. Earth Science News .

Forest-destroying avalanches on the rise due to clear-cut logging
by Staff Writers
Ottawa, Canada (SPX) Apr 02, 2012

File image.

Scientists with the UBC Avalanche Research Group have been studying the impact of clear-cut logging on avalanche terrain in British Columbia. Understanding avalanche behavior and its destructive potential is an important factor in assessing risk of clear-cut logging of mature forest timber.

An article just published in the Canadian Geotechnical Journal presents data collected from locations where avalanches have been released due to clear-cut logging; these data demonstrate the adverse effects of poor logging practices.

"The idea of this study was to be able to predict, in a probabilistic sense, how far avalanches can penetrate into forest cover. It is important not only in logging applications but also for land-use planning in general," says author Dr. Dave McClung of the UBC Avalanche Research Group.

"The runout distance of an avalanche that penetrates forest cover can only be predicted using the methods in this paper. Avalanche dynamic models cannot be used for such an application since they cannot account for the extra resistance of forest cover.

If facilities - buildings, roads, etc. - are below avalanche terrain, planners need to know the chances that destructive avalanches can reach such facilities. This article contains the methods and data for doing so."

Dr. Ian Moore, Editor of the Canadian Geotechnical Journal, commented "We greatly value research publications in the Journal having a practical focus. This study from Dr. McClung and his colleagues is a wonderful example of work of high scholarly value having very significant safety implications.

"The result will be management of resources to improve both commercial and safety outcomes associated with optimized forestry practices."

Reference: Anderson, G. and McClung, D. Snow avalanche penetration into mature forest from timber-harvested terrain. Canadian Geotechnical Journal 49(4): 477-484. DOI: 10.1139/t2012-018.

Related Links
UBC Avalanche Research Group
Forestry News - Global and Local News, Science and Application

Get Our Free Newsletters Via Email
Buy Advertising Editorial Enquiries


. Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Scientists clone 'survivor' elm trees
Guelph, Canada (SPX) Apr 02, 2012
Scientists at the University of Guelph have found a way to successfully clone American elm trees that have survived repeated epidemics of their biggest killer - Dutch elm disease. The breakthrough, published in the Canadian Journal of Forest Research, is the first known use of in vitro culture technology to clone buds of mature American elm trees. "This research has the potential to ... read more

Filming in Chernobyl, the 'Land of Oblivion'

Japan eases Fukushima re-entry ban in some areas

NATO faulted over Libya boat-people deaths

Japan: Lessons learned from Fukushima

Dell buys 'cloud' computing company Wyse

Ultrafast laser pulses shed light on elusive superconducting mechanism

'Full-body' audit finds abuses at China Apple plants

ORNL process converts polyethylene into carbon fiber

Mud manifests history of clear water in murky Minnesota duck depot Lake Christina

Chinese fisherman killed in Palau shooting

TARA OCEANS completes 60 000-mile journey to map marine biodiversity

Marshall Islanders 'nomads' in own country: UN

PCBs levels down in Norwegian polar bears

Mammoth extinction not due to inbreeding

Energy requirements make Antarctic fur seal pups vulnerable to climate change

Increase in Arctic shipping poses risk to marine mammals

China's Tibetan herders face uncertain future

Some cool to tobacco industry research

Bacterial shock to recapture essential phosphate

DNA traces cattle back to a small herd domesticated around 10,500 years ago

Flood-ravaged Fiji struggles as cyclone bears down

Strong quake hits Mexico, no casualties reported

Flash floods cause havoc in Fiji

Flood-hit Fiji declares state of emergency

Regional group alerts troops after Mali fighting

Bodies, destroyed tanks at scene of Sudan battle: AFP

Mali coup leader trained with US military: Pentagon

Mali coup: Arab Spring spreads to Africa

In tech first, US puts entire 1940 census online

Discovery of foot fossil confirms two human ancestor species co-existed

Runner's high motivated the evolution of exercise

With you in the room, bacteria counts spike

Memory Foam Mattress Review

Newsletters :: SpaceDaily Express :: SpaceWar Express :: TerraDaily Express :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News


The content herein, unless otherwise known to be public domain, are Copyright 1995-2012 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement