Navigation Links
Scientists report dramatic carbon loss from massive Arctic wildfire
Date:7/28/2011

In a study published in this week's issue of Nature, Marine Biological Laboratory (MBL) senior scientist Gauis Shaver and his colleagues, including lead author Michelle Mack of the University of Florida, describe the dramatic impacts of a massive Arctic wildfire on carbon releases to the atmosphere. The 2007 blaze on the North Slope of the Alaska's Brooks Mountain Range released 20 times more carbon to the atmosphere than what is annually lost from undisturbed tundra.

As wildfires increase in frequency and size along Alaska's North Slope, the team contends the disturbances may release large amounts of the greenhouse gas CO2 to the atmosphere and accelerate the transformation of the frozen, treeless tundra of today into a different kind of ecosystem less capable of storing carbon. Together, the impacts could have profound implications on atmospheric carbon and climate.

Arctic tundra landscapes store huge amounts of carbon in cool, wet soils that are insulated by a layer of permanently frozen ground, or permafrost. Fire has been almost nonexistent in Alaska's North Slope for thousands of years and the effect of fires on the carbon balance of tundra ecosystems is largely unknown. However, with warming temperatures over the past half-century, the climate in the region is in transition, spurring more thunderstorms, lightning, and wildfires.

In 2007 the Anaktuvuk River fire ravaged a 40-by-10 mile swath of tundra about 24 miles north of Toolik Field Station, where Shaver is the principal investigator of the NSF's Arctic Long-Term Ecological Research project. The blaze was the largest ever recorded in the region.

While the Anaktuvuk River fire scorched only upper soil layers that are about 50 years old, it caused the release of more than two million metric tons of CO2 to the atmosphere. This amount is similar in magnitude to the annual carbon sink for the entire Arctic tundra biome averaged over the last quarter of th
'/>"/>

Contact: Diana Kenney
dkenney@mbl.edu
508-289-7139
Marine Biological Laboratory
Source:Eurekalert

Page: 1 2

Related biology news :

1. Jefferson scientists deliver toxic genes to effectively kill pancreatic cancer cells
2. Scientists identify novel inhibitor of human microRNA
3. Argonne scientists peer into heart of compound that may detect chemical, biological weapons
4. MU scientists go green with gold, distribute environmentally friendly nanoparticles
5. Scientists identify gene that may contribute to improved rice yield
6. Scientists discover why a mothers high-fat diet contributes to obesity in her children
7. MU scientists see how HIV matures into an infection
8. Earth scientists keep an eye on Texas
9. Thinking it through: Scientists call for policy to guide biofuels industry toward sustainability
10. Scientists identify a molecule that coordinates the movement of cells
11. Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... , Jan. 9, 2015 Valid S.A. ("Company") (BM&FBOVESPA: VLID3 ... in general the State of Washington,s ... a new enrollment and central issuance system for driver,s licenses ... The project planning and development will start in January ...
(Date:1/22/2015)... Fla. , Jan. 13, 2015  Today, FreeWavz ... technology, launched its crowdfunding campaign on Fundable, ... the build of production capacity to meet customer ... Photo - http://photos.prnewswire.com/prnh/20150113/168790 ...
(Date:1/22/2015)... 2015  BellBrook Labs, a leader in high throughput ... of a TR-FRET (time resolved Forster resonance energy ... a high throughput screening assay for glycosyltransferases and ... for sensitive detection of hundreds of human and ...
Breaking Biology News(10 mins):Valid USA Signs Contract For Washington Driver's License Issuance 2FreeWavz Launches on Fundable to Drive Speed-to-Market in 2015 2BellBrook Labs Launches a High Throughput Screening Assay for Glycosyltransferases with TR-FRET Readout 2
... Haven, Conn.Paleontologists have discovered a new species of dinosaur with ... skull, according to a paper published in the April issue ... species was a plant-eating dinosaur about as big as a ... said Nicholas Longrich of Yale University, lead author of the ...
... RIVERSIDE, Calif. Robert Luck , a professor of ... California Citrus Quality Council,s prestigious Albert G. Salter Memorial Award ... Luck is a leading expert in the research ... "This is a truly deserving award for Professor Luck ...
... The Marine Protected Areas Federal Advisory Committee will meet ... Charleston, S.C. The committee advises the Department of Commerce ... to the national system of MPAs. The ... includes integrating the national MPA system with the Coastal ...
Cached Biology News:New bony-skulled dinosaur species discovered in Texas 2UC Riverside entomologist recognized for research in citrus entomology 2
(Date:2/27/2015)... 2015  Pharmacyclics, Inc. (NASDAQ: PCYC ... its newly developed Bruton,s tyrosine kinase (BTK) inhibitor ... The results of these preclinical evaluations have been ... The feedback received from the Agency is supportive ... Additional preclinical work is required to begin a ...
(Date:2/27/2015)... --Research and Markets ( http://www.researchandmarkets.com/research/p2ddnr/global_market ) has announced ... report to their offering. , Global ... data on Trypsin globally and regionally ( Europe ... , Latin America etc.). It ... This report focuses on three primary areas; manufacture methods ...
(Date:2/27/2015)... Md. (PRWEB) February 27, 2015 ... Chromatography system (Nexera UC) can sequentially analyze up ... separation combined with high-sensitivity detection of targets by ... is designed to fulfill the measurement requirements of ... in food products, drug delivery and search for ...
(Date:2/27/2015)... , Feb. 27, 2015  Pfenex Inc. (NYSE ... development of biosimilar therapeutics, today announced that it will ... Marriott Marquis on March 2 nd at 3pm ... on a panel discussing the current state of the ... Biosimilars . For more information on ...
Breaking Biology Technology:Pharmacyclics Provides Clinical Update on BTK Inhibitor for Autoimmune Diseases 2Pharmacyclics Provides Clinical Update on BTK Inhibitor for Autoimmune Diseases 3Global Market Report of Trypsin 2014-2018 2Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 2Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 3
... CAMBRIDGE, Mass., Oct. 31 Idenix,Pharmaceuticals, Inc., (Nasdaq: ... results for the third quarter of 2007 on Tuesday, ... In conjunction with the issuance of the press release, ... ET on Tuesday, November,6, 2007 to discuss the company,s ...
... tech development, opportunities for business growth, COLUMBUS, ... Ohio,colleges and universities increased academic research expenditures in ... than ever into high,technology R&D sectors throughout the ... high tech research, development and,commercialization, especially in the ...
... SAN FRANCISCO, Oct. 31 Medivation, Inc.,(Nasdaq: MDVN ... chief,executive officer, will present at the Acumen BioFin Rodman ... at 11:15 a.m. Eastern,Time at the New York Palace ... Medivation and its clinical,development programs for Dimebon(TM) for Alzheimer,s ...
Cached Biology Technology:Ohio Academic Institutions Increase Research and Development Investments 2Ohio Academic Institutions Increase Research and Development Investments 3Medivation Announces Participation in Acumen BioFin Rodman & Renshaw 9th Annual Healthcare Conference 2
The mini vertical flow workbench is designed to perform PCR protocols in a particle-free environment. The built-in UV light ensures the elimination of any nucleic acid to avoid cross-contamination....
Request Info...
... The Cellject Uno Electroporator is ... for producing optimum efficiencies in bacterial ... simply selects one of two voltages ... or four mm cuvettes. On pressing ...
Request Info...
Biology Products: