B32A:
Impacts of Winter Climate Change on Hydrobiogeochemical Dynamics of Terrestrial and Aquatic Systems During the Winter and Shoulder Seasons I


Submit an Abstract to this Session


Session ID#: 59762

Session Description:
Winters in temperate and boreal regions are characterized by sustained low temperatures and snow accumulation. As winters warm, the loss of these conditions have important implications for ecosystem processes during winter and throughout the rest of the year. However, significant uncertainties prevail in quantifying and predicting the hydrobiogeochemical processes of snow-dominated terrestrial systems occurring during the winter and shoulder seasons as the climate changes. We seek contributions that advance our mechanistic understanding of how changing winter conditions affect terrestrial and aquatic ecosystems, both within and outside of winter. We invite presentations from observational, experimental, and modelling studies of hydrological, biogeochemical and ecological processes across spatial and temporal scales and land use types. We are interested in research that advances our understanding of how changing winters impact ecosystem microbial activity, infiltration and hydrologic flowpaths, freeze-thaw effects on carbon and nutrient exchanges, and the coupling-decoupling of microbial and plant interactions.
Primary Convener:  Alexandra Contosta, University of New Hampshire, Earth Systems Research Center, Durham, United States
Conveners:  Sarah J. Nelson, University of Maine, Orono, United States, Fereidoun Rezanezhad, Ecohydrology Research Group, University of Waterloo, Earth and Environmental Sciences, Waterloo, ON, Canada and Patrick Sorensen, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States
Primary Liaison:  Alexandra Contosta, University of New Hampshire, Earth Systems Research Center, Durham, United States
Chairs:  Alexandra Contosta, University of New Hampshire, Earth Systems Research Center, Durham, United States and Patrick Sorensen, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States
OSPA Liaison:  Sarah J. Nelson, University of Maine, Orono, United States

Cross-Listed:
  • C - Cryosphere
  • H - Hydrology
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0470 Nutrients and nutrient cycling [BIOGEOSCIENCES]
0475 Permafrost, cryosphere, and high-latitude processes [BIOGEOSCIENCES]
1863 Snow and ice [HYDROLOGY]

Abstracts Submitted to this Session:

Multi-scale Investigations of the Impact of (Early) Snowmelt on Water and Nitrogen Cycles at the mountainous East River Watershed, CO (Invited) (357349)
Susan S. Hubbard1, Bhavna Arora2, Eoin Brodie2, Baptiste Dafflon3, Patrick Sorensen2, Heidi Steltzer4, Chelsea Wilmer5, Yuxin Wu6 and the Watershed Function SFA Team, (1)Oak Ridge National Laboratory, Oak Ridge, TN, United States, (2)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (4)Iliff School of Theology, Denver, United States, (5)Fort Lewis College, Durango, CO, United States, (6)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States
Uncovering the metabolic processes driving microbial activity beneath the snowpack and mechanisms of microbial biomass turnover and nitrogen release following snowmelt (445664)
Eoin Brodie1, Harry R Beller2, Nicholas Bouskill3, Romy Chakraborty4, Zhao Hao1, David W Hoyt5, Ulas Karaoz6, Malak Tfailly7, Yuxin Wu4 and Patrick Sorensen1, (1)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States, (2)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (3)Lawrence Berkeley National Laboratory, Climate and Ecosystem Sciences Division, Berkeley, CA, United States, (4)Lawrence Berkeley National Laboratory, Berkeley, United States, (5)Pacific Northwest National Laboratory, Richland, WA, United States, (6)Lawrence Berkeley National Laboratory, Molecular Ecology and Biogeochemistry, Berkeley, United States, (7)Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, WA, United States
Plant trait, vegetation, ecosystem, and landscape responses to earlier snowmelt and foresummer drought: long-term monitoring and experiments reveal the drivers of carbon exchange in a Colorado watershed (465375)
Brian Joseph Enquist1, Amanda Henderson1, Lindsey Sloat2, Lorah Beth Patterson3, Christine Lamanna4, Chelsea Wilmer5, Sandra M Duran6, Haruko M Wainwright7, Eoin Brodie8, Heidi Steltzer9, Kenneth Hurst Williams10 and Susan Hubbard11, (1)University of Arizona, Department of Ecology and Evolutionary Biology, Tucson, United States, (2)University of Minnesota, Wahroonga, Australia, (3)University of Arizona, Tucson, United States, (4)World Agroforestry Centre (ICRAF), Nairobi, Kenya, (5)Fort Lewis College, Durango, CO, United States, (6)University of Arizona, Ecology and Evolutionary Biology, Tucson, AZ, United States, (7)Lawrence Berkeley National Laboratory, Department of Nuclear Science and Engineering, Berkeley, United States, (8)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States, (9)Iliff School of Theology, Denver, United States, (10)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States, (11)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences, Berkeley, CA, United States
Linking continental scale ice loss to winter biogeochemistry in north temperate lakes (Invited) (344365)
Stephen M Powers, Baylor University, Biology, Center for Reservoir and Aquatic Systems Research, Waco, TX, United States and Stephanie E Hampton, Washington State University, School of the Environment, Pullman, WA, United States
Impacts of Frost on Phosphorus Mobilization and Transport in Agricultural Landscapes with Temperate Climates (434419)
Merrin L Macrae1, Kirsten N Grant1, Fereidoun Rezanezhad2, James R Cober1, Laura L Van Eerd3, Vito Lam1 and Janina Plach4, (1)University of Waterloo, Department of Geography and Environmental Management, Waterloo, ON, Canada, (2)Ecohydrology Research Group, University of Waterloo, Earth and Environmental Sciences, Waterloo, ON, Canada, (3)University of Guelph, School of Environmental Sciences, Guelph, ON, Canada, (4)University of Waterloo, Geography and Environmental Management, Waterloo, ON, Canada
Constrained measurements of winter agricultural N-losses via leaching and soil emissions from a lysimeter facility (450464)
Claudia Wagner-Riddle, Zachary Debruyn, Jared Lapierre, Sean Jordan, Pedro Vitor Ferrari Machado and Shannon Elizabeth Brown, University of Guelph, School of Environmental Sciences, Guelph, ON, Canada
Effects of changing winter snowmelt on watershed nutrient export from forested and agricultural catchments in northern Vermont (425250)
Erin Cedar Seybold, University of Kansas, Kansas Geological Survey, Lawrence, United States, Brittany Lancellotti, University of Rhode Island, Kingston, RI, United States, Andrew W. Schroth, University of Vermont, Geography and Geosciences, Burlington, United States, Carol Adair, University of Vermont, Rubenstein School of Environment and Natural Resources, Burlington, United States, Julia N Perdrial, University of Vermont, Department of Geography & Geoscience, Burlington, United States, Beverley Coghill Wemple, University of Vermont, Geography & Geosciences; Water Resources Institute, Burlington, VT, United States, Kelsey Coates, Duquesne University, Pittsburgh, United States and Amanda Jackson-Mojica, University of Puerto Rico Mayaguez, Mayaguez, United States
Winter vs. Growing Season Climate Effects on Tree Growth and Carbon Sequestration in a Northern Hardwood Forest (395024)
Pamela H Templer1, Andrew Reinmann2, Jamie Harrison3 and Jonathan Gewirtzman3, (1)Boston University, Department of Biology, Boston, MA, United States, (2)City University New York, Advanced Science Research Center, New York, United States, (3)Boston University, Biology, Boston, MA, United States

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