The main focus of the Watershed Biogeochemistry Group is to investigate major elemental cycles in streams and their watersheds, particularly carbon, nitrogen, and phosphorus pools and fluxes. We are especially interested in quantifying and characterizing the rich array of organic molecules that exist in stream ecosystems, and serve as the main food source to microorganisms and consequently to all biological communities. Throughout the watershed, water is found in many places beyond stream channels, including aquifers, soils, and sediments. Our biogeochemistry laboratory has the capabilities to perform a wide range of chemistry analyses in water samples from all these places.
Watershed Biogeochemistry Staff
Watershed Biogeochemistry News
Agricultural soil microbiomes differentiate in soil profiles with fertility source, tillage, and cover crops
Bier, R.L., M. Daniels, D. Oviedo-Vargas, M. Peipoch, J.R. Price, E. Omondi, A. Smith, and J. Kan. 2024. Agriculture, Ecosystems & Environment, early online access.
Stroud Center Presents New Research to World’s Largest Group of Earth and Space Scientists
We shared our work with the broader scientific community, were inspired by the work of others, and mentored the next generation of freshwater scientists.
PFAS Explained
Forever chemicals threaten drinking water and human health. Learn how scientists are investigating PFAS contamination in farming.
Looking Back at Earth and Its Fresh Water From Space
All-star community science volunteers visit Goddard Space Flight Center and learn what NASA satellite data reveals about threats to streams.
Hydrologic implications of projected changes in rain-on-snow melt for Great Lakes Basin watersheds
Myers, D.T., D.L. Ficklin, and S.M. Robeson. 2023. Hydrology and Earth System Sciences 27(9): 1755–1770.
Stroud Center Scientist to Serve as Nature Conservancy Trustee
Diana Oviedo Vargas, Ph.D., is to serve as a trustee of the Nature Conservancy in Pennsylvania and Delaware, the conservancy recently announced.
