Navigation Links
Certain Arctic lakes store more greenhouse gases than they release
Date:7/31/2014

years ago," according to their article, published online today. They found that high rates of carbon accumulation in lake sediments were stimulated by several factors, including "thermokarst erosion and deposition of terrestrial organic matter, nutrient release from thawing permafrost that stimulated lake productivity, and by slow decomposition in cold, anoxic lake bottoms."

"These lakes are being fertilized by thawing yedoma permafrost," explained co-author Miriam Jones, a research geologist for the U.S. Geological Survey. Yedoma is a type of permafrost that is rich in organic material. "So mosses and other plants flourish in these lakes, leading to carbon uptake rates that are among the highest in the world, even compared to carbon-rich peatlands."

The study also revealed another major factor of this process: when the lakes drain, previously thawed organic-rich lake sediments refreeze. The new permafrost formation then stores a large amount of carbon processed in and under thermokarst lakes, as well as the peat that formed after lake drainage.

Researchers note that the new carbon storage is not forever, since future warming will likely start re-thawing some of the permafrost and release some of the carbon in it via microbial decomposition.

As roughly 30 percent of global permafrost carbon is concentrated within 7 percent of the permafrost region in Alaska, Canada and Siberia, this study's findings also renew scientific interest in how carbon uptake by thermokarst lakes offsets greenhouse gas emissions. Through its data collection, the study expanded the circumpolar peat carbon pool estimate for permafrost regions by more than 50 percent.


