Daniel D. Richter

Daniel D. Richter

Professor of Soils and Forest Ecology

Richter’s research and teaching links soils with ecosystems and the wider environment, most recently Earth scientists’ Critical Zone.  He focuses on how humanity is transforming Earth’s soils from natural to human-natural systems, specifically how land-uses alter soil processes and properties on time scales of decades, centuries, and millennia.  Richter's book, Understanding Soil Change (Cambridge University Press), co-authored with his former PhD student Daniel Markewitz (Professor at University of Georgia), explores a legacy of soil change across the Southern Piedmont of North America, from the acidic soils of primary hardwood forests that covered the region until 1800, through the marked transformations affected by long-cultivated cotton, to contemporary soils of rapidly growing and intensively managed pine forests.  Richter and colleagues work to expand the concept of soil as the full biogeochemical weathering system of the Earth’s crust, ie, the Earth’s belowground Critical Zone, which can be tens of meters deep.  The research examines decadal to millennial changes in the chemistry and cycling of soil C, N, P, Ca, K, Mg, and trace elements B, Fe, Mn, Cu, Be, Zr, and Zn across full soil profiles as deep at 30-m.  Since 1988, Richter has worked at and directed the Long-Term Calhoun Soil-Ecosystem Experiment (LTSE) in the Piedmont of South Carolina, a collaborative study with the USDA Forest Service that quantifies how soils form as natural bodies and are transformed by human action, and a study that has grown to become an international model for such long-term soil and ecosystem studies.  In 2005, Richter and students initiated the first comprehensive international inventory project of the world’s LTSEs, using an advanced-format website that has networked metadata from 250 LTSEs.  The LTSEs project has held three workshops at Duke University, NCSU's Center for Environmental Farming Systems, and the USDA Forest Service's Calhoun Experimental Forest and Coweeta Hydrologic Laboratory, hosting representatives from Africa, Asia, Australia, Europe, and the Americas.  Richter's 60-year old Long Term Calhoun Soil and Ecosystem Experiment is linked to similar experiments and platforms around the world via the ‘Long-Term Soil-Ecosystem Experiments Global Inventory’, assembled by Dan Richter, Pete Smith, and Mike Hofmockel."He is an active member of the International Commission on Stratigraphy’s Working Group on the Anthropocene.  Richter has written in the peer-reviewed literature about all of these projects, and in November 2014 his soils research at the Calhoun and his soils teaching were featured in Science magazine.

In The News


Wade, A. M., D. D. Richter, V. P. Medjibe, A. R. Bacon, P. R. Heine, L. J. T. White, and J. R. Poulsen. “Estimates and determinants of stocks of deep soil carbon in Gabon, Central Africa.” Geoderma 341 (May 1, 2019): 236–48. https://doi.org/10.1016/j.geoderma.2019.01.004.
Holbrook, W Steven, Virginia Marcon, Allan R. Bacon, Susan L. Brantley, Bradley J. Carr, Brady A. Flinchum, Daniel D. Richter, and Clifford S. Riebe. “Links between physical and chemical weathering inferred from a 65-m-deep borehole through Earth's critical zone..” Scientific Reports 9, no. 1 (March 14, 2019). https://doi.org/10.1038/s41598-019-40819-9.
Brecheisen, Z. S., C. W. Cook, P. R. Heine, and D. D. B. Richter. “Micro-topographic roughness analysis (MTRA) highlights minimally eroded terrain in a landscape severely impacted by historic agriculture.” Remote Sensing of Environment 222 (March 1, 2019): 78–89. https://doi.org/10.1016/j.rse.2018.12.025.
Chen, C., D. Barcellos, D. D. Richter, P. A. Schroeder, and A. Thompson. “Redoximorphic Bt horizons of the Calhoun CZO soils exhibit depth-dependent iron-oxide crystallinity.” Journal of Soils and Sediments 19, no. 2 (February 12, 2019): 785–97. https://doi.org/10.1007/s11368-018-2068-2.
Richardson, J. B., A. A. Aguirre, H. L. Buss, A. Toby O’Geen, X. Gu, D. M. Rempe, and D. D. B. Richter. “Mercury Sourcing and Sequestration in Weathering Profiles at Six Critical Zone Observatories.” Global Biogeochemical Cycles 32, no. 10 (October 1, 2018): 1542–55. https://doi.org/10.1029/2018GB005974.

Recent Grants


SCISOC 490: Special Topics in Genome Sciences (SCISOC 490: Special Topics in Genome Sciences)
ENVIRON 593: Independent Studies and Projects (ENVIRON 593: Independent Studies and Projects)
ENVIRON 390: Special Topics in Environmental Sciences and Policy (ENVIRON 390: Special Topics in Environmental Sciences and Policy)
ENGLISH 490: Special Topics in Language and Literature (ENGLISH 490: Special Topics in Language and Literature)
GLHLTH 795: Connections in Global Health: Interdisciplinary Team Projects (GLHLTH 795: Connections in Global Health: Interdisciplinary Team Projects)

Contact Information

A205 Lab; Lev Sci Res Ctr, Science Dr.
Durham, NC 27708
Box 90328
Durham, NC 27708-0328


Ph.D., Duke University (1980)
B.A., Lehigh University (1973)

Additional Resources