Engineering

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