|Most recent IBA monitoring assessment|
|Year of assessment||Threat score (pressure)||Condition score (state)||Action score (response)|
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Banzu tidal flat consists of an estuary delta (43 ha) which lies on the northwestern side of the tide embankment on the right bank of the Obitsugawa river, and the Maehama tidal flat (1,400 ha) which lies ahead. The delta is salty marsh which vegetates mainly Phragmites australis, and through which a waterway influenced by both salty and fresh water runs. A part of the delta has Pleioblastus chino Makino community, Celtis sinensis japonica grove, a planted Pinus thunbergii grove and an artificial pond. Maehama is one of the largest natural sandy tidal flat in Japan, where the tide ebbs as far as 1.5 to 2 km offshore during spring tide. It has the tidal range of 2 m and the gradient of approximately 1/1000. Futtsu tidal flat is a sandy tidal flat located on the northeastern side of the Futtsumisaki cape. It has an algal field of Zostera marina L., and its eastern area is used for shellfish gathering. There is a promenade in the Pinus thunbergii forest. Its beach is well used for leisure activities.
BirdLife International (2020) Important Bird Areas factsheet: Banzu and Futtsu tidal flat. Downloaded from http://www.birdlife.org on 25/02/2020.