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Table 3 Maximum branch diameter permitted in each class of final stem quality (QF)

From: Improving stem quality assessment based on national forest inventory data: an approach applied to Spanish forests

Species

Final stem quality (QF)

QF1

QF2

QF3

QF4

Pines

Not allowed

 ≤ 4 cm

 ≤ 7 cm

Allowed

Broadleaved species

 ≤ 2 cm

 ≤ 6 cm

Allowed

Allowed

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Annals of Forest Science

ISSN: 1297-966X