Abstract

The role of carbon (C)-mineral interactions in the long-term accumulation of soil organic matter is increasingly recognized as a key process in terrestrial C cycling.

We hypothesize that differences in mineralogy, as well as the nature of organic matter, as influenced by landscape topography, can result in different types of organic matter-mineral complexes.

In this preliminary study, we examined the structural composition of organic matter and its interaction with soil minerals along a pasture hillslope transect within the Christina River Basin Critical Zone Observatory (CRB-CZO)

Citation

Chen, C., Aufdenkampe, A.K., Yoo K., and Sparks D.L. (2010): Distribution, Speciation, and Elemental Associations of Soil Organic Carbon under Varying Landscape Topographic Positions at the Molecular Scale. 3rd Annual National CZO PI meeting, Boulder, CO, September 13-15..