2020 Volume 76 Issue 2 Pages I_1285-I_1290
The low-water channel banks of large rivers flowing through megalopolis, which have been developed as hydrophilic spaces, are recently recognized as the space for nature-rich river works because of its potential for habitats of a variety of aquatic lives and plants. A unique micro-scale brackish biotope can be created in the tidal flat along the brackish water river reach. In this study, a numerical model was developed for water salinity of inflow into a brackish tidal flats in the Gotannno Wand in the Arakawa River, which flows through the Tokyo metropolitan area, and a numerical model for salinity exchange between surface water and bed sediment in the tidal flat. The combination of the two model successfully reproduced the soil salinity variation during the six months from the late autumn to the early summer of 2020.
PROCEEDINGS OF HYDRAULIC ENGINEERING
