書誌事項
- タイトル別名
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- Runoff and Chemical Characteristics in Stream Water of Hilly Headwater Basins Underlain by Gravel and Weathered Granite.
抄録
Stream flow and stream water chemistry were monitored in four hilly headwater basins, where a fault divides the region into gravel area, and weathered granite area to evaluate the relationship between rainfall-runoff process and geology of the basin. Also, spatial distribution of specific discharge of streams and springs was observed in the surrounding area of the monitored basins, and tensiomentric observation was performed in gravel and weathered granite basins. The specific discharge of streams and springs was higher in gravel region than that in weathered granite region in high-flow season. The quick flow ratio. (defined by Hewlett and Hibbert, 1967) to the rainfall was higher in the gravel basins than that in the weathered granite basins, whereas the base flow rate during low-flow season was higher in the weathered granite basins than that in the gravel basins. The concentration of sodium, calcium, bicarbonate and silica in the stream water was higher in the weathered granite basins than that in gravel basins. Tensiometric and groundwater data shows that percolation rate in the unsaturated zone would be higher in the gravel basins than that in the weathered granite basins. The difference of percolation process in the gravel and weathered granite basins would result in the difference of runoff and stream water characteristics and the subsurface water movement between the gravel basins and the weathered basins.
収録刊行物
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- 水文・水資源学会誌
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水文・水資源学会誌 14 (3), 229-238, 2001
水文・水資源学会
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詳細情報 詳細情報について
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- CRID
- 1390282679415786112
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- NII論文ID
- 130003447448
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- ISSN
- 13492853
- 09151389
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可