'/>"/>

Contact: Peter West
pwest@nsf.gov
703-292-7530
National Science Foundation
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Nicotine found to inhibit DNA-strand break caused by a certain carcinogen in smoke
2. SHAREHOLDER ALERT: Pomerantz Law Firm Announces the Filing of a Class Action against Provectus Biopharmaceuticals, Inc. and Certain Officers - PVCT
3. Animals conceal sickness symptoms in certain social situations
4. First demonstration in human cells of chromosomal translocations that cause certain cancer
5. Hotspots of climate change impacts in Africa: Making sense of uncertainties
6. Certain genetic variants may put bladder cancer patients at increased risk of recurrence
7. Montreal researchers find a link between pollutants and certain complications of obesity
8. Drifting herbicides produce uncertain effects
9. Are sweetpotato weevils differentially attracted to certain colors?
10. Mating is the kiss of death for certain female worms
11. Gene found to be crucial for formation of certain brain circuitry
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Certain Arctic lakes store more greenhouse gases than they release
(Date:6/23/2015)... Minn. , June 23, 2015   ... company that supports the entire spectrum of clinical ... iMedNet ™ , the company,s intuitive, ... been awarded a Silver 2015 Stevie® Award by ... Health Products & Services Website category.  The American ...
(Date:6/18/2015)... This report analyzes the worldwide markets for ... Segments, which includes Immunoassay Analyzers and Reagents: Enzyme Immunoassay ... Systems, and Nephelometric Immunoassay Systems. The report provides separate ... , Japan , Europe ... Latin America , and Rest of World. Annual ...
(Date:6/17/2015)... JOSE, Calif. , June 17, 2015 /PRNewswire/ ... in human interface solutions, today announced that Xiaomi, ... adopted the Synaptics ® ClearPad ® ... of display driver integrated circuits (DDICs) for its ... Pro. By leveraging ClearPad for full in-cell display ...
Breaking Biology News(10 mins):MedNet Solutions' iMedNet eClinical Wins Silver Stevie Award 2Global Immunoassay Systems Market 2Global Immunoassay Systems Market 3Global Immunoassay Systems Market 4Global Immunoassay Systems Market 5Global Immunoassay Systems Market 6Global Immunoassay Systems Market 7Global Immunoassay Systems Market 8Global Immunoassay Systems Market 9Global Immunoassay Systems Market 10Global Immunoassay Systems Market 11Global Immunoassay Systems Market 12Global Immunoassay Systems Market 13Global Immunoassay Systems Market 14Global Immunoassay Systems Market 15Global Immunoassay Systems Market 16Global Immunoassay Systems Market 17Global Immunoassay Systems Market 18Global Immunoassay Systems Market 19Global Immunoassay Systems Market 20Global Immunoassay Systems Market 21Global Immunoassay Systems Market 22Global Immunoassay Systems Market 23Global Immunoassay Systems Market 24Global Immunoassay Systems Market 25Global Immunoassay Systems Market 26Global Immunoassay Systems Market 27Global Immunoassay Systems Market 28Global Immunoassay Systems Market 29Synaptics Touchscreen and Display Driver IC Solutions Power Xiaomi's Latest Flagship Smartphones 2Synaptics Touchscreen and Display Driver IC Solutions Power Xiaomi's Latest Flagship Smartphones 3
... Increasing the consumption of whole grain products and ... requires an understanding of the views of consumers. The ... studies, each in four European countries, in order to ... the effect of claims and cues on consumer perception. ...
... who consume a higher level of dietary protein are ... daily dietary protein intake is less, according to a ... Hebrew SeniorLife in Boston, an affiliate of Harvard Medical ... of 946 seniors from the Framingham Osteoporosis Study, found ...
... fleet has to work 17 times harder to catch the same ... boats were powered by sail, according to new research. Researchers ... used UK Government data on the amount of fish caught and ... power to analyse the change in fish stocks since 1889. ...
Cached Biology News:Dietary protein may reduce hip fractures in the elderly 2Fishing fleet working 17 times harder than in 1880s to make same catch 2
(Date:6/30/2015)... Florida (PRWEB) , ... June 30, 2015 , ... ... cannabis digital media company, launched “Cannavoices,” an unprecedented digital video and broadcast ... largest but also the most dynamic collection of legal medical cannabis stories ever ...
(Date:6/29/2015)... 30, 2015   Pharnext SAS today announced that ... the treatment of Charcot-Marie-Tooth Type 1A (CMT1A), is being presented ... Peripheral Nerve Society (PNS) Biennial Meeting at the Quebec Congress ... 27 - July 2, 2015. At Poster Viewing ... 1, 5p.m. to 7p.m. EDT: Poster 23: ...
(Date:6/29/2015)... ... June 29, 2015 , ... The global microfluidics market is ... period (2015 to 2020). The market is mainly driven by the rising geriatric ... R&D. However, lack of adequate healthcare and research infrastructure in emerging markets, dearth ...
(Date:6/29/2015)... WASHINGTON , June 29, 2015  AACC, ... to better health through laboratory medicine, is pleased ... journal, Clinical Chemistry , has increased to ... Reports. This increase places Clinical Chemistry ... and reflects the significant influence of the research ...
Breaking Biology Technology:Cannavoices Launches a Legal Medical Cannabis Documentary Initiative 2Cannavoices Launches a Legal Medical Cannabis Documentary Initiative 3Pharnext's PXT-3003 Featured in Multiple Presentations at 2015 Peripheral Nerve Society Biennial Meeting 2Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 2Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 3Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 4Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 5AACC's Journal, Clinical Chemistry, Continues to Have Significant Impact on Medical Testing, Healthcare 2AACC's Journal, Clinical Chemistry, Continues to Have Significant Impact on Medical Testing, Healthcare 3
... Barbara, Calif.) Inspired by the popular confidence trick ... have demonstrated the ability to hide and shuffle "quantum-mechanical ... three microwave resonators, or "quantized shells." In a ... journal Nature Physics, UCSB researchers show the first demonstration ...
... Onyx Pharmaceuticals, Inc. (Nasdaq: ONXX ) ... (FDA) has granted fast track designation for carfilzomib, a ... patients with relapsed and refractory multiple myeloma. The Fast ... facilitate the development, and expedite the review of drugs ...
... BioStorage Technologies, a global leader in scientific ... for the bioscience industry, will host a half-day ... in San Francisco on April 11, 2011. ... bring together industry thought leaders to discuss new ...
Cached Biology Technology:UCSB physicists challenge classical world with quantum-mechanical implementation of 'shell game' 2Onyx Pharmaceuticals Receives Fast Track Designation for Carfilzomib; Company Initiates Rolling NDA Submission for Accelerated Approval 2Onyx Pharmaceuticals Receives Fast Track Designation for Carfilzomib; Company Initiates Rolling NDA Submission for Accelerated Approval 3Onyx Pharmaceuticals Receives Fast Track Designation for Carfilzomib; Company Initiates Rolling NDA Submission for Accelerated Approval 4BioStorage Technologies to Host Global Sample Management Benchmarking Symposium in Conjunction with Biorepositories Asia Conference 2BioStorage Technologies to Host Global Sample Management Benchmarking Symposium in Conjunction with Biorepositories Asia Conference 3