Interactive Effects of Biochar Addition Rates and Soil Type On Black C Losses As CO2 and Sequestration In Different Soil Organic Matter Fractions.

M. Francesca Cotrufo, Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO, Catherine Stewart, Soil Plant Nutrient Research, USDA- ARS, Fort Collins, CO and Jiyong Zheng, State Key Laboratory of Soil Erosion and Dyland Farming on the Loess Plateau, Northwest A & F University, Yangling, China