Features on torrential floods and its precaution in Shaanxi province

The author presents the definition of the torrential floods,analyses on forming condition and influential factors of torrential floods hazards for Shaanxi province.From the temporal aspect of view,the torrential flood is of multiple terms and multiple occurring in the same term.It coincides with mud flows and land slides.Most torrential floods occur from July to September in every year and a few from April to June in every year.From the spatial aspect of view,it is characterized by concentration,controlling by rain storm centers and topography.Finally,the author presents the high-potential occurring zones of the to rrential floods and its precautions.