摘要
通过对杉檫混交林标准地的调查,应用回归分析,建立林分地表可燃物载量与主要林分因子动态关系的数学模型。检验结果表明,林分因子对地表可燃物载量变化影响显著,1h时滞可燃物载量变化与林分平均年龄和郁闭度关系最密切;10h时滞可燃物载量变化与林分平均树高关系最密切。在实际中拟合效果良好,可用于描述杉檫混交林地表可燃物载量的动态规律,为分析杉檫混交林燃烧性及评价混交林与杉木纯林在抗火性能上的差异提供依据。
Based on the data collected from sample plots of the mixed forest of Fir and Sassafras, and on the multi-factors analysis, the dynamic mathematical models between the surface fuel loading and the main factors of forest were established. The results showed that the effects of all stand factors on the surface fuel loading were remarkable, but the stand average age and the close canopy mainly affected the 1 h time tag surface fuel loading, the stand average high mainly affected 10 h time tag surface fuel loading. The models could be used to forecast the dynamic law of the surface fuel loading of the mixed forest of Fir and Sassafras and thus provide scientific basis for the evaluation of the difference in fire-resistance between the mixed forest of Fir and Sassafras and simple forest of Fir.
出处
《江西农业大学学报》
CAS
CSCD
2004年第2期178-180,共3页
Acta Agriculturae Universitatis Jiangxiensis
基金
福建省教育厅科学基金资助项目(JA01053)
