What is pienuratekniikka?
Pienuratekniikka (Finnish for "narrow-trail technique") is a thinning method in which the first thinning is carried out with compact forest machines along narrow trails spaced roughly 10 metres apart – entirely without the permanent, wide strip roads that remove productive growing area.
Because no growing stock is lost under strip roads, the stand's most valuable growth phase – between the first and second thinning – is used in full. Second-thinning yield rises, and total wood production per hectare increases over the rotation period.
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More wood per hectare – no growing area is sacrificed to strip roads, improving total rotation-period yield.
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A light footprint – narrow trails and lightweight machinery keep soil and root damage remarkably low.
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Flexible harvesting – a compact machine works where large machines cannot, offering an answer to increasingly difficult harvesting conditions.
The method is explained in The Method. Its effects on wood production are currently being examined in research – results are collected in Research & FAQ.
