Estimating plant area density of individual trees from discrete airborne laser scanning data using intensity information and path length distribution

• Published in: International journal of applied earth observation and geoinformation Vol. 118; p. 103281
• Main Authors: Gao, Ge, Qi, Jianbo, Lin, Simei, Hu, Ronghai, Huang, Huaguo
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.04.2023; Elsevier
• Subjects: algorithms; Betula; data collection; evapotranspiration; forest canopy; forests; geometry; leaf area index; leaves; lidar; photosynthesis; reflectance; simulation models; spatial data; transmittance; tree growth; trees

•An individual tree plant area density estimation method is proposed.•It uses crown shape derived from point cloud to correct crown-level clumping.•Intensity is utilized to reduce requirement for prior information of reflectance.•It retrieves high-resolution information from relatively low-density p...