Emissions of volatile organic compounds from heated needles and twigs of Pinus pumila
Emissions of volatile organic compounds from heated needles and twigs of Pinus pumila作者机构：Institute of Forest Ecology Environment and Protection Chinese Academy of Forestry Forest Protection Laboratory of State Forestry Administration Beijing P. R. China
出 版 物：《Journal of Forestry Research》 (林业研究（英文版）)
年 卷 期：2011年第22卷第2期
页 面：243-248页
核心收录：
基 金：supported by National Natural Science Foundation of China (30872037, 31070587) Open Project Program of State Key Laboratory of Fire Science, University of Science and Technology of China (HZ2008-KF08)
主 题：forest fire Pinus pumila volatile oil volatile organic compounds(VOC) terpenoids
摘 要：A study was conducted to explore the mechanism that emissions of volatile organic compounds（VOC） from heated needles and twigs（200°C,within 15 min） of Pinus pumila affect fire behaviours using the technology of Thermal Desorption-Gas Chromatography-Mass Spectrometry（TD-GC-MS）.The results indicated that the main components of VOC from heated needles and twigs are *** of these terpenoids are *** account for 72.93% for the needles and 92.40% for the twigs of the total VOC,and their emission ratios are 61.200 μg·g-1 and 217.060 μg·g-1 *** twigs can emit more terpenoids than heated needles because twigs had more volatile oils than *** actual fires,these large amounts of terpenoid emissions,especially the monoterpene emissions,have strong effects on fire behaviors that are not only in the initial stage but also in the fast propagation stage of *** flammable gases are capable of causing violent combustion and creating crown *** addition,if these gases accumulate in an uneven geographical area,there will be a possible for eruptive fires and/or fires flashover to occur.
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