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Carbon budgets and greenhouse gas emissions associated with two long-term tillage and crop rotation sites in Ohio

Campbell, Brittany Doreen
http://rave.ohiolink.edu/etdc/view?acc_num=osu1354559256

Abstract Details

2012, Master of Science, Ohio State University, Natural Resources.
Agriculture and its environmental effects are topics of much interest. What role does agriculture play in atmospheric enrichment of CO2? What role can it play in sequestering atmospheric CO2? What data do we have to provide answers to the questions that are being asked? This thesis collates and evaluates data from long-term research plots in Wooster and Hoytville, to focus on specific ways agriculture effects the environment. First a database was created for the two research sites from a vast amount of data collected over the past 50 years at these sites. From this database a C budget was created to evaluate the effect of tillage (no-tillage - NT, chisel tillage - MT, and moldboard plow tillage - PT) and crop rotation (corn following corn - CC and corn following soybean - CS) on C enrichment of the atmosphere. At both sites, the CC rotation had C budgets that were significantly lower (by 10-20 Mg C/ha over the year time span) than the CS rotation. Wooster NT treatments were significantly lower than MT or PT (5-10 Mg C/ha/50 years), while for Hoytville MT and PT treatments were lower than NT by 15 Mg C/ha/49 years. Also studied, using current samples, was the effect tillage (NT and MT) and crop rotation (CC and CS) had upon greenhouse gas (GHG) emissions. GHG emissions were two times less at Hoytville than Wooster. At both sites the CC rotation produced more GHG emissions than did the CS rotation. The effect of tillage varied by gas and site, but overall GHG emissions from NT were less than MT for Wooster and NT was greater than MT for Hoytville. The combination of no-tillage and rotating corn with soybean generally produced less GHG emissions. When combined with the other benefits that have been found for combining no-tillage with crop rotations, this information leads to the conclusion that the adoption of both practices will lead to crop production and environmental benefits.
Warren Dick, PhD (Advisor)
Robert Mullen, PhD (Committee Member)
Brian Slater, PhD (Committee Member)
422 p.
Agriculture; Environmental Management; Environmental Science; Natural Resource Management; Soil Sciences
Database; tillage; crop rotation; greenhouse gases; carbon budget

Recommended Citations

Citations

  • Campbell, B. D. (2012). Carbon budgets and greenhouse gas emissions associated with two long-term tillage and crop rotation sites in Ohio [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1354559256

    APA Style (7th edition)

  • Campbell, Brittany. Carbon budgets and greenhouse gas emissions associated with two long-term tillage and crop rotation sites in Ohio. 2012. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1354559256.

    MLA Style (8th edition)

  • Campbell, Brittany. "Carbon budgets and greenhouse gas emissions associated with two long-term tillage and crop rotation sites in Ohio." Master's thesis, Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1354559256

    Chicago Manual of Style (17th edition)

osu1354559256
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© 2012, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.