Carbon Management and Sequestration Center, School of Environment and Natural Resources, College of Food, Agricultural, and Environmental Sciences, The Ohio State University, Columbus, Ohio, USA.
Address for correspondence: Dr. Klaus Lorenz, School of Environment and Natural Resources, 414B Kottman Hall, 2021 Coffey Rd, Columbus, OH 43210, USA. E-mail: [email protected]
Financial Disclosures/Conflicts of Interest: Funding was provided by the V. Kann Rasmussen Foundation. The author reports no conflicts of interest.
Received March 31, 2015.
Accepted for publication September 9, 2015.