B44C:
The Dynamic World of Soil and Sediment Biogeochemistry: Drivers, Responses, and Implications II Posters

Submit an Abstract to this Session

Session ID#: 6165

Session Description:
Biogeochemical processes in soils and sediment are modulated by hydrological, climatic, biological and other environmental drivers that vary over space and on time scales from decades to minutes. It is increasingly recognised that temporal, sometimes oscillatory, environmental changes exert major controls on the functioning of soils and sediments, as well as on their interactions with the atmosphere, surface and groundwater.
In this session, we seek to illustrate the rich complexity of soil and sedimentary environments and how they respond to recent variations in environmental conditions caused by, for example, flooding, desiccation, water table fluctuations, groundwater discharge, bioturbation, freeze-thaw cycles, wave disturbance, contamination, eutrophication, rhizosphere activity and storms. The session will facilitate the exchange of concepts, data, measurement techniques and modelling approaches between scientists interested in advancing the understanding of soil and sediment biogeochemistry across temporal scales.
OSPA Liaison:  Chris Thomas Parsons, University of Waterloo, Ecohydrology Research Group, Waterloo, ON, Canada
Chairs:  Philippe Van Cappellen, Ecohydrology Research Group, Water Institute and Global Water Futures Program, University of Waterloo, Waterloo, ON, Canada, Alfonso Mucci, McGill University, Department of Earth and Planetary Sciences, Montreal, QC, Canada and Bjorn Sundby, Institut des Sciences de la Mer de Rimouski, Rimouski, QC, Canada
Primary Convener:  Alfonso Mucci, McGill University, Department of Earth and Planetary Sciences, Montreal, QC, Canada
Conveners:  Bjorn Sundby, Institut des Sciences de la Mer de Rimouski, Rimouski, QC, Canada, Chris Thomas Parsons, University of Waterloo, Department of Earth and Environmental Sciences, Waterloo, ON, Canada and Philippe Van Cappellen, University of Waterloo, Ecohydrology Research Group, Waterloo, ON, Canada
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0466 Modeling [BIOGEOSCIENCES]
0486 Soils/pedology [BIOGEOSCIENCES]
1051 Sedimentary geochemistry [GEOCHEMISTRY]
Co-Sponsor(s):
  • ES - Earth Surface Processes
  • H - Hydrology
  • SG - Sedimentary Geology and Paleobiology

Abstracts Submitted to this Session:

 
B44C-0087
Temporal Redox Fluctuations in Sediments: Pulsed Phosphorus Loadings in Freshwater Marsh Systems? (34323)
Chris Thomas Parsons, Fereidoun Rezanezhad, David O'Connell and Philippe Van Cappellen, University of Waterloo, Ecohydrology Research Group, Waterloo, ON, Canada
 
B44C-0088
Impact of soil freezing and thawing dynamics on greenhouse gas emission and nutrient fluxes (Invited) (34530)
Fereidoun Rezanezhad1, Chris Thomas Parsons1, Christina Marie Smeaton1, Radmila Kovac1, Tatjana Milojevic2 and Philippe Van Cappellen3, (1)University of Waterloo, Ecohydrology Research Group, Waterloo, ON, Canada, (2)University of Waterloo, Waterloo, ON, Canada, (3)Ecohydrology Research Group, Water Institute and Global Water Futures Program, University of Waterloo, Waterloo, ON, Canada
 
B44C-0089
Carbon isotope signature of CH4 and CO2 as a tool to unravel diagenetic pathways in lake sediments (35481)
Francois Clayer1,2, Anja Moritz2,3, Yves Gelinas2,4, André Tessier1 and Charles Gobeil2,5, (1)Institut National de la Recherche Scientifique-Eau Terre Environnement INRS-ETE, Quebec City, QC, Canada, (2)GEOTOP, Montreal, QC, Canada, (3)Concordia University, Department of Chemistry and Biochemistry, Montréal, QC, Canada, (4)Concordia University, Department of Chemistry and Biochemistry, Montreal, QC, Canada, (5)Institut National de la Recherche Scientifique, Centre Eau Terre Environnement, Quebec City, QC, Canada
 
B44C-0090
Geochemical Behavior of Cadimum during Early Diagenesis in Tidal Sediment from the Shuangtaizi Estuary, China (36073)
Baolin Liu and Yongsheng Nie, China University of Geosciences Beijing, School of Marine Sciences, Beijing, China
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