Cottonwood and Balsam Poplar | Geophysical Institute
2025年1月9日 · While poplar may grow to 100 feet high and two feet across, cottonwood can reach to 125 feet and be much larger in diameter. Cottonwoods three feet in diameter at …
Northern Tree Habitats - Geophysical Institute
2025年1月9日 · 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 …
Burls - Geophysical Institute
2024年12月19日 · 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 …
Kannada pocket guide for Common Avenue trees of Karnataka
2019年8月8日 · But geography defines species. The team found trees like the Flame of the Forest, Indian laburnum, Pongam, the Indian coral tree widely spread in dry regions of the …
The largest black spruce in Alaska | Geophysical Institute
2010年8月16日 · 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 …
Witches' Broom - Geophysical Institute
2025年1月9日 · In interior Alaska and some parts of Canada, witches' broom (an abnormal outgrowth of branches of the tree resembling the sweeping end of a broom), is commonly …
Tree line changes on the Kenai Peninsula | Geophysical Institute
2008年2月6日 · The gradual change in tree line is one of many that people have noticed on the Kenai Peninsula in recent years. The most obvious is the 1980s-to-1990s Spruce bark beetle …
Feltleaf willows: Alaska’s most abundant tree
2023年5月25日 · The most plentiful moose food in the state — and probably Alaska’s most numerous tree — is the feltleaf willow, which was once called the Alaska willow. As its name …
Trees as Earthquake Fault Indicators - Geophysical Institute
2025年1月9日 · 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 …
The majesty and mystery of Alaska yellow cedar
2021年7月23日 · Probably because of chemical compounds within the tree like nootkatin that emit the pleasant odor and tint the wood yellow, Alaska yellow cedar endures like no other tree in …