Norway spruce cone crops in uneven-aged stands in southern Finland: A case study

Markku Nygren,Kaisa Rissanen,Kalle Eerikäinen,Timo Saksa,Sauli Valkonen

Forest Ecology and Management（2017）

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摘要

•At each harvest entry, some large, prolific trees should be retained as seed trees.•Seed trees should be chosen as based on their cone-crop production history.•Cone production in individual trees correlates negatively with stand density.•Digital photographs are useful in cone crop inventory.

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关键词

Picea abies (L.),Seeds,Flowering,Regeneration,Uneven-aged management,Image analysis

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