森林可燃物含水率与火险级关系的研究

THE RELATIONS BETWEEN WATER CONTENT RATIO OF FOREST COMBUSTIBLE MATERIALS AND CLASSES OF FOREST FIRES

本文通过对一个具体林区不同林分类型的可燃物含水率进行测定,同时观测林内小气候并做点烧试验。据此分析了该林区不同林分类型可燃物含水率的变化规律、地被物含水率与小气候条件及林火初始蔓延速度的关系,为寻找一种简易可行的小区域森林火险预测方法作了初步探讨。

By means of measuring the water content ratio of the forest combustible materials in dtfferent stands,observing the microclimate in the forest,and making some experiments on ignition,the authors have analyzed the variation laws of the water content ratio,and have discussed the correlations of the water content ratio,the microclimate and the spread speed of a starting forest fire in order to find out a simple and easy method to predict forest fires with- in a forest plot.