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Table 3 Two-sided Wilcoxon signed rank test results of the point density effect on LiDAR metrics for the Serra do Mar study site

From: Impact of data model and point density on aboveground forest biomass estimation from airborne LiDAR

Serra do Mar, Brazil
Plot size (ha) Point density (points m−2) AUCW CV FC Max-H MeanH P25H P50H P75H P90H StdH
E-B CHM E-B CHM E-B CHM E-B CHM E-B CHM E-B CHM E-B CHM E-B CHM E-B CHM E-B CHM
0.09 Orig-10p
Orig-5p
Orig-1p
0.25 Orig-10p
Orig-5p
Orig-1p
0.50 Orig-10p
Orig-5p
Orig-1p
1.00 Orig-10p
Orig-5p
Orig-1p
  1. – indicates no significant differences, indicates significant differences (significance level: 5%), E-B echo-based data model, CHM canopy height model, AUCW area under canopy waveform, CV coefficient of variation, FC fractional cover, Max-H maximum canopy height, Mean-H mean canopy height, P25H 25th height percentile, P50H 50th height percentile (median height), P75H 75th height percentile, P90H 90th height percentile, StdH standard deviation of the height, Orig point density of the original dataset, 10p point density reduced to 10 p m−2, 5p point density reduced to 5 p m−2, 1p point density reduced to 1 p m−2