3 天之前 · 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 California to the Yukon, in environments varying from rainy seacoasts to dry inland mountaintops, because genetically different strains have developed.

2025年3月27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 earthquakes occurring within the past thousand years is important in establishing earthquake risk and for predicting future earthquakes.

2025年3月27日 · 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. Prevailing winds, in most of the tree-growing northern hemisphere, are from the west.

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 state, along with the Gulmohar which has adapted to different climates. Whereas, in the wetter regions they documented trees like Champaca, varieties of Bauhinias and Bakula pushpa.

SeasonWatch, a citizen science project, will be introduced, highlighting its importance in collecting data on tree phenology across India. Key takeaways: Understand the relationship between trees, seasons, and climate change; Learn about SeasonWatch and its role in citizen science; Gain insights into India’s rich tree diversity; Registration link

2024年11月22日 · Don’t miss this opportunity to celebrate the end of the year in one of the best ways possible! Season watch invites you to organize and go on tree walks around you and SeasonWatch your trees. Participate, Complete the festival challenges and win exciting prizes!

2008年2月6日 · Tree 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.

2025年3月13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 enough to be sanded and finished into an attractive surface. An affected tree may grow a single burl or many; trees with multiple burls on both trunk and limbs have been ...

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 implies, the feltleaf sprouts canoe-shaped green leaves that feel fuzzy on the underside.

2011年2月10日 · The tree, a dawn redwood, died of unknown causes about 55 million years ago. Williams, a researcher at Franklin & Marshall College in Lancaster, Pennsylvania, studies ancient forests all over the world, including the high arctic of Canada, which now only hosts willows as thick as your wrist.