Estimating Carbon Stocks and Biomass Expansion Factors of Urban Greening Trees Using Terrestrial Laser Scanning

Urban forest carbon sequestration represents an important component of the global pool; however, accurate measurements are limited by inability existing field stand models to match specificity urban greening species. Herein, canopy volume, stock, and biomass expansion factor (BEF) 30 Koelreuteria paniculate trees were measured based on terrestrial laser scanning (TLS) compared results wood volume stock model measurements. The findings revealed that (1) TLS point cloud data highly reproducible (root mean square error tree height diameter at breast ±0.35 m ±0.33 cm, respectively). (2) Owing human interference cluttered environments, BEF species fluctuated irregularly, considerably different from natural stands. (3) Leaf stocks influenced size voxel. (4) Different measurement factors maintained variable degrees influence (height under branch, thick crown width, projected areas tree-crown produced correlation coefficients −0.64, 0.54, 0.45, 0.43, Accordingly, can be accurately calculated via without damage.