水文・水資源学会研究発表会要旨集
水文・水資源学会2014年度研究発表会
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【流出】
IDENTIFICATION OF DOMINANT SUSPENDED SEDIMENT SOURCES IN A RIVER BASIN USING X-RAY FLORESCENCE ANALYSIS
*Beitia CarlosNakayama KeisukeOhtsu NaofumiYamane MisaoYamasaki ShintaroMaruya YasuyukiKomai Katsuaki
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p. 100115-

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The transportation of materials with different chemical and physical properties from the headwaters all over a river basin up to the downstream end is a natural and indispensable mechanism to keep sound riverine ecosystems. However, from the aspect of ecological system, abnormal high sediment concentrations could cause biological, chemical and physical alterations of the river properties and secondary consequences at socio-economic range, such as decreasing in fishery production, rise in water treatment processes costs and loss of reservoirs storage capacity. Therefore, we made an attempt to use chemical composition analysis performed by X-rays fluorescence analysis (XRF) as a tool to identify the main sources of sediments from to the downstream end of a river basin.
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