2012 Fiscal Year Final Research Report
Spatial evaluation of sediment production rates by grain size based on topographical, geological and soil features in mountainous watersheds
| Project/Area Number |
23760466
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Hydraulic engineering
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| Research Institution | Kagoshima University |
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Principal Investigator |
SAITA Tomonori 鹿児島大学, 大学院理工学研究科, 准教授 (80432863)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 水工水理学 |
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| Research Abstract |
In this study, field observations on suspended sediment transport were carried out to evaluate fine sediment production rates in upstream sites of the Sendai River basin. And mapping of soil characteristics in the Kakuto Basin were carried out to detect dominant producing areas of fine sediments. As a result of these observations, it is clarified that the Hatsuki River basin, the most major branch of the upper Sendai River, is an area of a relatively high sediment production rate and that the southern part of Okuchi basin is on a depositional trend. In addition, a possibility of area classification on the space scale comparable to small watersheds based on elementary composition of soil is indicated.
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