森林火灾现场图形面积量算方法的比较研究  

The comparison among the calculation methods of forest fire spot figure area measuring research

作　　者：张民侠[1] 张洁[1] 赵浩彥 陈戈萍[1] 

机构地区：[1]南京森林警察学院,江苏南京210023

出　　处：《中南林业科技大学学报》2016年第12期18-25,共8页Journal of Central South University of Forestry & Technology

基　　金：中央高校基本科研业务费专项(LGYB201511);江苏省林业三新工程项目(LYSX[2016]52)

摘　　要：森林火灾面积是森林火灾案件定罪量刑的依据,是确定森林火灾类型的重要条件,是森林火灾损失调查的重要因子。当绘制好森林火灾现场图形后,可采用几何法、网点法、方格法或求积仪法等量算面积,不同方法量算的结果不同,目前对不同方法量算结果的差异性研究较少。通过对不同方法量算精度的理论分析及实证研究发现,方格法量算的结果精度较高,但要选择合适的方格边长,效率较低;求积仪法使用效率高,操作方法得当,精度也可满足林业测量要求,但基层森林公安机关使用较少;几何法因有现成的公式,使用方便,但与图形的分割方式、量测方法、图形边长大小等有关。实践中要根据具体情况选用合适的量算方法,提高面积计算的精度。Forest fire area is the gist of conviction and measurement of penality of forest fire crimes, the important condition of determining the types of forest fire, and the significant factor of investigating the loss of the of forest fire. After drawing the forest fire field graph, the geometric method, dot method, grid method, and the planimeter method etc. can be used to calculate the proportion. The results are different after using different methods. Currently, there is a small amount of studies of differences among the results. Through theroatieal analysis and empirical study of different measurements, the grid method has a relative high accuracy. However, the applicable gird length is needed so the efficiency is low; using planimeter method is quite efficient, operationally appropriate and the accuracy is apply to the requirements of forest measurements. But the fundemental forest public security organizations utilize few of planimeter method. Geometric method has existing formulas and is easy to use but it dependes on the ways of segmentation, methods of measurements, and the size of graph length. In the practice, choosing suitable measurement ways to improve the accuracy of calaculaing area according to specific situation is required.

关 键 词：森林火灾 现场图形 面积量算 定性处罚 

分 类 号：S771[农业科学—森林工程]