【摘要】 森林可燃物湿度对林火蔓延和有效辐射率均有重大影响。它又是预测林火发生、林火行为、火险等级的主要根据。本文在回顾森林可燃物湿度研究的同时，综述了可燃物湿度研究的两个重要的概念—平衡含水量和时滞，简述了相对湿度理论，概括了主要研究方法的优缺点。文中还列出了现代可燃物研究的主要成果，指出了可燃物湿度研究的发展方向更多还原

【Abstract】 Abstract The moisture of forest flammable matter affects considerably on the spread speed and rate of effective radiation of forest fire.It is also essential basis to predict the occurrence,behavior and risk level of forest fire.This review paper discussed on two fundamental concepts,balanced water content and time,and the theory of relative moisture.To study the moisture of forest flammable matter,it is important to examine major environmental facts that affect variations of the moisture of forest flammable matter and to establish function models,through experiments in laboratory or in the field.The advantages and disadvantages are also analyzed for different research methods,main achievements and development trends are as well as outlined in this reserch area.更多还原