Befalling mythical folld dragon", a special kind of debris folw , only takes place in hill region that covered well with plants, such as Hufu and Zhangzhu town, Yixing city, Jiangsu province."

“发蛟”是江苏宜兴市湖镇、张渚等地植被覆盖良好的低山区发生的一种局地性泥石流灾害。