Causes and Laws of Floods in Small and Medium Rivers in Jiangxi Province.

The main causes of floods in small and medium rivers in Jiangxi Province are meteorological factors, rainstorm factors and topographic factors. Based on the data of more than 600 floods from 19 hydrological stations in small and medium rivers in Jiangxi Province, the characteristics of floods in small and medium rivers are analyzed. The results show that the floods in small and medium rivers in Jiangxi Province had characteristics of strong seasonality, high frequency and strong suddenness, and were mainly local floods; rainstorm floods during May - June lasted for a long term, and had double peaks, multi-peaks or a single peak with a long duration. During July - September, floods usually had a single peak, and the duration was relatively short. [ABSTRACT FROM AUTHOR]