http://www.bing.com:80/search?q=Tree+Layout+ToolsSearch resultshttp://www.bing.com:80/s/a/rsslogo.gifhttp://www.bing.com:80/search?q=Tree+Layout+ToolsCopyright © 2026 Microsoft. All rights reserved. These XML results may not be used, reproduced or transmitted in any manner or for any purpose other than rendering Bing results within an RSS aggregator for your personal, non-commercial use. Any other use of these results requires express written permission from Microsoft Corporation. By accessing this web page or using these results in any manner whatsoever, you agree to be bound by the foregoing restrictions.https://www.gi.alaska.edu/alaska-science-forum/northern-tree-habitats-0Interior Alaskan forests have only six native tree species: white spruce, black spruce, quaking aspen, balsam poplar, larch (tamarack) and paper birch. Northern Canadian forests have all of those, plus jack pine, balsam fir and lodgepole pine. Since northern Canada and interior Alaska share the same grueling climate and extremes of daylength, why are the Canadian tree species absent from ...Mon, 06 Apr 2026 02:28:00 GMThttps://www.gi.alaska.edu/alaska-science-forum/tree-rings-and-historyA 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 growing season and thin during the winter. These annual growth rings are easily discernible (and countable) in cross-sections of the tree's trunk. In good growing years, when sunlight and rainfall are plentiful, the growth rings ...Fri, 20 Feb 2026 02:02:00 GMThttps://www.gi.alaska.edu/alaska-science-forum/more-why-tree-trunks-spiralI eventually found a tree with a spiral lightning mark and it followed the spiral grain exactly. One tree, of course, proves nothing. "But why should the tree spiral? More speculation here: Foliage tends to be thicker on the south side of the tree because of better sunlight.Wed, 08 Apr 2026 01:28:00 GMThttps://www.gi.alaska.edu/alaska-science-forum/feltleaf-willows-alaskas-most-abundant-treeThe 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 implies, the feltleaf sprouts canoe-shaped green leaves that feel fuzzy on the underside.Wed, 08 Apr 2026 01:21:00 GMThttps://www.gi.alaska.edu/alaska-science-forum/tree-line-changes-kenai-peninsulaTree line didn’t change much on south-facing slopes, but trees and bushes got denser there. Katrina Timm and Alissa McMahon compared photos of the western Kenai hills from the 1950s to photos of the same area taken in 1996 to see the changes in tree line, which is among the most gradual and spotty indicators of warming.Fri, 10 Apr 2026 15:59:00 GMThttps://www.gi.alaska.edu/alaska-science-forum/cottonwood-and-balsam-poplarThe 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.Tue, 07 Apr 2026 04:21:00 GMThttps://www.gi.alaska.edu/alaska-science-forum/visit-exotic-tree-plantation-alaskaThe two-acre exotic tree plantation is part of a much-larger “boreal arboretum” on the UAF campus, which mostly consists of native spruce, birch, aspen, poplar and willow trees. Having borrowed the key from a researcher with UAF’s Agricultural and Forestry Experiment Station, Woodward has invited me to join him inside the chain-link fence.Wed, 08 Apr 2026 07:40:00 GMThttps://www.gi.alaska.edu/alaska-science-forum/bark-beetles-take-connecticut-size-bite-out-alaskaKnowing that, forest managers might be able to anticipate an outbreak and plan tree harvests ahead of the beetles or try preventative measures that might work on small outbreaks, such as tree thinning, pruning, setting out hormone traps for beetles, and getting rid of piles of logs that attract beetles.Tue, 07 Apr 2026 06:08:00 GMThttps://www.gi.alaska.edu/alaska-science-forum/pinhole-natures-lensSunlight passing through minor apertures between tree leaves is focused like the rays in a pinhole camera (and, just as with a simple lens, the image is upside-down).Thu, 02 Apr 2026 16:01:00 GMThttps://www.gi.alaska.edu/alaska-science-forum/black-spruceBlack spruce, unlike some other trees, tend to produce seed annually or nearly annually. They start bearing cones at about age 15. Once black spruce seed cones mature, they may remain on the tree for several years. So regardless of when a fire strikes, mature seeds are available, and many are tough enough to survive the fire.Thu, 09 Apr 2026 17:12:00 GMT