| 思茅松林计划烧除防火隔离带设置宽度模型构建 |
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| 引用本文： | 施绍军,高仲亮,龙腾腾,李智,朱家进,张盛,宗发平,周劲峰. 思茅松林计划烧除防火隔离带设置宽度模型构建[J]. 安徽农业科学, 2012, 40(4): 2113-2114,2139 |
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| 作者姓名： | 施绍军 高仲亮 龙腾腾 李智 朱家进 张盛 宗发平 周劲峰 |
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| 作者单位： | 1. 西南林业大学土木工程学院,云南昆明650224;云南省森林灾害预警与控制重点试验室,云南昆明650224
2. 西南林业大学土木工程学院,云南昆明,650224 |
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| 基金项目： | 云南省教育厅科学研究基金，西南林业大学大学生科技创新项目，云南省重点学科“森林保护学” |
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| 摘 要： | 依据实地调查和测量,结合室内燃烧床模拟野外计划烧除试验,考虑可燃物载量(x1)、温度(x2)、可燃物含水率(x3)、风速(x4)、坡向(x5)、坡度(x6)、林带高度(x7)、蔓延速度(x8)、火线强度(x9)及计划烧除防火隔离带宽度(y)等因子构建多元线性回归模型。结果表明,预测的多元线性回归模型为y=-12.371+4.182x1+0.435x2+0.013x3+0.083x4+0.017x5+0.916x6+0.540x7,对计划烧除防火隔离带宽度的影响大小依次为x6、x7、x1、x4、x3、x2、x5,利用该模型,可以用易于获取的可燃物特征、地形因子、气象因子、林分因子来开设防火隔离带,为合理开展计划烧除和营林用火等提供依据。
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| 关 键 词： | 计划烧除 防火隔离带 模型 |
Modeling on Prescribed Burning Width of Fire Isolated Belt of Pinus kesiya Forest |
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| Affiliation: | SHI Shao-jun et al(Faculty of Wood Science & Technology,Southwest Forestry University,Kunming,Yunnan 650224) |
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| Abstract: | Based on field survey and measurement,and the simulated field burning test by indoor burning bed,a multivariate linear model was established with fuel load(x1),temperature(x2),fuel moisture content(x3),wind velocity(x4),aspect(x5),slope(x6),forest height(x7),propagation velocity(x8),fire line intensity(x9)and prescribed burning width of fire isolated belt(y).The results showed that the multivariate linear model was y=-12.371+4.182x1+0.435x2+0.013x3+0.083x4+0.017x5+0.916 x6+0.540x7,influencing factors of prescribed burning width of fire isolated belt were arranged in order of x6,x7,x1,x4,x3,x2 and x5.The model selected factors of characteristics of combustible materials,terrain,meteorology,stand which could be acquired easily to open fire isolated belt width,which provided support for prescribed burning and forest management burning,etc. |
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| Keywords: | Prescribed burning Fire isolated belt Model |
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