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ID 190
本文ファイル
別タイトル
Spatial distribution of SiO2 flux in Ikuchijima Island, Hiroshima Prefecture.
著者
重枝 豊実
齋藤 光代
吉田 浩二
竹井 務
峯 孝樹
キーワード
Spatial distribution
SiO2flux
Chemical weathering
Ikuchijima Island
NDC
公害・環境工学
抄録(英)
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.
掲載誌名
広島大学総合科学部紀要. IV, 理系編
29巻
開始ページ
95
終了ページ
103
出版年月日
2003-12
出版者
広島大学総合科学部
寄与者
国立情報学研究所
ISSN
1340-8364
NCID
SelfDOI
言語
日本語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
部局名
総合科学研究科
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