Syswerda, S. P., A. T. Corbin, D. L. Mokma, A. N. Kravchenko, and G. P. Robertson. 2011. Agricultural management and soil carbon storage in surface vs. deep layers. Soil Science Society of America Journal 75:92-101.
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accumulation rates and mechanisms. Ecosystems 10:58-73.
Paul, E. A., A. Kravchenko, A. S. Grandy, and S. Morris. In press. Soil organic matter dynamics: controls and management for sustainable ecosystem functioning. In S. K. Hamilton, J. E. Doll, and G. P. Robertson, editors. The ecology of agricultural ecosystems: long-term research on the path to sustainability. Oxford University Press, New York, New York, USA..
Collecting deep soil core samples on the KBS LTER
K.Stepnitz, Michigan State University
This graph shows how various farming methods affect soil carbon amounts in surface soils levels (~8 inches deep). Soil samples were collected in 2001, 12 years after treatments were established. Before treatments were established, there were no differences in soil carbon levels across the experimental plots. Annual field crops were a rotation of corn, soybeans, and wheat. Treatments with different lower case letters above them are statistically significantly different (p = 0.05).
Adapted from Syswerda et al. 2011.