Abstract—This study purposes to estimate the spatial
distribution of vegetation removal on a gravel bed and braided
river, called the Tenryu in Central Japan. Aerial photograph
and flood flow simulation are used to observe the vegetation
change. High annual flood flow promotes vegetation removal
and low flood flow in the preceding year accelerates vegetation
invasion. Numerical simulation of flood flow can estimate the
spatial conditions of vegetation wash out or vegetation
remaining with minor misjudgment. Inclusion of sediment
transport equation in the simulation may reduce the
misjudgment during computation.
Index Terms—Bed shear stress, drag force, flood flow,
vegetation.
D. Islam, Y. Toda, and T. Tsujimoto are with Dept. of Civil Engineering,
Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan (e-mail:
deenislam77@gmail.com, ytoda@cc.nagoya-u.ac.jp,
ttsujimoto@genv.nagoya-u.ac.jp).
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Cite:Deen Islam, Yuji Toda, and Tetsuro Tsujimoto, "Short Term Trend of Vegetation Removal Estimation by Aerial Photograph Analysis and Flood Flow Simulation," Journal of Clean Energy Technologies vol. 2, no. 2, pp. 145-149, 2014.