INVESTIGATION ON THE HISTORICAL EVOLUTION OF ALLUVIAL DEPOSITS ALONG THE TENRYU RIVER AND THE ENSHU COAST
A field investigation was conducted to evaluate the long-term evolution of alluvial deposits along the Tenryu River as well as the Enshu Coast, where severe coastal erosion is observed. To identify the sediment movement processes, surface sediments were sampled along the Tenryu River route and the Enshu Coast beach, which covered a wide area with Tenryu River mouth in the middle. Simultaneously, a trench study was also conducted at 5 km from the river mouth to obtain sand samples in the old riverbed, which was used to compare with the present sand sample in order to estimate a historical evolution in sediment transport processes. Collected sand samples were investigated in terms of the scanned sand image and sediment magnetism analysis. A comprehensive picture regarding the spatial distribution and temporal variation of alluvial deposits in the corresponding fluvial system is presented.
Haijiang Liu Shinji Sato Yoshimitsu Tajima Guangwei Huang Hirokazu Fujiwara
Dept.of Civil Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku,Tokyo, 113-8656, Japan Dept.of Socio-Cultural Environmental Studies, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, C Dept.of Civil Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
国际会议
第四届亚太地区海岸会议(the Fourth International Conference on Asian and Pacific Coasts)
南京
英文
2007-09-21（万方平台首次上网日期，不代表论文的发表时间）