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林业资源管理 ›› 2009›› Issue (1): 84-88.doi: 10.13466/j.cnki.lyzygl.2009.01.015

• 科学技术 • 上一篇    下一篇

华山松人工林凋落物层细小可燃物含水率预测模型研究

李世友1,2, 舒清态1, 马爱丽1, 张桥蓉1, 刘燕1, 王祥琴1   

  1. 1.西南林学院, 昆明 650224;
    2.云南省高校森林灾害预警与控制重点实验室, 昆明 650224
  • 收稿日期:2008-09-22 修回日期:2008-09-29 出版日期:2009-02-28 发布日期:2021-01-27
  • 作者简介:李世友(1971-), 男, 湖北麻城人, 副教授, 硕士, 从事森林防火教学和科研工作。
  • 基金资助:
    昆明市科技局重点项目(06H114135);云南省青年基金项目(2003C0021Q)

Modeling on Moisture Content Predicting of Surface Fuel of Litter-fall Layer in Pinus armandii Plantations

LI Shiyou1,2, SHU Qingtai1, MA Aili1, ZHANG Qiaorong1, LIU Yan, WANG XiangQin1   

  1. 1. Faculty of Conservation Biology, Southwest Forestry College, Kunming 650224, China;
    2. Key Laboratory of Forest Disaster Warning and Control in Yunnan Higher Education Institutions, Kunming 650224, China
  • Received:2008-09-22 Revised:2008-09-29 Online:2009-02-28 Published:2021-01-27

摘要: 在防火期2~5级火险天气条件下, 在华山松人工林测定了153组林内气温(x1)、相对湿度(x2)、凋落物表面温度(x3)、腐殖质层表面温度(x4)、凋落物层厚度(x5)、可燃物含水率(y)数据, 建立了华山松林细小可燃物含水率预测的多元线性回归模型。分析表明, 影响华山松林凋落物上层易燃可燃物含水率的因子依次为:x3> x2>x4>x1。应用该模型, 可以用易于获取的火环境和可燃物因子来预测可燃物的含水率, 为合理开展林火预测预报、计划火烧、营林用火等提供依据。

关键词: 华山松人工林, 凋落物, 细小可燃物, 含水率, 模型

Abstract: The study tested 153 groups of ai r temperature(x1), relative humidity (x2), surface temperature of lit ter layer(x3), surface temperature of humic substances layer (x4), thickness of li tter-fall layer(x5) and moisture content of surface fine fuel of lit tler-fall layer(y) in Pinus armandii plantations between 2-5 forest fire danger rating classes in forest fire season in 2008, and the multivariate linear model on moisture content predicting of surface f ine fuel of lit ter was established.The results showed that the main factors inf luencing the moisture content of surface fine fuel were arranged in order of x3>x2>x4>x1.The model selected factors of forest fire environment and fuel characteristics which could be acquired easily to predict moisture content of fuel, and might provide accordance for forest fire danger forecasting, prescribed burning, forest management burning etc.

Key words: Pinus armandii plantations, litter, fine fuel, moisture content, model

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