News tagged with national forest
Study reveals potential to amass more carbon in eastern North American forests
With climate change looming, the hunt for places that can soak up carbon dioxide from the atmosphere is on.
Space & Earth / Earth Sciences
Apr 06, 2009 |
4.9 / 5 (39) |
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Ecologists discover forests are growing faster
Speed is not a word typically associated with trees; they can take centuries to grow. However, a new study to be published the week of Feb. 1 in the Proceedings of the National Academy of Sciences has found evidence that f ...
Feb 01, 2010 |
4.7 / 5 (28) |
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Climate change may kill the Amazon rainforest
(PhysOrg.com) -- The dieback of the Amazonian forests caused by climate change is not inevitable but remains a distinct possibility, according to a study led by the Professor of Ecosystem Science at Oxford. ...
Feb 10, 2009 |
2.6 / 5 (26) |
6
Study characterizes 300-million-year-old tropical forest preserved in volcano ash
(PhysOrg.com) -- Pompeii-like, a 300-million-year-old tropical forest was preserved in ash when a volcano erupted in what is today northern China. A new study by University of Pennsylvania paleobotanist Hermann ...
Space & Earth / Earth Sciences
Feb 20, 2012 |
5 / 5 (10) |
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Giant Sequoias Yield Longest Fire History from Tree Rings
(PhysOrg.com) -- California's western Sierra Nevada had more frequent fires between 800 and 1300 than at any time in the past 3,000 years, according to a new study led by Thomas W. Swetnam, director of UA's ...
Mar 17, 2010 |
4.9 / 5 (9) |
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Wolves, moose and biodiversity: An unexpected connection
Moose eat plants; wolves kill moose. What difference does this classic predator-prey interaction make to biodiversity?
Nov 02, 2009 |
4.9 / 5 (7) |
4
Scientists predicts continued death of forests in southwestern US due to climate change
(Santa Barbara, Calif.) –– If current climate projections hold true, the forests of the Southwestern United States face a bleak future, with more severe –– and more frequent –– forest fires, ...
Dec 13, 2010 |
4.3 / 5 (6) |
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The case of the dying aspens
Over the past 10 years, the death of forest trees due to drought and increased temperatures has been documented on all continents except Antarctica. This can in turn drive global warming by reducing the amount of carbon dioxide ...
Dec 12, 2011 |
5 / 5 (5) |
4
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Handful of heavyweight trees per acre are forest champs
Big trees three or more feet in diameter accounted for nearly half the biomass measured at a Yosemite National Park site, yet represented only one percent of the trees growing there.
May 02, 2012 |
5 / 5 (5) |
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Ferns took to the trees and thrived
(PhysOrg.com) -- As flowering plants like giant trees quickly rose to dominate plant communities during the Cretaceous period, the ferns that had preceded them hardly saw it as a disappointment.
Jul 02, 2009 |
4.8 / 5 (5) |
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Satellites reveal surprising connection between beetle attacks, wildfire
If your summer travels have taken you across the Rocky Mountains, you've probably seen large swaths of reddish trees dotting otherwise green forests. While it may look like autumn has come early to the mountains, ...
Sep 08, 2010 |
4.8 / 5 (5) |
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Biologist solves mystery of tropical grasses' origin
Around 30 to 40 million years ago, grasses on Earth underwent an epic evolutionary upheaval. An assemblage capitalized on falling levels of atmospheric carbon dioxide by engineering an internal mechanism to concentrate the ...
Feb 08, 2010 |
4.6 / 5 (5) |
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Fog has declined in past century along California's redwood coast
California's coastal fog has decreased significantly over the past 100 years, potentially endangering coast redwood trees dependent on cool, humid summers, according to a new study by University of California, Berkeley, scientists.
Space & Earth / Earth Sciences
Feb 15, 2010 |
3.1 / 5 (7) |
3
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Ground zero in timber wars shows signs of peace
(AP) -- On a steep slope of the Rogue River-Siskiyou National Forest, a crew of young men with chain saws and hardhats worked their way through an old neglected clearcut, cutting brush and young trees and ...
Jun 21, 2009 |
4.2 / 5 (5) |
2
Carbon emissions from peat-swamp forest clearing quantified
(PhysOrg.com) -- Peat-swamp forests in Southeast Asia are being cleared to make way for food production and for oil-palm plantations for biofuel, but now a new study has quantified the resultant carbon emissions ...
Mar 08, 2011 |
4 / 5 (5) |
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