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以南宁老虎岭松栎公益林为例,介绍了可燃物特征分类系统(FCCS)的使用方法。研究了FCCS所需数据的采集方法、输入方法和计算结果的解读,探讨了环境变量的输入对地表火行为预测值的影响。结果表明:老虎岭松栎公益林在调查期间(2013年4—5月)的反应强度和蔓延速度均很低。如果环境变得干旱,达到FCCS的D2L2水分含量阈值时,3号样地类型的公益林(28年生马尾松疏林)有高的火潜势、反应强度和蔓延速度。FCCS可以输入样地调查数据,提供的预测结果符合实际,可以用来指导森林火管理决策,识别高风险林分优先进行可燃物处理。
Taking the commonweal forest of Pinus tabulaeformis in Nanling as an example, the method of using FCCS was introduced. The data acquisition methods, input methods and calculation results of FCCS are studied. The effects of environmental variables on the predictions of surface fire behavior are discussed. The results showed that both the response intensity and the spreading rate of the commonweal forests of Pinus taiwanensis were very low during the survey (April-May 2013). When the environment became arid, the FCCL D2L2 moisture content threshold was reached, and the public welfare forest (28-year-old masson pine forest) of No.3 plots had high fire potential, reaction intensity and spreading rate. FCCS can input sample survey data to provide realistic forecasts that can be used to guide forest fire management decisions and to identify high-risk stands for priority combustibles disposal.