May 22, 2025 · They examined the present range of lodgepole pine and decided that the tree could survive in interior Alaska if given a chance. Lodgepole pine grows from southern …

May 22, 2025 · Prevailing winds, in most of the tree-growing northern hemisphere, are from the west. Combine these factors, and the westerly wind pushing on the thicker south side of the …

May 22, 2025 · Witches' broom on spruce trees is caused by a rust disease (a kind of fungus disease). The rust lives on the spruce tree throughout the year. Each spring, small yellow …

May 22, 2025 · Then using tree ring dating methods, it may be possible to date earthquakes occurring before historical records were kept. The ability to identify and date very large …

Aug 16, 2010 · The tree leans uphill, and its trunk is 45 inches around. When I hugged it, I could barely clasp my hands together. The largest black spruce in Alaska is a lucky tree, because its …

May 1, 2025 · A tree's age can be easily determined by counting its growth rings, as any Boy or Girl Scout knows. Annually, the tree adds new layers of wood which thicken during the …

May 22, 2025 · Since the hardness of the wood is related to the rate of growth, the wood inside a rapidly growing burl is softer than the wood elsewhere in the tree. Nevertheless, it is hard …

Sep 10, 2015 · This is where alder is not just another tree. Like other plants, alder pulls carbon dioxide through its leaves and converts that carbon into wood, roots and leaves. But in …

5 days ago · Photograph of a section cut from a tree with 5 burls that simultaneously grew at the same level on the tree. Annual growth rings can be followed around the tree trunk at center …

May 22, 2025 · It is 13 inches in diameter 46 feet from the ground (referred to as diameter at breast height or dbh) and is 77 feet tall. That's a fair size for a tree in interior Alaska, but the …