摘要
从近地面机载激光雷达工作原理出发,分析该技术在林业调查中获取地形地貌、地表植被覆盖信息方面存在的优势,结合自主研发的点云数据处理软件所涉及的方法,描述了从机载激光雷达数据获取单木信息、林木树高、冠幅、株数和郁闭度的技术理论,最后根据机载激光雷达在林业上的应用情况,与传统的林业调查监测技术进行比较,得到当前机载激光雷达在调查树高、郁闭度、株数等方面有自身优势,可以替代部分传统工作,但在预测树高胸径模型、蓄积量调查、点云数据处理算法等方面仍然有待技术和理论进一步完善和改进的结论。
Starting from the working principle of the near ground airborne LiDAR,this paper analyzes the technical advantages of this technology in obtaining the information of terrain and landform and surface vegetation coverage in forestry investigation,and takes the self-developed point cloud data post-processing software as an example to describe in detail the technical methods of obtaining single tree information,tree height,crown width,tree number and canopy density from the airborne lidar data.Finally,according to the application of the airborne lidar in forestry,through comparison and analysis with traditional forestry survey and monitoring technologies,it is concluded that the current airborne lidar has its own advantages in tree height,canopy density,number of trees,etc.,and can replace traditional work,but it still needs technical and theoretical improvement in stock volume survey,point cloud data processing algorithm.
作者
罗春林
付晓燕
Luo Chunlin;Fu Xiaoyan(State Forestry Administration Kunming Survey&Design Institute,Kunming 650031,China;Southwest Forestry University,Kunming 650224,Chnia)
出处
《林业科技情报》
2024年第1期44-47,共4页
Forestry Science and Technology Information
关键词
机载激光雷达
森林资源调查
点云数据处理
Airborne LiDAR
forest resource survey
point cloud data processing
