| 南宁老虎岭马尾松林间伐前后的火行为 |
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| 引用本文： | 黄小荣,侯远瑞,庞世龙,申文辉. 南宁老虎岭马尾松林间伐前后的火行为[J]. 东北林业大学学报, 2015, 0(7): 92-96. DOI: 10.3969/j.issn.1000-5382.2015.07.021 |
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| 作者姓名： | 黄小荣 侯远瑞 庞世龙 申文辉 |
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| 作者单位： | 广西林业科学研究院，南宁，530002 |
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| 基金项目： | 国家林业公益性行业科研专项(201204512)，广西科技攻关项目(桂科攻14124004－3－11)资助。 |
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| 摘 要： | 以南宁老虎岭马尾松生态公益林为例,应用Behave Plus 5.0分析了间伐前后3块不同样地的火行为。结果表明:间伐处理使地表火面强度降低28%~50%,地表火反应强度降低22%~45%,树冠火火线强度降低48%~59%,大幅降低了地表火向树冠火的转化率;在间伐后干旱夏季的12种情景中,仍然有10种情景的火线强度超过手工工具扑灭范围,1种情景下火线强度超出人类使用所有机械能够控制的极限。
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| 关 键 词： | BehavePlus 间伐 林冠容重 冠基高 风速修正因子 |
Fire Behaviro of Pinus masson iana Forest Pre-thinning and Post-thinning in Tiger Mountain,Nanning |
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| Abstract: | With 31-year Pinus msa soniana non-commercial forest in Tiger Mountain, Nanning, we studied their fire behavior of three sampled plots by BehavePlus 5.0.The thinning significantly reduced the transition rate to crown fire.The disposal of shrub, dead branches contributed to a reduction by 28%-50%in heat per unit area, a decrease by 22%-45%in reaction intensity, and a fall of 48%-59% in crown fireline intensity.Among 12 post-treatment summer drought scenarios, 10 still had fireline intensities exceeding the control by hand tools, and 1had intensity overrunning all mechanical controls . |
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| Keywords: | Behave plus Thinning Canopy bulk density Canopy base height Wind adjustment factor |
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