Navigation Links
To avoid carbon debt, CRP beats fields of corn, soybeans
Date:8/9/2011

221.10.254.64

EAST LANSING, Mich. --- Farmers and policymakers should wait before converting Conservation Reserve Program land to corn and soybean production, according to a Michigan State University study.

The study, which appears in the current issue of the Proceedings of the National Academy of Sciences, focuses on CRP land, a federal program encouraging farmers to grow natural vegetative cover rather than crops, and its role in the production of biofuels. A team of MSU researchers shows directly for the first time that the carbon costs of converting these lands to corn and soybeans is high even when care is taken to protect soil carbon from loss by using no-till cultivation practices.

Carbon debt results from carbon dioxide and other greenhouse gases released when land is converted from natural vegetation to agriculture. It's called debt because until a new biofuel crop creates enough renewable fuel to offset the lost CO2, the new biofuel crop has no climate benefit. In fact, it's the same as burning fossil fuel as far as the atmosphere is concerned, said Ilya Gelfand, MSU postdoctoral researcher who worked with the Great Lakes Bioenergy Research Center.

"Conversion creates carbon debt, which must be paid off before the biofuel crop can provide climate mitigation benefits," he said. "No-till practices (planting without plowing) reduced by two-thirds the amount of debt created by the conversion, but still it would take 29 to 40 years for it to be repaid by growing corn and soybean for biofuel."

Alternatively, growing CRP grasses harvested for cellulosic ethanol would create no debt and provide immediate energy and climate mitigation benefits, he added.

"The conversion of CRP lands to corn and soybean production has a larger climate consequence than has been previously estimated," Gelfand said. "And much of the debt comes from the loss of soil carbon that would have been stored in CRP land in the future had it not been converted."

Nationally, more than 30 million acres are set aside as CRP land, and they provide significant climate, wildlife and other conservation benefits, said Phil Robertson, a co-author and MSU professor of crop and soil sciences.

"Growing CRP grasses rather than using the land for corn or corn-soybean production could maintain these benefits indefinitely while providing a valuable bioenergy feedstock," he said. "It could be a win-win for farmers and the environment once a market for cellulosic biofuel develops."

The GLBRC team also included MSU researchers Poonam Jasrotia and Stephen Hamilton as well as scientists from the University of Toledo. The study was performed at Michigan State's Kellogg Biological Station in partnership with MSU's Long-term Ecological Research program funded by the National Science Foundation.


'/>"/>

Contact: Layne Cameron
lscameron@ur.msu.edu
517-353-8819
Michigan State University
Source:Eurekalert

Related biology news :

1. How yeast chromosomes avoid the bad breaks
2. How killer immune cells avoid killing themselves
3. Avoid risking childrens health during home energy retrofits, renovations, experts urge
4. Whale sharks do the math to avoid that sinking feeling
5. ISU researchers discover cause of immune system avoidance of certain pathogens
6. Gene that causes barnacles to avoid ship hulls identified
7. New armor developed to avoid infection from AIDS virus
8. Drinking tap water may help you avoid dentists drill
9. What should goldenrod do to avoid an insect attack? Duck
10. Avoiding dairy due to lactose intolerance is unnecessary in most cases
11. Forest deal at Copenhagen must avoid creating carbon refugees
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/9/2016)... ISTANBUL , June 9, 2016  Perkotek an innovation leader in attendance control ... to seamlessly log work hours, for employers to make sure the right employees are ... Logo - http://photos.prnewswire.com/prnh/20160609/377486LOGO ... ... ...
(Date:6/2/2016)... 2016 The Department of Transport Management ... 44 million US Dollar project, for the , ... Personalization, Enrolment, and IT Infrastructure , to ... and implementation of Identity Management Solutions. Numerous renowned international vendors ... Decatur was selected for the most compliant and ...
(Date:5/24/2016)... 2016 Ampronix facilitates superior patient care by providing unparalleled technology to leaders ... is the latest premium product recently added to the range of products distributed by ... ... ... LCD Medical Display- Ampronix News ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... June 23, 2016 ... 2016;12(1):22-8 http://doi.org/10.17925/OHR.2016.12.01.22 Published recently ... peer-reviewed journal from touchONCOLOGY, Andrew D Zelenetz ... of cancer care is placing an increasing burden ... expensive biologic therapies. With the patents on many ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... line of intelligent tools designed, tuned and optimized exclusively for Okuma CNC machining ... Chicago. The result of a collaboration among several companies with expertise in toolholding, ...
(Date:6/22/2016)... DUBLIN , June 22, 2016 Research ... and Global Markets" report to their offering. ... $39.4 billion in 2014 from $29.3 billion in 2013. The market ... (CAGR) of 13.8% from 2015 to 2020, increasing from $50.6 billion ... and projected product forecasts during the forecast period (2015 to 2020) ...
(Date:6/22/2016)... SAN DIEGO , June 22, 2016   ... the first pluripotent stem cell-derived islet replacement therapy for ... two presentations at ISSCR 2016 Annual Meeting.  ISSCR 2016, ... 22nd to 25th at Moscone West in San Francisco.  ... Details of the presentations are as follows:Event: , Focus ...
Breaking Biology Technology: