HOME >> BIOLOGY >> NEWS
System to measure carbon dioxide flux from soil patented

Asheville, NC - USDA Forest Service researchers from the Southern Research Station (SRS) unit in Research Triangle Park, NC, have patented a system for measuring the carbon dioxide emitted from forest soils and the woody tissue of trees.

John Butnor, Chris Maier, and Kurt Johnson from the SRS Biological Foundations of Southern Forest Productivity and Sustainability unit developed the Automatic Carbon Efflux System (ACES) to more effectively measure the carbon that moves out through the soil as part of the carbon cycle.

As a key element in the process of photosynthesis, carbon dioxide is absorbed through the leafy canopy of the forest, then released back into the atmosphere by living organisms: as much as half of this respiration comes from decomposition in the forest soil. Tree roots, living wood, and nocturnal respiration are also part of this efflux of carbon dioxide from forest ecosystems.

"There is a great deal of interest in determining how much carbon dioxide forests can remove from the atmosphere and retain, or sequester, as carbon pools or sinks," says inventor John Butnor. "Accurately measuring carbon dioxide respiration from the forest is essential to truly understanding the carbon cycle. The ACES system gives us a way to dynamically measure soil and woody tissue respiration rates as they fluctuate during the day and change with the seasons."

Several methods have been used to measure carbon flux before ACES. In one method, a closed, static chamber is placed on the ground, using an alkali trap to catch carbon dioxide emitted from the soil. Another method involves taking periodic samples of soil in the same location and running gas chromatography tests to determine changes in carbon concentration over time. Both of these methods are time-consuming, require a technician to take measurements manually, and are sometimes inaccurate. Recent studies have demonstrated that closed measurement techniques underestimate gas flux.
'"/>

Contact: John Butnor
jbutnor@fs.fed.us
802-951-6771 x1230
Southern Research Station - USDA Forest Service
26-Feb-2004


Page: 1 2

Related biology news :

1. Snakehead in your inbox? Welcome to the nonindigenous Aquatic Species Alert System
2. North Shore-LIJ research collaboration with Correlogic Systems to advance ovarian cancer blood test
3. Institute for Systems Biology, Pacific Northwest National Laboratory announce collaboration
4. Light Biology, a biotech company based on UT Southwestern technology, bought by NimbleGen Systems
5. GenSAT (Gene Expression Nervous System Atlas) project announced
6. Systems tool new resource to aid groundwater cleanup
7. Systematic analysis of gene family uncovers new therapeutic targets for colon cancer
8. Systematics at a Crossroads: Biological and Philosophical Arguments
9. System failure to blame for Walkerton, North Battleford outbreaks, says U of T study
10. Applied Biosystems announces enhancements to Celera Discovery System and new subscription model
11. Supercomputing center partners with Institute for Systems Biology

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/17/2017)... -- NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or ... 2016 Annual Report on Form 10-K on Thursday April 13, 2017 ... ... Investor Relations section of the Company,s website at http://www.nxt-id.com  under ... http://www.sec.gov . 2016 Year Highlights: ...
(Date:4/11/2017)... BEACH GARDENS, Fla. , April 11, 2017 ... identity management and secure authentication solutions, today announced ... contract by Intelligence Advanced Research Projects Activity (IARPA) ... for IARPA,s Thor program. "Innovation has ... onset and IARPA,s Thor program will allow us ...
(Date:4/11/2017)... , April 11, 2017 NXT-ID, ... security technology company, announces the appointment of independent Directors Mr. ... to its Board of Directors, furthering the company,s corporate ... ... NXT-ID, we look forward to their guidance and benefiting from ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... 11, 2017 , ... At its national board meeting in ... Sheikh, the co-founder, CEO and chief research scientist of Minnesota-based Advanced Space Technology ... in ARCS Alumni Hall of Fame . ASTER Labs is a technology ...
(Date:10/11/2017)... 11, 2017  VMS BioMarketing, a leading provider of patient ... Clinical Nurse Educator (CNE) network, which will launch this week. ... among health care professionals to enhance the patient care experience ... and other health care professionals to help women who have ... ...
(Date:10/10/2017)... DIEGO, CALIF. (PRWEB) , ... October 10, 2017 , ... ... as part of its corporate rebranding initiative announced today. The bold new look ... its reach, as the company moves into a significant growth period. , It will ...
(Date:10/10/2017)... 10, 2017 SomaGenics announced the receipt of ... develop RealSeq®-SC (Single Cell), expected to be the first ... (including microRNAs) from single cells using NGS methods. The ... to accelerate development of approaches to analyze the heterogeneity ... "New techniques for measuring levels of mRNAs in individual ...
Breaking Biology Technology:
Cached News: