陕西林业科技2023，Vol.51Issue(5)：22-27,6.DOI:10.3969/j.issn.1001-2117.2023.05.005
基于无人机影像估算林分树高的研究
Estimation of Tree Height in Forest Stands based on UAV Imagery
摘要
Abstract
In order to quickly obtain the tree height factor for forest inventory,the Tanli management area of Nanning Arboretum was used as the research object.Based on the UAV image data,combined with the field survey,the DOM,DEM and DSM of the study area were obtained by processing with PostFlight Terra 3D software,and the tree height was estimated by using ArcGIS spatial analysis technology.The measured sample tree height was compared with the estimated tree height for accura-cy.The results showed that the tree height of the sample trees was estimated by using UAV remote images,with overall average accuracy reaching 90.9％.A close correlation between the extracted tree height and the measured tree height existed,and the average accuracy of the model tree height is 93.2％,with the accuracy of average height of stand reaches 97.2％.The tree height parameters is auto-matically extracted,meeting the relevant practical requirements and can replace manual measurement to a certain extent.关键词
无人机影像/空间分析/树高Key words
UAV image/spatial analysis/tree height分类
农业科技引用本文复制引用
覃永华,覃静婷,谢福倩,刘世男..基于无人机影像估算林分树高的研究[J].陕西林业科技,2023,51(5):22-27,6.基金项目
广西林业科技推广示范项目(gl2020kt01). （gl2020kt01）
