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.
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Marzolf, N.S., G.E. Small, D. Oviedo-Vargas, C.N. Ganong, J.H. Duff, A. Ramírez, C.M. Pringle, D.P. Genereux, and M. Ardón. 2022. Biogeochemistry 160: 259–273.
A new Stroud Center study shows that the density of water plays a previously overlooked role in nutrient and carbon cycling in freshwater ecosystems.
Oviedo-Vargas, D., M. Peipoch, and C. Dow. 2022. Journal of Geophysical Research: Biogeosciences 127(5): e2021JG006640.
Researchers at Stroud Water Research Center are using a rainfall simulator to assess how farming practices affect water quality in our streams and rivers.
Akinwole, P., J. Kan, L.A. Kaplan, and R.H. Findlay. 2021. Microbiology Spectrum 9(3) e01972-21.
Marzolf, N.S, G.E. Small, D. Oviedo-Vargas, C.N. Ganong, J.H. Duff, A. Ramírez, C.M. Pringle, D.P. Genereux, and M. Ardón. 2021. Biogeochemistry, early online access.