Navigation Links
ORNL sows seeds with new agricultural carbon accounting tool
Date:6/2/2010

OAK RIDGE, Tenn., June 2, 2010 -- Carbon dioxide emissions from agricultural activity in the United States can now be tracked with unprecedented resolution because of a method developed at Oak Ridge National Laboratory.

A team led by Tristram West uses satellite remote sensing, computational resources and high-resolution national inventory datasets to pinpoint agricultural-based carbon emissions nationwide. The method, outlined in the journal Ecological Applications (http://www.esajournals.org/doi/full/10.1890/08-2352.1), provides a link between ground-based estimates and atmospheric measurements for any given agricultural point in the nation.

"This is a significant step toward compiling datasets and establishing a method useful for carbon accounting purposes," said West, a member of ORNL's Environmental Sciences Division.

"Until now, we have done project-level reporting and national-level reporting as two independent exercises," West said. "The first was for carbon credits while the second was for international reporting to the United Nations."

West noted that, with the current system, emissions from economic sectors are reported nationally as required under the U.N. Framework Convention on Climate Change. Project-level emissions are monitored on a case-by-case basis under independent projects or regional programs.

Doing both project- and national-level reporting in a consistent manner will become increasingly important as the U.S. and other countries move forward with climate agreements and legislation to reduce carbon dioxide emissions, according to West.

"If the U.S. enters into national or international agreements on emissions reductions, a consistent framework for monitoring and reporting net carbon dioxide emissions from the project to national levels will prove more effective and provide more accurate and consistent reporting than independent reporting processes," West said.

The ORNL method uses land cover data derived from NASA satellites to refine geospatial cropland carbon fluxes nationwide. Meanwhile, the Department of Agriculture's cropland data layer enables field-scale delineation of specific crops and allows for refined estimates of carbon fluxes.

Ultimately, this effort provides estimates of net ecosystem exchange of carbon for any given agricultural point in the U.S. This information about carbon flux based on crop, soil and management practices gives a measure of the total vertical carbon flux, including fossil fuel emissions occurring on site.

The research effort also provides estimates of net ecosystem carbon balance, which includes all carbon sources and sinks associated with crop production in a defined area.

"This means that upstream emissions from fertilizer production, for example, are accounted for in the same place where the crop is produced," West said. "This method allows for an estimate of the total impact of changing cropland management on net CO2 emissions."

Cropland management has proved to be an important consideration. For example, researchers reported that reduced tillage practices from 1990 to 2004 resulted in a net emissions reduction of 8.8 million metric tons of CO2 from burning fossil fuels in the U.S.

West notes that this version of the carbon accounting framework can be improved by anticipated improvements in annual crop species-specific biomass and crop residue production.


'/>"/>

Contact: Ron Walli
wallira@ornl.gov
865-576-0226
DOE/Oak Ridge National Laboratory
Source:Eurekalert

Related biology news :

1. Seeds of aflatoxin-resistant corn lines available
2. University of Minnesota scientist finds that big plant seeds dont always beat out small seeds
3. Seeds from the Moringa tree can be used for water purification
4. Caltech scientists control complex nucleation processes using DNA origami seeds
5. K-State researchers work with university in Ghana to create biofuels from native tree seeds
6. USGS science picks -- leads, feeds and story seeds
7. Large amounts of nitrogen stored beneath selected agricultural areas
8. How grass buffers keep agricultural herbicides at bay
9. Successful genome sequencing of pea aphid is a breakthrough for ecology and agricultural research
10. Delft breakthrough in bioethanol production from agricultural waste
11. Web-based innovation improves, eases agricultural terrace design
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/1/2016)... ( www.wocketwallet.com ) announces the launch of a new video featuring singer, ... Las Vegas , where Joey appeared at the Wocket booth to ... , where Joey appeared at the Wocket booth to meet and greet ... the Consumer Electronics Show (CES2016) in Las Vegas , ... --> --> The video is ...
(Date:1/25/2016)... , Jan. 25, 2016   Unisys Corporation (NYSE: ... at John F. Kennedy (JFK) International Airport, New York ... (CBP) identify imposters attempting to enter the United ... belong to them. pilot testing of the system ... at three terminals at JFK during January 2016. --> ...
(Date:1/22/2016)... Jan. 22, 2016 ... of the "Global Biometrics Market in ... offering. --> http://www.researchandmarkets.com/research/p74whf/global_biometrics ) ... "Global Biometrics Market in Retail Sector 2016-2020" ... --> Research and Markets ( http://www.researchandmarkets.com/research/p74whf/global_biometrics ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... 11, 2016  Neurocrine Biosciences, Inc. (NASDAQ: NBIX ) today ... 31, 2015. --> --> ... loss of $29.3 million, or $0.34 loss per share, compared to ... for the same period in 2014. For the year ended December ... or $1.05 loss per share, as compared to a net loss ...
(Date:2/11/2016)...  Spectra BioPharma Selling Solutions (Spectra) is a ... companies the experience, expertise, operational delivery and customer ... teams. Created in concert with industry leading commercial ... and tactical needs of its clients by providing ... personal and non-personal promotion. --> ...
(Date:2/11/2016)... February 11, 2016 ... or "Company") (OTCQB: PSID), a life sciences company ... its Thermomedics subsidiary, which markets the Caregiver® FDA-cleared ... plan in January 2016, including entering into agreements ... monthly sales growth, and establishing several near-term pipeline ...
(Date:2/11/2016)... ... 2016 , ... Global Stem Cells Group, has ... The new facility will provide advanced protocols and state-of-the-art techniques in cellular medicine, ... , The new GSCG clinic is headed by four prominent Ecuadorian physicians, including ...
Breaking Biology Technology: