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Joint Sessions

The meeting offers 31 interdisciplinary sessions cosponsored by GSA, ASA-CSSA-SSSA, and GCAGS. Topics covered in this exciting series include biofuels production, Aeolian research, emerging contaminants in water/soils/sediments, impacts of energy development on water resources, soil physics and Vadose Zone hydrology, and many more.

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To help you navigate the list of 31 sessions, use the filters at right by selecting discipline categories or sponsors from the drop-down menus at right; or you can use your browser's 'find' feature to search for keywords or convener names.
Filter list according to the Session Sponsors.
A Celebration of Soil Science, Solute Transport, and National-Scale Water-Quality Research: In Honor of Jacob Rubin
GSA Hydrogeology Division; S01 Soil Physics
David Stonestrom, Jean M. Bahr, Jack E. Barbash
Jacob Rubin (1919-2007) made seminal contributions to the science of irrigation, unsaturated flow, reactive transport, and large-scale water-quality assessments. This session focuses on disciplines advanced during his 45-year career. Original research and retrospectives are welcome.
Biofuels Production: Environmental Challenges for Soil and Water
GSA Hydrogeology Division; S06 Soil & Water Management & Conservation; S03 Soil Biology & Biochemistry; S11 Soils & Environmental Quality
William W. Simpkins, Mahdi Al-Kaisi, Mark D. Tomer
Energy security, rising oil prices, and global warming have pushed biofuels into the spotlight. We seek papers highlighting the environmental challenges and documenting impacts to soil quality and water quantity/quality of the expanding biofuels industry.
Biologically Induced Dissolution and Precipitation of Minerals in Soils and Sediments
S09 Soil Mineralogy; GSA Geobiology and Geomicrobiology Division; The Clay Minerals Society; S03 Soil Biology & Biochemistry; S05 Pedology; S07 Forest, Range & Wildland Soils; S10 Wetland Soils; Gulf Coast Association of Geological Societies
Debbie Soukup, Amy Brock
This session will explore the interactions between plant roots, microbes, and minerals that occur in various pedogenic environments and the influence of organisms on mineral weathering and formation.
Can Wetland Functions be Meaningfully Characterized from Landscape Position, Climatic Settings, and other Proxy Data?
GSA Hydrogeology Division; GSA Geology and Society Division; S10 Wetland Soils
Donald I. Siegel
Regulatory agencies routinely classify individual wetlands based on “hydrogeomorphic” map data. From these classifications, decisions are made assuming differences in wetland processes, termed functions, including water sources, geochemical processes related to nutrients, sediment retention capability, and ecological community makeup. This session poses the question of whether such approaches are scientifically meaningful.
Characterization and Interpretation of Soils and Geologic Formations with Carbonates, Gypsum, and Other Soluble Salts
GSA Quaternary Geology and Geomorphology Division; S05 Pedology; S09 Soil Mineralogy; Mineralogical Society of America
Wayne Hudnall, Thomas Reinsch
Division S05 Pedology will host a session on gypsum and other soluble salts. The unique properties of gypsum and other salt minerals in soils require a rethinking of how such soils are evaluated, quantified, and managed.
Complexity and Scale in the Critical Zone
A03 Agroclimatology & Agronomic Modeling; S05 Pedology; GSA Geoinformatics Division; S01 Soil Physics
Daniel Gimenez, Jonathan Phillips, Adolfo Posadas
We seek contributions on modeling, statistical data analysis, and field interpretation of spatial and/or temporal patterns of variation of material and processes in the Critical Zone at any scale. Linkages among scales are particularly welcome.
Connecting the Dots: Linking Energy and Mass Balance to Soil Morphologic and Stratigraphic Processes
GSA Hydrogeology Division; GSA Quaternary Geology and Geomorphology Division; S01 Soil Physics; S05 Pedology
Eric McDonald, Michael Young
Near-surface movement of energy and mass are significantly connected to pedologic and geomorphic processes, and vice versa. This session seeks to highlight the interactions between soil physics, pedology, Quaternary geology, and near-surface hydrogeology.
