Free Newsletters - Space News - Defense Alert - Environment Report - Energy Monitor
. 24/7 Space News .




ICE WORLD
University of Alberta scientists get dirty at the Robson Glacier
by Staff Writers
Ottawa, Canada (SPX) Jul 26, 2013


Hahn and Quideau measured soil microbial community composition and functional diversity, and determined the influence of Engelmann spruce (Picea engelmannii Parry) and yellow mountain avens (Dryas drummondii Rich.) on soil microbial community succession along the glacier chronosequence.

Glacier retreat areas provide an excellent window into the evolution of microbial communities, an ideal opportunity for scientists to study how quickly soil biological functions become established and how ecosystems begin to form. Soils are not static in the landscape, but instead evolve with time under the influence of multiple environmental factors - understanding how these factors interact can lead to advancements in the science and management of soils.

Aria Hahn and Dr. Sylvie Quideau, researchers at the University of Alberta, conducted their research in Mount Robson Provincial Park along the Robson Glacier in British Columbia. Standing 3954 m tall, Mount Robson is the highest point in the Canadian Rocky Mountains and supports a large ice- and snowfield. Their study was published in the Canadian Journal of Soil Science.

"We are excited to present some of the first data documenting microbial community diversity, biomass and function along a 100-year-old soil chronosequence in a Canadian glacier retreat area," says Dr. Quideau. "These beautiful natural wonders provide an excellent opportunity to study the development of soils and the microbial communities that live within them."

Hahn and Quideau measured soil microbial community composition and functional diversity, and determined the influence of Engelmann spruce (Picea engelmannii Parry) and yellow mountain avens (Dryas drummondii Rich.) on soil microbial community succession along the glacier chronosequence. They found that while soil microbial composition remained relatively stable, total biomass and fungal activity of the community responded to changes in the soil environment and increased as the soil aged.

Correlations between microbial respiration of carbon substrates with the soil nitrogen content indicated that the soil microbial community was influencing changes in the soil environment. Yellow mountain avens, a plant known to support nitrogen fixation, increased soil microbial biomass, although this effect took 40 years after deglaciation to emerge.

"Soils and their inhabiting microbes differ greatly among glacier sites around the Earth. We believe that by understanding the natural phenomena in glaciers here at home, we can not only advance the management of Canadian ecosystems but also contribute valuable knowledge to the global community."

.


Related Links
AgriculturalInstitute of Canada
Beyond the Ice Age






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




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





ICE WORLD
New iceberg theory points to areas at risk of rapid disintegration
Ann Arbor MI (SPX) Jul 23, 2013
In events that could exacerbate sea level rise over the coming decades, stretches of ice on the coasts of Antarctica and Greenland are at risk of rapidly cracking apart and falling into the ocean, according to new iceberg calving simulations from the University of Michigan. "If this starts to happen and we're right, we might be closer to the higher end of sea level rise estimates for the n ... read more


ICE WORLD
Environmental Controls Move Beyond Earth

Bad night's sleep? The moon could be to blame

Moon Base and Beyond

First-ever lunar south pole mission could be attempted by 2016

ICE WORLD
Mars Rover Opportunity Nears Solander Point

Curiosity Mars Rover Gleams in View from Orbiter

Mars Curiosity sets one-day driving distance record

Scientists establish age of Mars meteorites found on Earth

ICE WORLD
Tenth Parachute Test for NASA's Orion Adds 10,000 Feet of Success

Zero Point Frontiers Delivers Favorable Architecture Assessment to Golden Spike Company

NASA and Korean Space Agency Discuss Space Cooperation

NASA Advanced Technology Concepts Selected for Study

ICE WORLD
China launches three experimental satellites

Medical quarantine over for Shenzhou-10 astronauts

China's astronauts ready for longer missions

Chinese probe reaches record height in space travel

ICE WORLD
Unmanned Russian cargo craft lands in Pacific Ocean

Russian supply ship docks with orbiting space station

ISS Research Exposing the Salty Truth of Supercritical Water Transitions

NASA launches new probe of spacesuit failure

ICE WORLD
The second satellite arrives for Arianespace's upcoming heavy-lift Ariane 5 launch

Arianespace's heavy-lift Ariane 5 mission orbits key satellite payloads for Europe and India

Three Soyuz launchers are at the Spaceport for Arianespace's upcoming medium-lift missions from French Guiana

Flawless launch of Alphasat, Europe's largest and most sophisticated telecom satellite

ICE WORLD
Chandra Sees Eclipsing Planet in X-rays for First Time

A warmer planetary haven around cool stars, as ice warms rather than cools

Solar system's youth gives clues to planet search

Snow falling around infant solar system

ICE WORLD
US Lawmaker Seeks to Partner with Russia to Clean Up Space

Superfluid turbulence through the lens of black holes

Perfecting digital imaging

Ancient technology for metal coatings 2,000 years ago can't be matched even today




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - 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