
Northern Tree Habitats - Geophysical Institute
Mar 7, 2025 · However, after seven growing seasons in Fairbanks, trees from the most northern homelands of the Dezadeash, Carmacks and Mayo areas of the Yukon are among the tallest, and the early starters from the south are now ranked at the bottom; although some of the trees from the Ft. Nelson area of British Columbia have maintained their relatively fast ...
Tropical Fossils in Alaska - Geophysical Institute
4 days ago · Paleobotanist Jack A. Wolfe of the United States Geological Survey at Menlo Park, California, has found a number of tropical rain forest fossils along the eastern Gulf of Alaska. These include several kinds of palms, Burmese lacquer trees, mangroves and trees of the type that now produce nutmeg and Macassar oil.
More on Why Tree Trunks Spiral - Geophysical Institute
Mar 7, 2025 · Granted, not all trees exhibit the same twist, but the majority of them do. The phenomenon can be likened to the claim that water will always spiral out of a drain in a counter-clockwise direction in the northern hemisphere. It is well known that you can make it spiral out in either direction, if you give it a little shove first.
Bonsai trees tell of winters long past - Geophysical Institute
Jun 23, 2022 · The trees have told him that giant weather systems like the Aleutian Low seem to have persisted despite human-caused warming. During winters when the Aleutian Low is strong, warmer temperatures and southerly winds create icy, stormy conditions that increase the likelihood of trees being damaged.
Feltleaf willows: Alaska’s most abundant tree
May 25, 2023 · The range of the feltleaf willow, probably the most numerous tree in Alaska. From Alaska Trees and Shrubs by Les Viereck and Elbert L. Little, Jr.
Cottonwood and Balsam Poplar - Geophysical Institute
Feb 27, 2025 · The Klukwan giant holds the national record for black cottonwood diameter. Its nearest rival, a tree near Salem, Oregon, does hold the national height record. The Klukwan giant belies the belief that trees tend to get smaller the farther north one goes. Both balsam poplar and cottonwood have value for fuel wood, pulp and lumber.
Trees as Earthquake Fault Indicators - Geophysical Institute
Mar 7, 2025 · Trees along faults often are killed by drowning because the faults tend to collect normal drainage water. In some instances, there are widespread tree kills caused by general subsidence. Killed by sinking caused in the great 1964 Alaskan earthquake, firmly stark forests of dead trees stand guard around the shore of upper Turnagain Arm, near ...
Tree line changes on the Kenai Peninsula | Geophysical Institute
Feb 6, 2008 · The changes in Kenai Peninsula trees might be due to the milder weather the peninsula, along with most of Alaska, has experienced since about 1977, when ocean-surface temperatures in the North Pacific warmed. Climatologists with the Alaska Climate Research Center report that the Homer area warmed 4.2 degrees Fahrenheit on average from 1949 to …
Skinny Trees and Paleoforests - Geophysical Institute
Jun 20, 1990 · Creber and Chaloner showed that warmth, not light, limits the growth of ring-forming trees. In June, struggling plants on Cornwallis Island, near 75 degrees north in the Canadian Arctic, receive nearly the same amount of light as thriving trees in the parks of Washington, D.C, near 40 degrees north latitude.
The majesty and mystery of Alaska yellow cedar
Mar 7, 2025 · These trees, which can live longer than 1,000 years, grow on the rainy coast from the Oregon/California border through British Columbia and as far north as Prince William Sound. The giants have in many areas died in large numbers, puzzling scientists who later came up with a non-intuitive theory of what killed them.