広島県生口島におけるSiO2 フラックスの空間分布特性

• 重枝 豊実

• 小野寺 真一

• 齋藤 光代

• 吉田 浩二

• 竹井 務

• 峯 孝樹

書誌事項

タイトル別名

• Spatial distribution of SiO2 flux in Ikuchijima Island, Hiroshima Prefecture.
• ヒロシマケン イクチジマ ニ オケル SiO2 フラックス ノ クウカン ブンプ トクセイ

抄録

To clarify topographic effects on dissolved SiO2 flux produced by chemical weathering in a graniticmountainous catchment, stream discharge were measured and water samples were collected from fifteen streamsin Ikuchijima Island, Seto Inland Sea. The results show that the dissolved SiO2 flux is controlled by streamdischarge, due to high amount of runoff compare to dissolved SiO2 concentration. However dissolved SiO2 fluxof catchment was not affected by horizontal two - dimensional features, such as catchment area, alluvial fanarea, and the catchment shape. On the other hand, streambed gradient of the catchment affects runoff and dissolvedSiO2 flux, but have no influence on dissolved SiO2 concentration. Useful water convergence degree ofthe catchment was calculated by multiplication of the inversion of streambed gradient by prolate degree ofcatchment. The estimated water convergence degree shows good correlation with dissolved SiO2 flux and runoff.

収録刊行物

• 広島大学総合科学部紀要. IV, 理系編

  広島大学総合科学部紀要. IV, 理系編 29 95-103, 2003-12

  広島大学総合科学部

キーワード

• Spatial distribution
• SiO2flux
• Chemical weathering
• Ikuchijima Island

詳細情報

• CRID: 1390572174805358208
• NII論文ID: 40006204436
• NII書誌ID: AN10435936
• ISSN: 13408364
• DOI: 10.15027/190
• NDL書誌ID: 6867747
• Web Site: http://ir.lib.hiroshima-u.ac.jp/00000190
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6867747
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用可