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火烧迹地朽木的热重分析
引用本文:苏文静,张思玉,李世友,王秋华,韩永涛.火烧迹地朽木的热重分析[J].安徽农业大学学报,2017,44(5):796-800.
作者姓名:苏文静  张思玉  李世友  王秋华  韩永涛
作者单位:西南林业大学消防学院,昆明650224;云南省森林灾害预警与控制重点实验室,昆明650224;南京森林警察学院,南京,210023;西南林业大学消防学院,昆明,650224
基金项目:国家自然科学基金项目(31260180)资助。
摘    要:森林火烧往往造成大量林木死亡。火烧迹地上不同死亡木腐朽程度差别较大。为比较分析朽木和正常生长木的热解差异,对昆明市安宁2006年"3·29"森林火灾火烧迹地上12种主要受害树种的朽木及其正常生长木进行了热重实验,分析和计算了24种样品的活化能、着火温度、燃烬温度和综合燃烧特性指数。研究表明,朽木热稳定性优于同种正常生长木,燃烧性较同种正常生长木差。

关 键 词:火烧迹地  朽木  热重分析  燃烧特性

Thermogravimetric analysis of rotten wood in a burned forest area SU Wenjing
ZHANG Siyu,LI Shiyou,WANG Qiuhua and HAN Yongtao.Thermogravimetric analysis of rotten wood in a burned forest area SU Wenjing[J].Journal of Anhui Agricultural University,2017,44(5):796-800.
Authors:ZHANG Siyu  LI Shiyou  WANG Qiuhua and HAN Yongtao
Institution:School of Fire Science and Technology, Southwest Forestry University, Kunming 650224; Yunnan Key Laboratory of Forest Disaster Warning and Control, Kunming 650224,Nanjing Forest Police College, Nanjing 210023,School of Fire Science and Technology, Southwest Forestry University, Kunming 650224; Yunnan Key Laboratory of Forest Disaster Warning and Control, Kunming 650224,School of Fire Science and Technology, Southwest Forestry University, Kunming 650224; Yunnan Key Laboratory of Forest Disaster Warning and Control, Kunming 650224 and School of Fire Science and Technology, Southwest Forestry University, Kunming 650224
Abstract:Forest fire often causes death of a large quantity of trees.There was a great difference in decay degree among dead woods in the burned area.In order to analyze the differences in pyrolysis between rotten wood and normally growing wood,a thermogravimetric experiment was conducted using victimized rotten wood and the wood of normally growing tree of 12 main tree species in "3·29" forest fire burned area in 2006 in Anning,Kunming.The activation energy,ignition temperature,bumout temperature and comprehensive indexes of 24 samples were analyzed and calculated.The research showed that the thermal stability of rotten wood was greater than that of the wood of the normally growing tree.The burning rate of normal tree wood was higher than that of the rotten one.
Keywords:burned area  rotten wood  thermogravimetric analysis  combustion characteristics
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