基于GIS的普达措国家森林公园火险区划分析

Analysis of Pudacuo National Forest Park fire zoning based on GIS

文章以云南省普达措国家森林公园为研究对象,以TM遥感影像图像、普达措地区DEM和森林火灾情况调查数据为信息源,在分析普达措森林公园森林火险因子基础上,选取自然因素和人为因素这两大类作为主要林火等级区划分析因素考虑。借助遥感影像图像处理软件ENVI以及利用GIS相关理论方法,通过采用因子加权叠置法,对研究区森林火险情况进行了定量评价,并将火险等级分为5类风险等级。结果表明:普达措森林公园森林火险等级较高、高火险区比重较大,森林防火任务较重。高火险区主要位于易燃树种生长区和地形影响较大区,研究结果可为森林防火部门提供相关技术支持。

In this paper, Pudacuo National Forest Park in Yunnan Province was taken as a research area and TM remote sensing image, DEM of this area and forest fire survey data selected as the sources. On the basis of analyzing the forest fire risk factor of Pudaeuo National Forest Park,the forest fire risk was quantified by the factors of forest fire zoning including natural factors and human factors.By means of remote sensing image processing software ENVI and the use of GIS theory, the circumstances of forest fire risk were quantified by the weights union method, the investigating area were divided into 5 types of risk leveL.The results showed that：High fire risk areas were mainly located in flammable species growth area and terrain influence area.the results will provide technical support to the releated departments of forest fire control.