Posted on September 5, 2014 by Bob Berwyn
Spruce beetle populations are surging in the southern Rocky Mountains.
Conservation advocates say more protection needed to protect critical ecosystem services
FRISCO — Forest degradation continues unchecked in many parts of the world and especially in the northern hemisphere boreal forest belt in Canada, Russia and Alaska, conservation advocates said this week, unveiling new maps showing forest impacts across more than 100 million hectares — an are three times the size of Germany.
Just since 2000, about 8 percent of the world’s remaining intact forest landscapes have been subject to some type of degradation from human activities, including logging and energy development.
The Greenpeace GIS Laboratory, the University of Maryland and Transparent World, in collaboration with the World Resources Institute and WWF-Russia, used satellite technology to determine the location and extent of the world’s last remaining large undisturbed forests, important harbors for biodiversity that are still unaffected by logging and infrastructure such as roads, mining and oil or gas development. Continue reading
Filed under: biodiversity, Environment, Forest health, forests | Tagged: Environment, forest fragmentation, Forest health, forests, global carbon cycle | Leave a comment »
Posted on September 2, 2014 by Bob Berwyn
New inventory assesses state’s woodland resources
FRISCO — Mortality is increasing and growth is slowing down in New Mexico’s forest lands, according to a new forest inventory released in late August. The only species showing overall growth are ponderosa and piñon pines, as well as junipers, as insects, wildfires drought and disease take an increasing toll on the state’s woodlands.
Forests grow on about 25 million acres in New Mexico, with 44 percent on private lands and 31 percent on national forest lands. About 40 percent (10.8 million acres) of the forests are piñon-juniper woodlands, by far the state’s most extensive forest type. Gambel oak is the most abundant tree species by number of trees, and ponderosa pine is the most abundant by volume or biomass. Overall, researchers estimate there are more than 6 billion live trees growing in the state.
The inventory documented the drought-induced piñon pine die-off in the early 2000s, estimating that about 8 percent the species died, but noted that the mortality rate has tapered off.New Mexico’s aspen forests, covering about 380,000 acres, held steady in the past decade. Continue reading
Filed under: climate and weather, Drought, Environment, forest fires, Forest health, forests, pine beetles and wildfires | Tagged: climate, drought, Environment, Forest health, Forest Service, forests, New Mexico, piñon-juniper forests | Leave a comment »
Posted on August 11, 2014 by Bob Berwyn
Careful measurements show how roads and other disturbances affect moisture and the ability of fungi and bacteria to break down dead wood
Forest fragmentation has a big impact on the carbon cycle. bberwyn photo.
By Summit Voice
FRISCO —Logging roads, clearcuts and other disturbances that fragment forests can slow the decay of dead wood and significantly alter the cycling of carbon and nutrients in woodland ecosystems, according to a new study.
Scientists with Earthwatch and the University of Exeter (UK) took a hard look at global forest fragmentation, starting the well-known fact that the edge effect influences temperature, moisture and other elements of forest microclimates. But the effect on the carbon cycle is less understood, so the researchers used on-the-ground experiments combined with modeling to try and fill the gaps. Continue reading
Filed under: Colorado, Environment, Forest health, forests | Tagged: carbon cycle, edge effect, Environment, Forest health, forests | Leave a comment »
Posted on June 13, 2014 by Bob Berwyn
From flood to flames: Western Colorado under Red Flag warning; wildfire danger highest in far west and Southwest
Wildfire potential for July 2014 courtesy NIFC.
By Summit Voice
FRISCO — It doesn’t take long to go from floods to fire in Colorado. Even with mountain streams still running high with runoff, weather experts say the fire danger is on the rise as June turns warm and windy. About a third of the state (mostly western Colorado) is under a Red Flag warning going into the weekend, with the National Weather Service warning that warm temps, low humidity and gusty winds will combine to raise the risk of wildfires.
Overall, the fire season outlook for Colorado is not as critical as the past few years, according to the National Interagency Fire Center, which is emphasizing the current fire danger in the far west and the Southwest, including big parts of Arizona and southwestern New Mexico. Continue reading
Filed under: Colorado, Environment, forest fires, forests | Tagged: Colorado, fire season outlook, forests, western wildfires, wildfire response, Wildfires | Leave a comment »
Posted on June 10, 2014 by Bob Berwyn
Some forests in the U.S. are greening up earlier than ever in a warming world. bberwyn photo.
Detailed Harvard research tracks changes in eastern forests
FRISCO — Forests in the eastern U.S. are greening up earlier than ever and staying green longer at the end of the growing season, Harvard scientists conclude in a new study.
Thanks to the extended growing season, the trees are storing more carbon dioxide, but there’s no guarantee that beneficial side effect will persist into the future, the researchers said, explaining that changing precipitation patterns could disrupt forests in other ways. Continue reading
Filed under: climate and weather, Environment, forests | Tagged: climate change, Environment, forests, global warming, growing season | Leave a comment »
Posted on May 26, 2014 by Bob Berwyn
Beetle-killed trees near Frisco, Colorado.
State Forest Service warns against transporting firewood
FRISCO — It may be a little like the Dutch boy putting his finger in the leaky dike, but Colorado Forest Service officials are warning that transporting firewood from place to place may increase the spread of invasive tree-killing bugs.
Moving firewood even short distances increases the risk to Colorado’s native forests and urban trees. With the 2013 detection of the highly destructive emerald ash borer in the City of Boulder, and ongoing bark beetle epidemics in the state’s mountain forests, the Colorado State Forest Service wants to be sure people are aware of the risks associated with moving firewood. Continue reading
Filed under: Colorado, Environment, Forest health, forests, pine beetles and wildfires | Tagged: Colorado, emerald ash borer, firewood, forests, insects, trees | 1 Comment »
Posted on March 17, 2014 by Bob Berwyn
State report details status of insect activities
Spruce beetles are widely active across the mountains of southern Colorado.
FRISCO — Windstorms, mild winters and drought are the key factors in the continued spread of spruce beetles, which have become the dominant change agent in Colorado forests the past few years.
According to the latest annual forest health report compiled by state forest experts, spruce beetles were active across 398,000 acres in 2013, affected more than triple the amount of acreage than mountain pine beetles. Continue reading
Filed under: Colorado, Environment, Forest health, forests, Summit County news | Tagged: Colorado, environments, forests, pine beetles, spruce beetles | Leave a comment »