泥石流等级和灾度的定量计算

QUANTITATIVE CALCULATION OF MAGNITUDE AND DISASTER DEGREE OF DEBRIS FLOW

泥石流等级是描述一次泥石流规模大小的定量指标,泥石流灾度是描述一次泥石流造成社会损失大小的定量指标。这两个指标概念明确,简单易行,有利于使描述泥石流规模大小和灾情程度的术语逐步规范化、定量化和普及化。

According to the calculating principle of wind scale and earthquake magnitude, the concepts of magnitude and disaster degree of debris flow are put forward. Magnitude of debris flow is a quantitative target for describing one debris flow scale, which is calculated by means of total volume of one debris flow. Disaster degree of debris flow is a quantitative target for describing one social loss caused by debris flow, which is calculated by means of death count and direct loss in economy caused by one debris flow. Both of them are of a great many merits in regard to theory and application. Their concept is explicit and their application is easy,which has an active significance for reduction of debris flow.