Navigation Links
ORNL researchers improve soil carbon cycling models
Date:8/16/2012

A new carbon cycling model developed at the U.S. Department of Energy's (DOE) Oak Ridge National Laboratory better accounts for the carbon dioxide-releasing activity of microbes in the ground, improving scientists' understanding of the role soil will play in future climate change.

Predicting climate change depends heavily on the cycling of carbon dioxide, which is found in four main reservoirs: the atmosphere, biosphere, oceans and soil. ORNL's model was designed to replace traditional soil carbon cycling models.

"Soil is a big reservoir of carbon," said co-author Melanie Mayes of ORNL's Environmental Sciences Division. "And most of the soil carbon cycling models in use today are so vastly simplified that they ignore the fact that decomposition is actually performed by microbes."

In a paper published in Ecological Applications, the journal of the Ecological Society of America, ORNL researchers integrated data from scientific literature on carbon degradation in soil to form the Microbial-Enzyme-mediated Decomposition, or MEND, model that improves upon previous models.

"Our MEND model does a better job of representing the mechanisms of soil carbon decomposition than existing models," Mayes said.

ORNL's comprehensive model accounts for how the different forms of carbon in soil, or "pools," react with extracellular enzymes excreted into the soil by microbes, allowing scientists to understand how quickly carbon is moving through soils.

The model simulates the carbon cycle, beginning after a decaying plant or animal releases carbon-rich materials into the soil. The organic material is degraded by enzymatic reactions, releasing dissolved carbon molecules that can be absorbed by microbes for growth or metabolism. These processes ultimately result in the release of carbon dioxide.

ORNL's MEND model is the first model able to track degradation by accounting for most of the relevant processes and by e
'/>"/>

Contact: Jennifer Brouner
brounerjm@ornl.gov
865-241-9515
DOE/Oak Ridge National Laboratory
Source:Eurekalert

Page: 1 2

Related biology news :

