Species experiments in northern Sweden - 5-12 years after planting

abies lasiocarpa abies sibirica arbre forestier cold crecimiento croissance especies field experimentation forest plantations forest trees frio froid growth introduction de plantes larix sukaczewii picea abies picea glauca picea mariana pinus contorta pinus sylvestris plant introduction resistencia a la temperatura species suecia supervivencia survie survival sweden temperature resistance