Floods are nowadays a plague throughout the world. Owing to the baneful aftermath of the floods, people have developed several adaptation strategies. The aim of this research work is to study the adaptation strategies of the corn growing to the risk of flood in the overturning basin from Couffo to Lanta.
To achieve this goal, the daily rainfall data of 1971-2015, the agricultural statistics, the peak flows of 1971-2015 were respectively collected in the ASECNA, in the CERPA and the DGEau. The collected data were handled by the methods of the descriptive statistics such as the average arithmetic, the standard deviation. A frequent analysis was made to consider the values of hydro pluviometric events and their periods of return.
The analysis of the data shows that the recurring floods in the basin are caused by the annual daily maximal rainy heights located between 74 and 189mm. In the same vein, the recurring floods responsible for the fluvial flooding in the basin are caused by the maximal flows of which values are between 63 and 208m3/s. Due to the recurrence of the floods, people developed several strategies in the production of the corn. Among these is the adoption of new varieties of short cycle, the new methods of preservations.