| Autor: |
Bo-Xuan, Chen, Yan, Guo, Jia-le, Fan, Bao-Zhong, Li, Chuan-Qiao, Tan, Dong-Hui, Li, Hai-Qing, Hu, Tong-Xin, Hu |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Ying yong sheng tai xue bao = The journal of applied ecology. 33(1) |
| ISSN: |
1001-9332 |
| Popis: |
Forest fuels are the basis of fire occurrences, while ground dead fuels are an important part of forest fuels. Undestanding the pyrolysis characteristics and gas emissions of forest fuels is of great significance to explore the effects of forest fire on atmospheric environment and carbon balance, as well as to prevent and combat forest fire. In this study, the thermogravimetric analysis and gas emission analysis were conducted on leaf litter of six tree species (森林可燃物是森林火灾发生的基础,地表死可燃物是森林可燃物的重要组成部分,研究地表死可燃物的热解特性和气体释放对探究森林火灾对大气环境和碳平衡的影响及森林火灾的预防和扑救具有重要意义。本研究对黑龙江省6种乔木(樟子松、红皮云杉、水曲柳、胡桃楸、蒙古栎和白桦)地表凋落的叶片进行热重分析和气体释放分析,探究森林可燃物的热解过程及燃烧性,分析了热解特征、热解动力学特征和气体释放特征,并基于热解参数对其燃烧性进行四维评价。结果表明: 研究区6种乔木叶片综纤维素热解开始的温度范围为143.31～180.48 ℃,结束的温度范围为345.04～394.38 ℃;木质素热解开始的温度范围为 345.04～394.38 ℃,结束的温度范围为582.85～609.31 ℃。6种乔木叶片热解过程中综纤维素的热解影响了可燃物灰分含量及总热解的重量、温度。6种乔木叶片2个主要热解阶段的活化能分别为18.88～27.08和13.25～27.54 kJ·mol |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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