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Use of biochar (charcoal) to replenish soil carbon pools, restore soil fertility and sequester CO2

Submission by the United Nations Convention to Combat Desertification
4th Session of the Ad Hoc Working Group on Long-term Cooperative Action under the
Convention (AWG-LCA 4), Poznan, 1-10 December 2008
Submission containing ideas and proposals on Paragraph 1 of the Bali Action Plan:
Use of biochar (charcoal) to replenish soil carbon pools, restore soil fertility and sequester CO2


Best Management Practices for Wood Ash as a Soil Amendment
Prepared by Mark Risse, Extension Engineer, Updated by Julia Gaskin, Land Application Specialist 2002, Cooperative Extension Service,The University of Georgia College of Agricultural and Environmental Sciences

Wood was burned in the United States in the 1700s through the early 1900s to produce ash for chemical extraction. The ash was used mainly to produce potash for fertilizer and alkali for industry. As other potash production technologies became more economical, the value of wood ash as a raw material dropped.

J.W. Gaskin, Adam Speir, L.M. Morris, Lee Ogden, Keith Harris, D. Lee, and K.C Das, Proceedings of the 2007 Georgia Water Resources Conference, held March 27url clone | Nike News


Characterization of Pyrolysis Char for Use as an Agricultural Soil Amendment
Keith Harris1, Julia Gaskin1, Leticia Sonon2, and K.C. Das1
1Dept. of Biol. & Ag. Eng., 2AESL, College of Ag & Env. Sci University of Georgia, Athens, GA

The Southeastern Coastal Plain in the United States is a major agricultural production area; however, soils are typically low in cation exchange capacity (CEC), nutrient content, and organic carbon content. For example, Tifton


Pyrolysis Char - Land Application Study
Julia Gaskin (, Department Biological and Agricultural Engineering
Larry Morris (, Warnell School of Forestry and Natural Resources
University of Georgia Biorefining and Carbon Cycling Program


Char produced from the pyrolysis of peanut hulls and pine chips was applied to soil at 5 and 10 ton per acre quantities in ordetr to study the effects on plant growth.


Effect of Pyrolysis Char on Corn Growth and Loamy Sand Soil Characteristics
Julia Gaskin1, Lawrence Morris2, R.Dewey Lee3, Ryan Adolphson4, Keith Harris4, and K.C. Das4. (1) Univ Georgia, Dept. of Biol. & Ag. Eng, Athens, GA 30602, (2) Warnell School of Forest Resources, Univ of Georgia, Athens, GA 30602, (3) Univ of Georgia, Dept. of Crop & Soil Science, Tifton, GA 31793, (4) Univ of Georgia, Dept. of Biol. & Ag. Eng, Athens, GA 30602

Conserve or Invest? What We Earn from Carbon Utilization
Danny Day, Eprida / University of Georgia Bioconversion Center, Presentation to National Association of Conservation Districts, February 9, 2005

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Energy & Agricultural Carbon Utilization: Sustainable Alternatives to Sequestration
University of Georgia, Athens, Georgia, June 10-11, 2004

Oral Presentations

Discovery and Awareness of Anthropogenic Amazonian Dark Earths (Terra Preta)
Bill Denevan - Prof. Emeritus, University of Wisconsin at Madison, Madison, WI USA

Explorations of Pre-Columbian Agricultural Landscapes in the Amazon
Clark Erickson - Associate Professor of Anthropology, University of Pennsylvania, Philadelphia, PA USA

The Secrets of Making Terra Preta Soils

Managing Terra Preta: Modifications of an Agricultural System in a Nutrient-Poor Environment
Laura A. German, Socio-Ecologist, African Highlands Initiative / World Agroforestry Centre, PhD, Department of Anthropology, University of GeorgiaNike shoes | Nike SB

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