Individual tree crown segmentation from the airborne LiDAR data (c, e, and g) of the three experimental plots and 3D forest plot scenario reconstructions (d, f, and h) using basic geometric models with the calculated sizes according to the stand growth attributes retrieved from LiDAR data. (a and b) Cone and semiellipsoid models with variable parameters to simulate each conifer and broadleaf tree crown, respectively. (c and d) Pure Metasequoia conifer plot. (e and f) Broadleaf tree plot comprising multiple tree species. (g and h) Mixed species plot.