| 兴安落叶松人工林采伐迹地的燃烧特性1） |
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| 引用本文： | 薛伟,赵洪阳.兴安落叶松人工林采伐迹地的燃烧特性1）[J].东北林业大学学报,2016(3):8-11. |
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| 作者姓名： | 薛伟 赵洪阳 |
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| 作者单位： | 东北林业大学，哈尔滨，150040 |
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| 基金项目： | 中央高校基本科研业务费专项资金资助 |
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| 摘 要： | 经实地勘查后布置燃烧床，以风速、表层可燃物含水率、现场温度、坡度为因素，温度变化、燃烧蔓延速度、火线强度为特性指标设计L9（34）正交试验。结果表明：风速对火蔓延速度及火线强度具有明显影响，随着风速的增大，火蔓延速度与火线强度明显增加；表层含水率对最高温度、火蔓延速度及火线强度的影响较明显，随着表层含水率增加，最高温度、火蔓延速度及火线强度均降低；现场温度对最高温度有明显影响，随现场温度升高，最高温度增加；坡度对最高温度、火蔓延速度及火线强度均有影响，随坡度的增加，最高温度增加，火蔓延速度加快，火线强度加强；风速及表层含水率是影响剩余物燃烧的主要因素，当风速为5 m· s－1、表层含水率为10％时，影响剩余物燃烧的权重最大。
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| 关 键 词： | 兴安落叶松 人工林 采伐迹地 燃烧特性 |
Comb ustion Characteristics of Residues in Larix gmelinii Plantation Slash |
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| Abstract: | After arranging burning bed after field survey on site , with wind speed , surface fuel moisture , temperature and slope as factors, we designed L9(34) orthogonal test in the performance indexes of temperature , fire spread speed, and fire in-tensity.Wind speed had a significant effect on fire spread speed and fire intensity , and the two indicators obviously were increased with the increase of wind speed .The maximum temperature , fire spread speed , and fire intensity had a close re-lationship with surface fuel moisture , and the three indicators were reduced with the increase of surface fuel moisture .The site temperature had obviously impact on maximum temperature merely , with the increase of scene temperature and the maximum temperature .The maximum temperature , the fire spread speed , and the fire intensity were related to the slop , and with the increasing of slope increasing , the maximum temperature and the fire spread speed , the fire intensity was strengthened .The wind speed and surface fuel moisture were the main factors that affect the combustion of residues , the weight reached maximum , and when the wind speed was 5 m· s-1 , the surface moisture content was 10%. |
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| Keywords: | Larix gmelinii Plantation Slash Combustion characteristic |
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