The flood damage forecast of the Tianchi and Erdaobaihe drainage area

The Tianchi volcano occurred many land floods and volcanic mud-rock flows,so,large quantities of accumulation can be discovered by these events along the Songhuajiang River,Yalujiang River and Tumenjiang River drainage area.The paper is in an attempt to deduce a disastrous effect from floods and mud-rock flows,which can contribute some scientific data for lessening disasters and warning system in order to stave off a large scale disaster.