1. Researchers identify key culprit causing muscle atrophy
2. Researchers demonstrate control of devastating cassava virus in Africa
3. Researchers pursue red flag for schizophrenia relapse
4. A new line of defense: Researchers find cattle vaccine works to reduce E. coli O157:H7
5. Iowa State, Ames Lab researchers invent new tool to study single biological molecules
6. Wayne State researchers working to improve genetic analysis, disorder detection
7. Superbird stuns researchers
8. Massachusetts Eye and Ear researchers discover elusive gene that causes a form of blindness from birth
9. Researchers monitor red tides in Chesapeake Bay
10. BUSM researchers find link between childhood abuse and age at menarche
11. Researchers dig through the gene bank to uncover the roots of the evolutionary tree
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/7/2014)... professor, biomedical engineering, in the Grove School of ... have identified a molecule that could lead to ... forms of breast cancer. , Triple negative breast ... to aggressive proliferation and metastasis and a lack ... discovered the overexpression of intercellular adhesion molecule-1 (ICAM-1) ...
(Date:11/6/2014)... TALLAHASSEE, Fla. -- A groundbreaking paper from a team ... better understanding of how plants could adapt to and ... The research, published in the latest issue of the ... how chromatin (the complex of DNA and proteins) is ... material, so that some genes are turned on and ...
(Date:11/6/2014)... - Insilico Medicine, Inc, a Baltimore-based bioinformatics company ... diseases announced a research collaboration with the international ... Inc (OTC: CSBR). , "There are many companies ... Champions Oncology,s TumorGraft technology is unique in a ... experimentally generating vast amounts of valuable data. Our ...
Breaking Biology News(10 mins):Maize analysis yields whole new world of genetic science 2Insilico Medicine, Inc announces research collaboration with Champions Oncology, Inc 2
... therapy currently used to treat Helicobacter pylori (H. ... disorders, is unsuccessful in around 25 percent of ... Journal of Gastroenterology, finds that adding a bovine ... yield more effective results, with fewer of the ...
... true spontaneity exist ?in fruit flies. This is what ... 16, 2007 issue of the open-access journal PLoS ONE. ... complex robots which only respond to external stimuli," says ... They are assumed to be input-output devices. "When scientists ...
... but don’t count on them to prevent prostate ... Epidemiology, Biomarkers & Prevention, researchers based at the ... Center report that lycopene, an antioxidant predominately found ... In fact, the researchers noted an association ...
Cached Biology News:Do fruit flies have free will? 2No magic tomato? Study breaks link between lycopene and prostate cancer prevention 2
(Date:11/26/2014)... (PRWEB) November 25, 2014 Whitehouse ... officially joined the Morris County (New Jersey) Chamber ... is a leading business organization in the North ... to further engage some key clients in the ... in the geographic area. Membership enables Whitehouse Laboratories ...
(Date:11/26/2014)... Pittsburgh, PA (PRWEB) November 25, 2014 ... release of its official conference and exposition mobile app, ... available for free download in the App Store for ... as a valuable resource tool before, during and after ... guide containing details on exhibiting companies, technical sessions, Conferee ...
(Date:11/26/2014)... 26, 2014 CURE™ magazine ... on December 5, 2014, in San Francisco prior to ... Heroes event will honor clinicians, caregivers, and advocates who ... neoplasms (MPNs). , Special guest speaker Charles Esten, ... cancer journey at the reception. Over a decade ...
(Date:11/26/2014)... /PRNewswrie/ -- Theravalues Corporation annuncia con orgoglio il lancio ... di Hi Europe 2014 (dal 2 al 4 dicembre, ... della curcumina con la maggiore biodisponibilità di sempre, con ... approvati dalle norme europee. La curcumina è ... ( Curcuma longa ) che è stata associata con ...
Breaking Biology Technology:Whitehouse Laboratories Joins Morris County Chamber of Commerce 2Whitehouse Laboratories Joins Morris County Chamber of Commerce 3Pittcon Releases 2015 Mobile App 2CURE Magazine and Incyte to Honor MPN Heroes 2CURE Magazine and Incyte to Honor MPN Heroes 3CURE Magazine and Incyte to Honor MPN Heroes 4La curcumina con la maggiore biodisponibilità di sempre farà il suo debutto in Europa 2La curcumina con la maggiore biodisponibilità di sempre farà il suo debutto in Europa 3
... a privately-held biotech company using its proprietary platform technology ... gastrointestinal diseases, announced today that it has elected Christopher ... Inc. to its Board of Directors. ... on our Board," said Dr. Barbara Fox, founder, CEO ...
... Inc. (Nasdaq: SGMO ) today announced that the ... Wednesday, May 2, 2012, after the market closes. The press ... p.m. ET, which will be open to the public via ... review the financial results and discuss other business matters. ...
... 2012 The rise of the corporate ... investing are emerging key themes at BioTrinity, the-premier European ... business network which provides comprehensive support for bioscience businesses ... The first day of the conference saw ...
Cached Biology Technology:Avaxia Biologics Elects Christopher Kiritsy to its Board of Directors 2Sangamo BioSciences Announces First Quarter 2012 Conference Call and Webcast 2Corporate Venturing and Early-Stage Financing in the Spotlight at BioTrinity 2Corporate Venturing and Early-Stage Financing in the Spotlight at BioTrinity 3
... provides a convenient method to probe conformational changes ... substrates. Thus, the kit may be used to ... as transport substrates for MDR1. Because UIC2 binding ... substrates, the MDR1 Shift Assay can be utilized ...
... wide and long electrophoresis hood ... gel documentation systems. Placed on ... camera in place and provides ... photography on the lab bench. ...
... Zyagen tissue microarrays are derived from Paraffin ... rigorous quality control procedures to ensure the ... manually assembled in one block, sectioned at ... on coated slides. Sections are large (3-5 ...
... from frozen embedded tissue blocks, which are ... ensure the highest quality. Tissues of each ... sectioned at a thickness of 7microns and ... (3-5mm in diameter) in comparison to core ...
Biology Products: