H23C:
Water, Sediment, and Biogeochemical Connectivity: Does the Occurrence of One Imply the Occurrence of Another?

Submit an Abstract to this Session

Session ID#: 6049

Session Description:
Connectivity, often expressed as the uninterrupted flow of matter, organisms or energy between landscape components, has been recognized as a key concept for understanding watershed systems. The concept of “water connectivity” is often used when quantifying the timing and magnitude of runoff transmission from source areas to streams, while sediment and biogeochemical connectivities also invoke the concept of source-strength. The degree to which water, sediment and biogeochemical connectivities are synchronous and interdependent, however, remains unclear in many landscapes. We invite contributions that address the relationships between transfers of water, sediment and pollutants from land to stream either using experimental data or within a modelling framework. We especially encourage contributions that explore the interactions and feedbacks between those transfers that can affect the timing and magnitude of pollutant exports from human-impacted watersheds. Studies which advance or question the representation of land-water connectivity in watershed models are also welcome.
OSPA Liaison:  Genevieve Ali, University of Manitoba, Manitoba's Watershed Systems Research Program, Winnipeg, MB, Canada
Chairs:  Genevieve Ali, University of Manitoba, Manitoba's Watershed Systems Research Program, Winnipeg, MB, Canada, Claire J Oswald, Ryerson University, Geography and Environmental Studies, Toronto, ON, Canada and Christopher C Wellen, McMaster University, School of Geography & Earth Sciences, Hamilton, ON, Canada
Primary Convener:  Genevieve Ali, University of Guelph, School of Environmental Sciences, Guelph, ON, Canada
Conveners:  Claire J Oswald, Ryerson University, Department of Geography & Environmental Studies, Toronto, ON, Canada and Christopher C Wellen, McMaster University, School of Geography & Earth Sciences, Hamilton, ON, Canada
Index Terms:

0496 Water quality [BIOGEOSCIENCES]
1847 Modeling [HYDROLOGY]
1860 Streamflow [HYDROLOGY]
1879 Watershed [HYDROLOGY]
Co-Sponsor(s):
  • B - Biogeosciences

Abstracts Submitted to this Session:

H23C-01
The strengths and weaknesses of using hydrological connectivity to interpret stream biogeochemistry (Invited) (33512)
Christopher Spence1, Rosa Brannen2, Newell Hedstrom3, Steve Kokelj4, Shawne Kokelj5, Meg McCluskie5 and Cherie Westbrook6, (1)Environment Canada Saskatoon, Saskatoon, SK, Canada, (2)University of Saskatchewan, Saskatoon, SK, Canada, (3)Environment and Climate Change Canada, Saskatoon, SK, Canada, (4)Northwest Territories Geoscience Office, Yellowknife, NT, Canada, (5)Environment and Natural Resources, Government of the Northwest Territories, Yellowknife, NT, Canada, (6)University of Saskatchewan, Department of Geography and Planning, Centre for Hydrology, Saskatoon, SK, Canada
H23C-02
Predicting seasonal stream chemistry from catchment topography: the importance of the near-stream zone. (33959)
Nora J Casson, University of Winnipeg, Department of Geography, Winnipeg, MB, Canada, Catherine Eimers, Trent University, Trent School of the Environment, Peterborough, ON, Canada, S.a. Watmough, Trent University, Environmental and Resource Studies, Peterborough, ON, Canada and Murray C Richardson, Carleton University, Geography and Environmental Studies, Ottawa, ON, Canada
H23C-03
Using Streamflow Recession Analysis to Understand Variations in Hydrologic Connectivity During Baseflow (34397)
Stephen B Shaw and Nicole Ng, SUNY College of Environmental Science and Forestry, Department of Environmental Resources Engineering, Syracuse, NY, United States
H23C-04
Modelling the impacts of fine-scale spatial configuration and connectivity of soil and land use on water, sediment and nutrient flows (36702)
Bethanna M Jackson, Victoria University of Wellington, Wellington, New Zealand
H23C-05
The re-eutrophication of the Laurentian Great Lakes and the potential influence of changes in agricultural land use, climate, and transport pathways (Invited) (36313)
Mohamed Mohamed1, Georgina Kaltenecker2, William Taylor3, Madeline Rosamond3 and Krista M Chomicki4, (1)Ontario Ministry of the Environment and Climate Change, Toronto, ON, Canada, (2)Ontario Ministry of the Environment, Conservation and Parks, Toronto, ON, Canada, (3)University of Waterloo, Waterloo, ON, Canada, (4)Toronto and Region Conservation Authority, Toronto, ON, Canada
H23C-06
Natural and anthropogenically-induced hydrological connectivity produces methylmercury hotspots in the Hudson Bay Lowlands, Canada (Invited) (36811)
Brian A Branfireun, Western University, Department of Biology, London, ON, Canada
H23C-07
Hydrochemical and isotopic end member mixing analysis to quantify snowmelt contributions to streamflow and lakes during arctic spring: application to hydrologic and mercury mass balance modelling (36714)
Murray Richardson, Carleton University, Geography and Environmental Studies, Ottawa, ON, Canada and Jamal Shirley, Nunavut Research Institute, Iqaluit, NU, Canada
H23C-08
Physical, Chemical, and Biological Connectivity of Water Bodies in a Watershed Context – Lessons from Naked Watersheds (Invited) (34569)
Michael N Gooseff1, Adam N Wlostowski2, Diane M McKnight1 and William B Lyons3, (1)University of Colorado Boulder, Civil, Environmental, and Architectural Engineering, Boulder, United States, (2)Colorado State University, Fort Collins, CO, United States, (3)Ohio State University Main Campus, School of Earth Sciences, Columbus, United States
See more of: Hydrology