Navigation Links
Peat and forests save permafrost from melting
Date:9/13/2007

Hamilton, ON. September 13, 2007 Permafrost may be buffered against the impacts of climate change by peat and vegetation present in the northern regions, according to a study by McMaster researchers.

Permafrost is frozen soil that remains at or below 0 oC for at least two consecutive years. Currently, it covers more than 30 per cent of the Earths surface and about 42 per cent (four-million square kilometres) of Canadas land mass.

The study was published recently in Geophysical Research Letters.

There is no doubt that northern regions are warming and permafrost is melting as shown by numerous observations and modeling studies, says Altaf Arain, co-author of the study and associate professor in the School of Geography and Earth Sciences. However, there is large uncertainty about the rate and magnitude of permafrost degradation and thaw depth.

Previous studies using the U.S. National Center for Atmospheric Research Community Climate Model suggest that global warming is rapidly melting permafrost in the North regions. According to those studies, only a million square kilometres of the currently estimated 10.5-million square kilometres of permafrost would remain by the end of this century.

However, Arain says these studies failed to consider the impact of peat and vegetation cover.

A layer of peat above the permafrost acts as insulation by trapping air pockets, which reduce heat transfer and helps permafrost retention, he says. Vegetation can also help slow the rate at which permafrost melts because it shades the ground.

Arain and co-author Dr. Ming-ko (Hok) Woo, professor emeritus at the School of Geography & Earth Sciences, used the NCAR Community Land Model (CLM3) with several modifications and historical climate records. Their results indicated that although permafrost degradation was predicted over the 2000 to 2100 period, areas with mineral-based soil and no vegetation were most affected. <
'/>"/>

