Reaction Wood of Picea Abies.jpg
Torbjörn Axelson
en
Reaction Wood of Picea Abies, Reaction-wood in a crosscut of a Spruce stump (Picea Abies), taken 20 cm above ground, This tree was growing on soft ground in a bog, near Björbo, Sweden (60&deg;27'N 14&deg;40'E), and obviously leaning towards southwest (i.e down/left according to the image) during most of its lifetime. The image resolution is 200 dpi.
commons
en
Reaction Wood of Picea Abies, Cross sections of trees, Picea abies wood, Tree rings, Unknown date
commons
ja
ピケアの反動木 、スプルースの切り株の反動木。 高さ20cmで、この木はスウェーデンのビョルボ近くの沼で柔らかい地面で成長していた。画像解像度は200dpiである。
commons_translated
ja
ピケアの反動木、木の断面、カキノキ材、木の輪、不明の年代
commons_translated
bog down norway spruce picea spruce white spruce annual ring reaction