Landscape Geo-ecology
Wetland ecology, hydrology, biogeochemistry, and paleoecology Special emphasis on groundwater/ecosystem interactions in large peat basins and their impact on vegetation patterning, carbon cycling, and greenhouse gas emissions

Current Projects

Groundwater-peatland interactions in large peat basins
Dynamics of greenhouse gases in deep peatlands
Vegetation patterning and paleoenvironmental reconstructions in South Florida with special focus on the Everglades
Paleoenvironmental reconstructions of peatlands in the Kenai Peninsula, Alaska
Reservoir sedimentation along the lower Nelson River, Maintoba

Publications (since 2000)

• Glaser, P.H. ( in prep. )   Wetlands and Environmental Change.   Arnold, London

  Glaser, P.H., D.I. Siegel, A.S. Reeve, and J.P. Chanton. ( in press ) The hydrology of large peat basins in North America, In Peatlands : basin evolution and depository of records on global environmental and climatic changes Martini, I.P., Matinez Cortizas, A., and Chesworth, W. (eds.) Elsevier, Amsterdam.

  Rosenberry, D.O., P.H. Glaser, and D.I. Siegel.   ( in press ).   The hydrology of northern peatlands as affected by biogenic gas: current developments and research needs.   Hydrological Pocesses.

  Siegel, D.I. and P.H. Glaser. ( in press ).   The hydrology of mires.   In Peatland Ecosystems K. Weider and D.H. Vitt (eds).   Springer-Verlag, Heidelberg

  McKenzie, J.M., Siegel, D.I., D.O. Rosenberry, Glaser, P.H., and C. Voss.   ( In press ). , Heat transport in the red lake bog, Glacial Lake Agassiz Peatlands.   Hydrological Processes.

  Siegel, D. I., P. H. Glaser, J. So, and D. R. Janecky ( in press ), The dynamic balance   between organic acids and circumneutral groundwater   in a large boreal peat basin.   Journal of Hydrology.

  Reeve, A.S., Evensen, R., Glaser, P.H., Siegel, D.I., Rosenberry, D.O. 2006.   Flow path oscillations in transient ground-water simulations of large peatland systems.   Journal of Hydrology 316: 313-324.

  Glaser, P.H.,   D.I. Siegel, A.S. Reeve, J.A. Janssens, and D.R. Janecky. 2004.   Tectonic drivers for vegetation patterning and landscape evolution in the Albany River region of the Hudson Bay lLowlands.   Journal of Ecology 92: 1054-1070.

  Glaser, P.H., B.C.S. Hansen, D.I. Siegel, A.S. Reeve, and Morin P.J.. 2004.    Rates, pathways, and drivers for peatland development in the Hudson Bay Lowlands, northern Ontario.   Journal of Ecology.92: 1036-1053.

  Glaser. P.H., J.P. Chanton, P. Morin, D.O. Rosenberry, D.I. Siegel, O. Ruud, L.I. Chasar, A.S. Reeve 2004. . Surface deformations as indicators of deep ebullition fluxes in a large northern peatland.   Global Biogeochemical Cycles, 18, GB1003, doi:10.1029/2003GB002069 (15 pages)

  Chanton J.P.,   L.C. Chasar   P. Glaser, and D. Siegel 2004.   Carbon and hydrogen   isotopic effects in microbial methane from terrestrial environments.   In   Stable Isotopes and Biosphere-Atmosphere Interactions. Edited by L.B. Flanagan, J.R. Ehleringer, D.E. Pataki, pp. 85-105, Elsevier-Academic Press, Physiological Ecology Series.

  Gorham, E., J.A. Janssens, and P.H. Glaser. 2003.    Rates of peat accumulation during the postglacial period in 32 sites from Alaska to Newfoundland, with special emphasis on northern Minnesota.   Canadian Journal of Botany 81: 429-438

  Rosenberry, D.O., P. H. Glaser, and D.I. Siegel, E.D. Weeks.   2003.   Use of hydraulic head to estimate volumetric gas content and ebullition flux in northern peatlands.   Water Resources Research 39(3) 1066.

  Glaser, P.H. 2002.   C.A. Weber's benchmark treatise on the Augstumal bog: reflections on its impact and significance to peatland ecology.   In J. Couwenberg and H. Joosten (eds.) C.A. Weber and the Raised Bog of Augstmal   IMCG and Grif & K, Tula, Russia

  Siegel, D.I., J.P. Chanton,   P.H. Glaser, L.S. Chasar,   and D.O. Rosenberry,   2001.   Estimating methane production rates in bogs and landfills by deuterium   enrichment of pore-water. Global Biogeochemical Cycles, 15: 967-975 .

  Reeve, A.S., J. Warzocha, P.H. Glaser, and D.I. Siegel.   2001.   Regional ground-water flow modeling of the Glacial Lake Agassiz peatlands, Minnesota.   Journal of Hydrology 243: 91-100.

  Reeve, A.S., D.I. Siegel, and P.H. Glaser. 2001.    Simulating dispersive mixing in large peatlands.   Journal of Hydrology 242: 103-114.

  Chasar, L. S., J. P. Chanton, P. H. Glaser, D. I. Siegel, and J. S. Rivers.   2001.   Radiocarbon and stable   carbon isotopic evidence for transport and transformation   of dissolved organic carbon, dissolved inorganic carbon, and CH 4   in a northern Minnesota peatland.   Global Biogeochemical Cycles 14:1095-1108.

  Chasar, L. S., J. P. Chanton, P. H. Glaser, and D. I. Siegel, 2000,   Methane concentration and stable isotope distribution as evidence of rhizospheric processes:   comparison of a fen and bog in the Glacial Lake Agassiz peatland complex.   Annals of Botany, 86: 655-663, .

  Reeve, A.S., D.I. Siegel, and P.H. Glaser. 2000.    Simulating vertical flow in large peatlands.   Journal of Hydrology 227: 207-217.

  Hogan, J.F., J.D. Blum, D.I. Siegel, and P.H. Glaser 2000.   87 Sr/ 86 Sr as a tracer of groundwater discharge and precipitation recharge in the Glacial Lake Agassiz Peatlands, northern Minnesota.   Water Resources Research 36: 3701-3710.