Tetsuya Ishida, Keisuke Nakayama, Tomonari Okada, Yasuyuki Maruya, Kiyofumi Onishi and Mio Omori
Release Date: May 29, 2010
Suspended sediment transport in a river basin estimated by chemical composition analysis
Tetsuya Ishida1), Keisuke Nakayama2), Tomonari Okada3), Yasuyuki Maruya4), Kiyofumi Onishi4) and Mio Omori5)
1) Shinanogawa River Office, Hokuriku Regional Department Bureau, Ministry of Land, Infrastructure, Transport and Tourism
2) Department of Civil and Environmental Engineering, Kitami Institute of Technology
3) Marine Environment Division, National Institute for Land and Infrastructure Management
4) Graduate School of Civil Engineering, Kitami Institute of Technology
5) Abashiri Development and Construction Department, Hokkaido Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism
(Received: February 15, 2010)
(Accepted for publication: May 18, 2010)
Production and transportation of suspended sediment was investigated by sampling surface soils in 18 domains over an entire river basin. Particle size distributions alone suggested that all domains were a source of suspended sediment. Chemical composition analysis however showed that the transport rate of suspended sediment was more closely related to the type of surface soil than to land use. A method was developed which enables estimation of the relative suspended sediment transport rates from each domain of a river basin to its downstream end. The model’s validity was verified through good agreement with field sampling results.
To cite this article:
Tetsuya Ishida, Keisuke Nakayama, Tomonari Okada, Yasuyuki Maruya, Kiyofumi Onishi and Mio Omori: “Suspended sediment transport in a river basin estimated by chemical composition analysis”, Hydrological Research Letters, Vol. 4, pp.55-59, (2010) .
Copyright (c) 2010 Japan Society of Hydrology and Water Resources