激光雷达在森林参数反演中的应用

激光雷达是近年来国际上发展十分迅速的主动遥感技术,在森林参数的定量测量和反演上取得了成功的应用。在林业上,高采样密度激光雷达能够获取单株木3维结构特征,采用不同的数据处理方法,可以得到不同精度的单株木参数。利用激光雷达测量森林参数不仅节省了人力,还提高了工作效率,现在已经成为快速获取树木几何参数的一种有效方法。文中主要...

The Application of LiDAR in Inversion of the Forest Parameters

LiDAR(Light Detection And Ranging) that develops rapidly in recent years internationally is a kind of active remote sensing technology,and obtains successful application in quantitative measurement and inversion of the forest parameters.In forestry,high sampling density LiDAR can obtain 3D structure feature of individual tree,using different data processing methods can receive different precision parameters of trees.Using LiDAR to measure forestry parameters not only saves manpower,but also improves efficiency,LiDAR has already become a kind of effective method to get geometrical parameters of trees quickly.This article introduces the work principle of LiDAR,types and characteristics、the factors that affect the quality of LiDAR data,the development and applications of LiDAR in domestic and international,fouses on the methods of inverting forestry parameters(tree height,canopy degrees,crown,stand density,basal area and volume etc.) with LiDAR data and research progress,and gives out prospect for inversion of forest parameters in the future.