森林地表可燃物含水率变化机理及影响因子研究概述  

Research Review on Change Mechanism and Impact Factors of Forest Surface Fuel Moisture

作　　者：田甜[1] 邸雪颖[1] 

机构地区：[1]东北林业大学林学院,哈尔滨150040

出　　处：《森林工程》2013年第2期21-25,142,共6页Forest Engineering

基　　金："十二五"国家科技支撑计划课题(2011BAD08B01)

摘　　要：森林可燃物是林火发生的物质基础和首要条件,而可燃物含水率作为森林可燃物的重要特性之一,是森林火险天气预报的重要因子,是影响林火能否发生的直接因素,准确测定森林可燃物含水率对开展林火预报工作具有重要现实意义。分别阐述森林中活可燃物和死可燃物含水率的变化机理及温度、相对湿度、风、降水、太阳辐射和地形地貌等因子对其影响机制,为进一步开展可燃物含水率预测以及数据库构建提供重要依据。Forest fuels are the material foundation and the first condition of forest fire occurrence. Forest fuel moisture, as one of the important characteristics of combustible material, is an important factor of forecasting forest fire danger as well as the direct factor in deciding whether forest fires could occur. Therefore, accurate determination of forest fuel moisture content has important practical significance for carrying out the work of forest fire forecasting. This paper describes the moisture change mechanism of the live combus- tible and dead fuel in the forest, and the factors impacting forest fuel moisture such as temperature, relative humidity, wind, precipi- tation, solar radiation and topography, which provides important basis for further prediction of fuel moisture as well as the building up of the database.

关 键 词：可燃物含水率 变化机理 影响因子 

分 类 号：S762.2[农业科学—森林保护学]