Cross section showing annual rings of western red cedar / western redcedar / pacific red cedar / giant cedar / shinglewood evergreen coniferous tree...
children exploring annual growth tree rings during a school class of environmental issues. - 年輪 個照片及圖片檔
February 25th, 2022: Associate Research Professor Irina Panyushkina of the Tree Ring Lab at the University of Arizona looks through a microscope with...
Tree rings - Each year, a tree forms new cells, arranged in concentric circles called annual rings that show the amount of wood produced during one...殘株
a two-year old woody dicot stem (tilia, basswood) in cross section showing plant anatomy 25x - 年輪 個照片及圖片檔
Trees in the Long Walk, Windsor, which were planted by Charles the Second, are being felled owing to elm disease. Every effort to check this disease...
Man stands next to the end of a giant spruce log, giving an idea of its huge scale. The log has been bucked, or cut into sections, for removal from...
Hardwood log from an illegal logging operation near Quang Tri, Vietnam. | Location: near Quang Tri, Vietnam.
Dr. Thomas Swetnam is shown on June 13 in the Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ. Swetnam's research involves the...