基于林火强度分析的森林防火监测点选址

Location selection methods of forest fire monitoring points based on forest fire intensity analysis

监测点作为森林防火监测体系不可或缺的一部分,如何合理布局,实现资源分布最优是关键。本文以宁波市溪口镇为研究区,基于数字高程模型,结合坡度、坡向和海拔3个地形因子的林火强度空间分布特征以及GIS可视性分析,研究溪口镇森林防火监测点的选址和布局。研究结果表明,对选取的6个监测点进行合理的布局与规划,可监测到溪口镇62.03%的区域;通过林火强度和可视分析,实现了对6个监测点布设的优先级设定,以期为森林防火监测体系建设提供参考和依据。

Monitoring points are an indispensable part of the forest fire monitoring system.Rational distribution is the key to realize the optimal distribution of resources.Taking Xikou Town,Ningbo City as the research area,based on digital elevation model,combined with the spatial distribution characteristics of forest fire intensity of three terrain factors of slope,aspect and altitude and the visibility analysis of geographic information system,the location and distribution of forest fire monitoring points in Xikou Town were studied.The research results show that 62.03%of Xikou Town can be monitored by a reasonable distribution of the six fire monitoring points.Through forest fire intensity and visibility analysis,the priority setting for the placement of alternative points is realized.It is expected to provide a reference and basis for constructional of forest fire prevention monitoring system.