【摘要】 应用油松、响叶杨不同枝径、不同枝长的试样，通过在较高恒温条件下进行不同时间的干燥试验认为，水分逸出率可以作为评价树种燃烧性的一个水分指标。结果表明，该指标与测定时间的关系可用Ｌｏｇｉｓｔｉｃ模型表示，并与枝径呈指数函数关系，与枝条呈ｂ＜０的双曲线函数关系。研究确定了该指标的标准化测定方法，即测定恒定温度１４０℃；枝径１ｃｍ；测定时间０．５ｈ，枝长２０ｃｍ，若测定时间为１ｈ，枝长为１５ｃｍ。更多还原

【Abstract】 Water escape ratio could be used as an evaluation index of tree combustibility.Studies on Pinus tabulaeformis and Populus adenopode twigs of various diameters and lengths under different heated times showed that the relationships between the index and test time,diameter of twigs,and length of twigs were described by model logistic,exponential function and hyperbola function (b<0)respectively .Standard test method is suggested,that is;the determination temperature is 140℃,the diameter of twigs 1cm,the test time 0.5h,the length of twigs 20cm or test time 1h,the length of twigs 15cm.更多还原