黑河地区红松人工林根朽病对其主干燃烧性的影响  

Effects of Root Rottenness of Pinus koraiensis Plantation in Heihe Area on the Combustibility of Its Trunk

作　　者：郭琦钰 宁吉彬 瓮岳太 李杰[3] 何诚[4] 邸雪颖[1] 杨光[1] Guo Qiyu;Ning Jibin;Weng Yuetai;Li Jie;He Cheng;Di Xueying;Yang Guang(Northeast Forestry University,Harbin 150040,P.R.China;Forestry Bureau of Sunwu County,Heilongjiang Province;Nanjing Forest Police College)

机构地区：[1]东北林业大学林学院,哈尔滨150040 [2]东北林业大学,哈尔滨150040 [3]黑龙江省孙吴县林业局 [4]南京森林警察学院森林消防学院

出　　处：《东北林业大学学报》2020年第12期41-45,共5页Journal of Northeast Forestry University

基　　金：中央高校基本科研业务费专项资金项目(2572019BA05)。

摘　　要：为了解森林病害对森林燃烧性的影响,选择研究红松根朽病与其发病部位燃烧性的关系,致力于从森林病害角度来判断病害对森林燃烧性的影响。对黑河市孙吴县患红松根朽病的红松人工林的主干发病部位的燃烧性进行测定和试验分析。利用锥形量热仪法对比患重度红松根朽病、患轻微根朽病与健康红松的树根部(a)、树基部(b)及树干部(c)的各燃烧性指标差异,通过比较引燃时间、热释放速率、热释放总量、质量损失等指标,从而得出红松根朽病对其发病部位燃烧性的影响。在患病部位相同的条件下,患重度根朽病的红松的燃烧性强于未患病及轻微患病的红松,轻微患病与未患病红松的燃烧性差异不显著。从患病部位上看,树根部的燃烧性强于树基部与树干部,且与根朽病发病部位的严重程度相吻合。红松根朽病对其发病部位的燃烧性有促进作用,且随着患病程度的增强,燃烧性也会随之增强。In order to understand the effects of forest diseases on forest combustibility,we studied the relationship between red pine root rot disease and the combustibility of its location,and tries to judge the effects of forest diseases on forest combustibility from the perspective of forest diseases.The burnability of Pinus koraiensis Plantation in Sunwu County of Heihe City after root rot disease was measured and analyzed experimentally.The cone calorimeter method was used to compare the differences of burnability indices of root,base and cadres of severely and mildly infected P.koraiensis with those of healthy P.koraiensis.The effects of root rot on burnability of P.koraiensis were obtained by comparing ignition time,heat release rate,total heat release and mass loss.Under the same condition,the burnability of the severely rotten P.koraiensis was stronger than that of the uninfected and slightly diseased P.koraiensis,and there was no significant difference between the slightly diseased and uninfected P.koraiensis.From the diseased parts,the burnability of tree roots is stronger than that of tree base and tree cadres,which coincides with the severity of the diseased parts of root rot.The root rot of P.koraiensis had a positive effect on the burning property of the disease site,and with the increase of the disease degree,the burning property would also be enhanced.

关 键 词：红松 根朽病 锥形量热仪 燃烧性 

分 类 号：S762.2[农业科学—森林保护学]