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Forest Ecosystems

Table 4 The occlusion effect caused by non-stem components

From: Quantification of occlusions influencing the tree stem curve retrieving from single-scan terrestrial laser scanning data

Plot ID Totally blocked stems Seriously incomplete stems
Number Percentagea Number
1 2 2/3 4
4 2 1/3 1
5 19 3/4 7
6 5 1/3 13
10 4 1/3 10
12 9 4/9 12
16 0 0 0
18 0 0 1
19 1 1/3 0
20 29 3/4 8
22 0 0 2
Mean – 1/3 –
  1. Note: a The percentage of the undetected stems caused by non-stem components in all undetected stems. The seriously incomplete stems are the stems where the completeness of the retrieved stem curves is less than 5%
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