Abstract: The Carbon Balance of No-till Agroecosystems - A Chronosequence Analysis. (ASA, CSSA and SSSA Annual Meetings (Cincinnati, OH- Oct. 21

294-7 The Carbon Balance of No-till Agroecosystems - A Chronosequence Analysis.

See more from this Division: S06 Soil & Water Management & Conservation
See more from this Session: Soil Management: Tillage Systems

Tuesday, October 23, 2012: 2:45 PM

Duke Energy Convention Center, Room 202, Level 2

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Pierre-Andre Jacinthe, Earth Sciences, Indiana University and Purdue University - Indianapolis, Indianapolis, IN, Warren Dick, The Ohio State University, Wooster, OH, Raj Shrestha, Department of Forest Resources and Environment Conservation, Virginia Tech, Blacksburg, VA, Rattan Lal, School of Environment and Natural Resources - The Ohio State University, Carbon Management and Sequestration Center, Columbus, OH, Serdar Bilen, Department of Soil Science, Ataturk University, 25240 Erzurum, Turkey and Toru Nakajima, Ohio State University, Columbus, OH

No-till (NT) farming has gained wide adoption in US and world agriculture, and could contribute to global warming mitigation and reduce the atmospheric CO₂ burden. It is well documented that NT practices generally result in higher SOC accumulation compared to conventional tillage (MP). However, in order to determine NT agro-ecosystem C balance, SOC accretion must be weighed against the emission of greenhouse gases (GHG: CO₂, N₂O and CH₄). A 2-year (2009-2011) study was conducted to assess SOC pools, and monitor GHG fluxes in adjacent cultivated fields under MP and NT for 9, 13, 36 and 48 years. These results will be analyzed to derive the C balance of each agro-ecosystem, and assess the sensitivity of that C balance to individual gaseous species in relation to NT duration.

See more from this Division: S06 Soil & Water Management & Conservation
See more from this Session: Soil Management: Tillage Systems

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