Contact: Jane Christmas
chrisja@mcmaster.ca
905-525-9140 x27988
McMaster University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Live fast, die young true for forests too
2. U.N. mulls the protection of Earths forests
3. Expanding forests darken the outlook for butterflies, study shows
4. Emerald Spectre haunts Ontarios ash forests
5. Tropical dry forests receive international recognition
6. Scientists must offer solutions for conserving tropical forests in a rapidly changing world
7. New book on rain forests, slash-and-burn agriculture
8. Diverse tropical forests defy metabolic ecology models
9. Himalayan forests disappearing
10. Report highlights change in Canadas forests
11. Soil nutrition affects carbon sequestration in forests
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... 16, 2014 Valencell, a leader in performance biometric ... to industry leaders such as Intel, Jabra, Atlas, and ... wearable products. These products will be showcased at CES ... Vegas . "Our partners choose ...
(Date:12/11/2014)... , Dec. 09, 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced the addition of ... to their offering. One major trend ... biometric systems. Multimodal biometric systems utilize more than one ...
(Date:12/10/2014)... Baptist Medical Center today announced plans for a new medical ... $50 million capital project is part of a larger capital ... The medical education building will be located in the ... 525@vine in Wake Forest Innovation Quarter. Construction will begin immediately ...
Breaking Biology News(10 mins):Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 4
... Huntington,s disease, a mutated protein in the body becomes toxic ... small region adjacent to the mutated segment plays a major ... the National Institutes of Health show that very slight changes ... mice. Researchers do not fully understand why the protein ...
... the atomic structure of new anti-cancer agents has enabled a ... capable of halting a common type of drug-resistant lung cancer. ... 24/31 issue of the journal Nature , the researchers ... to the drugs Iressa and Tarceva were stymied by a ...
... Microbiology has awarded one of its international professorships to ... department at Kansas State University. The society has ... will be a visiting professor at the Universidad Nacional ... his Fusarium Laboratory Workshop in March 2010. The ...
Cached Biology News:Small changes in protein chemistry play large role in Huntington's disease 2Small changes in protein chemistry play large role in Huntington's disease 3Research yields new agent for some drug-resistant non-small cell lung cancers 2Research yields new agent for some drug-resistant non-small cell lung cancers 3
(Date:1/23/2015)... Biofertilizers stimulate microbial activities in soil. These microorganisms ... the activities in the soil or in the rhizosphere. ... stress on reducing environmental pollution and on reducing the ... segments the bio fertilizers market with analysis and forecasting ...
(Date:1/23/2015)... 2015 Portal Solutions , a technology ... Microsoft Office 365 and SharePoint platforms , today announces ... for being one of the region’s fastest-growing mid-sized companies based ... , “To be recognized a second year in a ...
(Date:1/22/2015)... January 22, 2015 Shimadzu Scientific ... UV-1280 multipurpose UV-visible spectrophotometer. Offering wavelength scanning from ... is ideal for applications in a variety of ... , The user-friendly UV-1280 enables intuitive operation, while ...
(Date:1/22/2015)... (PRWEB) January 22, 2015 GEA Niro ... table top laboratory homogenizer, the PandaPLUS 2000, which is ... nanoemulsions , and cell disruption . This compact ... products, fruit juices, liquid food, food additives and ingredients ...
Breaking Biology Technology:Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 2Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 3Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 4Washington SmartCEO Announces Portal Solutions as 2015 Future 50 Award Winner Second Year in a Row 2Washington SmartCEO Announces Portal Solutions as 2015 Future 50 Award Winner Second Year in a Row 3Shimadzu’s New Monitored Single-Beam UV-Vis Spectrophotometer Offers Comprehensive Measurement Options in a Compact Body 2GEA Niro Soavi Announces the PandaPLUS 2000 Homogenizer for Processing New Applications for Nanoemulsions and Cell Disruption 2
... 7 Biocept, Inc. ("Biocept"), an emerging leader in biotechnology, ... "We are pleased to welcome Bruce to ... we move into our next stage of development," said Stephen ... been a practicing Certified Public Accountant since 1986.  He is ...
... that a new market research report is available in ... R&D: Technology and Market 2010-2025 ... – how will biobanking develop and contribute to healthcare? ... you want to know the prospects for biobanking in ...
... Pharmaceutical Inc. (Nasdaq: BMRN ) ... Officer of BioMarin, will host a conference ... at 5:00 p.m. ET to discuss third ... Number:  866.202.3048International Dial-in Number:  617.213.8843Participant Code: 60493555Replay ...
Cached Biology Technology:Reportlinker Adds Biobanking for Medical R&D: Technology and Market 2010-2025 2Reportlinker Adds Biobanking for Medical R&D: Technology and Market 2010-2025 3Reportlinker Adds Biobanking for Medical R&D: Technology and Market 2010-2025 4Reportlinker Adds Biobanking for Medical R&D: Technology and Market 2010-2025 5Reportlinker Adds Biobanking for Medical R&D: Technology and Market 2010-2025 6Reportlinker Adds Biobanking for Medical R&D: Technology and Market 2010-2025 7Reportlinker Adds Biobanking for Medical R&D: Technology and Market 2010-2025 8Reportlinker Adds Biobanking for Medical R&D: Technology and Market 2010-2025 9Reportlinker Adds Biobanking for Medical R&D: Technology and Market 2010-2025 10Reportlinker Adds Biobanking for Medical R&D: Technology and Market 2010-2025 11BioMarin to Host Third Quarter 2010 Financial Results Conference Call and Webcast on Thursday, October 28 at 5:00 p.m. ET 2
ROCK-1 (cleaved) Monoclonal Ab 100 ug purified mouse monoclonal antibody. Clone# 12M03. Reacts with human. Tested in Western blot analysis....
Mouse monoclonal [LPL4A.1] to Plastin L ( Abpromise for all tested applications). SwissProtID: P13796...
Mouse monoclonal [CAT-1] to Chloramphenicol Acetyltransferase ( Abpromise for all tested applications)....
... are designed for use with the ProQuest ... MaV203 contains deletions in the endogenous GAL4 ... two-hybrid systems. The strain also has leu2 ... bait and prey vectors. MaV203 contains three ...
Biology Products: