Fluvial terraces in the upper reaches of rivers are often used as the basis for the evaluation of the crustal deformation over inland region in Japan, however their developments have been poorly understood. Therefore, I analyze the terrace gravel, tephra (volcanic products), river morphology, and reconstruct the fill terrace development considering the sediment transportation from the mountain slopes and tributaries to the trunk river in order to evaluate the uplifting rate of the inland regions accurately. I believe that my research is important for not only tectonic geomorphology but also understanding sediment routing systems of rivers.
Takahashi, T. and Sugai, T. (2018) Tributary effects on fluvial terrace development since the last interglacial in the upper Tama River valley, central Japan. Quaternary International, 471, 318-331, doi:10.1016/j.quaint.2017.11.036
Takahashi, T. and Sugai, T. (2020) Reexamination of the Fluvial Terrace Development in the Nagatoro Gorge and the Development of Longitudinal Profile of the Ara River in the Kanto District, Central Japan. Journal of Geography (Chigaku Zasshi), 129(1), 123-140 (in Japanese with English abstract).