The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Download
Publications Copernicus
Download
Citation
Articles | Volume XLII-3/W3
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-3/W3, 157–160, 2017
https://doi.org/10.5194/isprs-archives-XLII-3-W3-157-2017
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-3/W3, 157–160, 2017
https://doi.org/10.5194/isprs-archives-XLII-3-W3-157-2017

  19 Oct 2017

19 Oct 2017

TREE STEM AND CANOPY BIOMASS ESTIMATES FROM TERRESTRIAL LASER SCANNING DATA

K. Olofsson and J. Holmgren K. Olofsson and J. Holmgren
  • Swedish University of Agricultural Sciences, 901 83 Umeå, Sweden

Keywords: Terrestrial laser scanning, biomass, stem, canopy

Abstract. In this study an automatic method for estimating both the tree stem and the tree canopy biomass is presented. The point cloud tree extraction techniques operate on TLS data and models the biomass using the estimated stem and canopy volume as independent variables. The regression model fit error is of the order of less than 5 kg, which gives a relative model error of about 5 % for the stem estimate and 10–15 % for the spruce and pine canopy biomass estimates. The canopy biomass estimate was improved by separating the models by tree species which indicates that the method is allometry dependent and that the regression models need to be recomputed for different areas with different climate and different vegetation.