Fire Safety Science Digital Archive

In this article, according to observing material of forest experimental fire field, of actual fire field, and available research achievements at home and abroad, classifications of different forest fire intensity, time scale and vertical space scale are further analysed and discussed. Relations among way, direction, rate of forest fire spread, forest fire intensity and natural wind field. i. e. (1) Spread way and spread rate of different forest fire intensity, affected by natural wind field; (2) Condition and mechanism of continuous spread and surmount spread of different forest fire intensity affected by natural wind field.