江西省主要森林可燃物失水率变化规律研究  

Study on the Moisture Loss Rate Change Rule of Main Forest Combustible in Jiangxi Province

作　　者：祝必琴[1] 肖金香[2] 黄淑娥[1] 

机构地区：[1]江西省气象科学研究所,江西南昌330046 [2]江西农业大学园林与艺术学院,江西南昌330045

出　　处：《江西林业科技》2014年第4期4-7,19,共5页Jiangxi Forestry Science and Technology

基　　金：国家自然科学基金项目"亚热带季风区森林火灾气象风险机理研究"(40865004);江西省气象局面上项目"生态质量气象评价指标本地化研究与应用"

摘　　要：可燃物失水率快慢是反映燃烧快慢的内在指标之一。本项目采集17种江西省主要针叶、常绿阔叶及灌木树种的枝、叶进行失水率测定分析,得出不同树种不同组分失水率以树叶大于树枝,且日间变化幅度也较树枝更大;并利用多元统计方法,建立不同可燃物类型失水率模型,日失水率与当日14时相对湿度呈显著负相关。研究结果可为森林火险预报提供可靠信息,对提高林火管理水平,保护森林资源等均具有重要的意义。Forest combustible moisture loss rate is one of the inherent indicators that reflect the speed of burning. The project collected the branches and leaves of 17 kinds mainly conifer, evergreen broadleaf and shrub species in Jiangxi Province to measure and analyze the moisture loss rate, it concluded that different species and organs has different moisture loss rate and magnitude change：leaves＆gt;branches. This paper used multivariate statistical methods to establish the model of different forest type＆#39;s moisture loss rate. There is negative correlation between moisture loss rate and air relative humidity at two o＆#39;clock p. m.. The study results can provide reliable information for the forest fire danger forecast, and also will have great significance for improving forest fire management and protecting forest resources.

关 键 词：失水率 变化规律 主要森林可燃物 江西省 

分 类 号：S762[农业科学—森林保护学] P426.16[农业科学—林学]