GISを用いた嘉瀬川流域における伝統的治水技術の検証

抄録

In the Saga Plain the effective flood controls including catchments basin operations had been since from the Edo period. It is very useful for future flood control technology to quantitatively clarify those functions. In this study, storage functions of this field were solved by using GIS and the usefulness of this traditional technology on flood control is verified. A result of the analysis reveals that the studied river basin has storage capacity equivalent to a small reservoir. This traditional technology may be effective against countermeasure of the disaster reduction for a flood exceeding design levels and also be very helpful for the future plan of the flood control in Japan.