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
Scientific and educational aspects of water quality and stream health in Eastern Pennsylvania
Aufdenkampe, A.K., T.L. Bott, C.L. Dow, J.K. Jackson, L.A. Kaplan, A.E. Schuyler, and B.W. Sweeney. 2010. Stroud Water Research Center, Avondale, Pennsylvania.
The boundless carbon cycle
Battin, T.J., S. Luyssaert, L.A. Kaplan, A.K. Aufdenkampe, A. Richter, and L.J. Tranvik. 2009. Nature Geoscience 2:598–600.
Temporal dynamics of seston: a recurring nighttime peak and seasonal shifts in composition in a stream ecosystem
Richardson, D.C., L.A. Kaplan, J.D. Newbold, and A.K. Aufdenkampe. 2009. Limnology and Oceanography 54(1):344–354.
Water quality monitoring in the source water areas for New York City: an integrative watershed approach
Arscott, D.B., A.K. Aufdenkampe, T.L. Bott, C.L. Dow, J.K. Jackson, L.A. Kaplan, J.D. Newbold, and B.W. Sweeney. 2008. Final report on monitoring activities, 2000-2005. Stroud Water Research Center, Avondale, Pennsylvania.
Spatial and temporal variation in streambed bacterial community composition and correlation with environmental variables
Hogan, K. R. 2008. Ph.D. dissertation. University of Pennsylvania, Philadelphia. Adviser: L.A. Kaplan.
Transport, sources, and quality of seston in a Piedmont headwater stream
Richardson, D. C. 2008. Ph.D. dissertation. University of Maryland. Adviser: L.A. Kaplan.
