Assessing soil properties and tidal behaviors as a strategy to avoid environmental degradation in developing new paddy fields in tidal areas.

Highlight: [•] Acid sulfate soils dominated the fluviomarine areas. [•] Micro-relief architectures (concave, flat, convex slopes) control water inundation depth. [•] Drainage canals would overcome water logging and allow paddy field development. [•] Understanding water management in relation to pyrite position is essential. [•] Depth to pyrite layer was directly related to thickness of surface fluvial deposit. [ABSTRACT FROM AUTHOR]