internal structure of a tree trunk in cross section and close up. estuctura interna del tronco de un árbol en corte transversal y

trunk wood deforestation timber tree death close cracked ecology high angle forestry choped forest nature ring old plant removal dry awareness wooden hewed felling cut down climate change global worming impact industry lumber rest logging log stump botany fossil medulla heartwood sapwood cambium brown circle circular exploitation natural resource section roud split fissure cross-section detail grayish vegetation outdoor nobody crosswise showing its internal structure chopped plane ina