西双版纳勐养保护区森林火险空间分布的研究

The Research on Spatial Distribution of Forest Fire Danger in Mengyang Reserve, Xishuangbanna, Yunan

根据林火的燃烧反应式： Ｃ６ Ｈ１０ Ｏ５ ＋ ６ Ｏ２ 燃点温度 ６ Ｃ Ｏ２ ＋ ５ Ｈ２ Ｏ＋ 热量↑，由反应式得出，林火的要素包括：森林可燃物、氧气和温度。森林可燃物随森林植被类型而异，而氧气普遍存在，燃烧温度可分解为火源和立地干燥度。根据研究地区的实际情况，其火险要素具体包括：森林植被类型、人为火源分布和立地坡向。本项研究，利用遥感和地形图采集火险数据， Ｇ Ｉ Ｓ进行火险集成。最后得出森林火险空间分布，并划分为不燃、难燃、可燃、易燃和强燃 ５ 个等级。研究结果与过去的林火统计材料相比较，基本吻合，但方法更科学合理。该项研究，对防火工作提供决策支持。

Based on the formula of forest fire (C 6H 10 O 5+6O 2→6CO 2+5H 2O+Heat), some major elements of forest fire were resulted in the formula They included forest fuel, Oxygen and temperature Forest fuel was different from forest vegetation type and oxygen existed at all places The temperature of fire was divided by fire origin and drying degree of site The factors of forest fire danger that according to the actual conditions of study region were included forest vegetation In the study, the data of forest fire danger was collected by using remote sensing and map, and spatial distribution of forest fire danger was analyzed and divided by using GIS The result of the research was more reasonable than formerly way of forest fire data Spatial distribution of forest fire danger will be helpful in preventing fire