Desert Pavements and Vesicular A Horizons (Posters)
GSA Quaternary Geology and Geomorphology Division; S05 Pedology
Robert C. Graham, Eric V. McDonald, Leslie D. McFadden
Desert pavements and vesicular soil horizons are important surficial features in deserts worldwide. Various aspects of these features will be explored in this session, including their formation, distribution, function, quantification, and application to geomorphic research.
Developments in Aeolian Research: Bridging the Interface between Soil, Sediment, and Atmosphere
GSA Quaternary Geology and Geomorphology Division; S06 Soil & Water Management & Conservation; International Society of Aeolian Research (ISAR); S05 Pedology
Thomas E. Gill, Ted M. Zobeck
Aeolian research – investigating the detachment, transport, and deposition of sediments and soils by wind- is where soil scientists, geologists, and others meet.
Digital Detection, Interpretation, and Mapping of Soil, Sediments and Bedrock
GSA Geoinformatics Division; S05 Pedology; S09 Soil Mineralogy
John M. Galbraith, Jon Hempel
GIS spatial analysis, landscape analysis and modeling, remote sensing and mapping of important soil and geologic properties such as metals and minerals, sources of sand and gravel, geothermal sources, elevation change due to natural adjustments by nature.
Emerging Contaminants in Water, Soils, and Sediments: Sources, Pathways, Interactions, and Ecological Impacts
GSA Hydrogeology Division; National Ground Water Association–Association of Ground Water Scientists and Engineers; A05 Environmental Quality; Gulf Coast Association of Geological Societies
Brian G. Katz, Patrick J. Phillips
Recent studies have identified the widespread occurrence of emerging contaminants in surface water and groundwater, and their effects on aquatic biota. This interdisciplinary session will highlight research on sources, pathways, fate, and transport of emerging contaminants; interactions with soils and sediments; and impacts to ecological systems.
Energy from Renewables Using Soil Microbes and Microbial Processes
GSA Geobiology and Geomicrobiology Division; S03 Soil Biology & Biochemistry
Mary Ann Bruns, Shiping Deng
This session explores approaches to capture clean energy from microbial activity, including sediments and biofuel cells as an alternative to fossil fuel use; using soil microorganism to enhance enzymatic conversion of cellulose based materials and other new bioenergy related work.
Gains and Losses: Soil Nutrients and Moisture in Aridic Soils Under Changing Climates
GSA Quaternary Geology and Geomorphology Division; S06 Soil & Water Management & Conservation; S05 Pedology
Marith Reheis, Mark Miller, Ted M. Zobeck
Nutrients and moisture in aridic soils are affected by complex interactions among parent material, geomorphic setting, biologic activity, wind erosion and dust inputs, precipitation regime, and land use. All of these, except parent material and geomorphic setting, will be affected by global change.
Hydrogeomorphology and Hydropedology: Emerging Disciplines that Embrace Earth and Soil Sciences
GSA Quaternary Geology and Geomorphology Division; S01 Soil Physics; S05 Pedology; S06 Soil & Water Management & Conservation
Roy C. Sidle, David R. Montgomery, Henry Lin
The emerging interdisciplinary fields of hydrogeomorphology and hydropedology focus on the interactions and linkages of hydrologic processes with landforms and pedology, respectively. These emerging disciplines call for integrated research and applications.
Hydrological Responses to Changing Climate: Implications for Agriculture and Ecosystems
S06 Soil & Water Management & Conservation; S11 Soils & Environmental Quality; GSA Hydrogeology Division
Mark D. Tomer, William W. Simpkins
Climate warming is having impacts on hydrology, including the dynamics and extent of floods and drought. We seek papers evaluating how hydrologic systems are changing in differing environments, and on implications for agriculture and ecosystems.
Impact on Agriculture of the Declining Ogallala Aquifer
A04 Extension Education; GSA Hydrogeology Division
Hans Kok, Ken Rainwater
Irrigation withdrawals from the Ogallala Aquifer, which extends from South Dakota to the Texas Panhandle, have diminished groundwater storage. Conservation practices are challenged by varying aquifer management approaches and fluctuations in crop values.
Impacts of Energy Development on Water Resources
GSA Hydrogeology Division; A05 Environmental Quality; Gulf Coast Association of Geological Societies
Richard W. Healy, James K. Otton
We seek papers addressing water quality and quantity issues associated with development of alternative energy sources such as biofuels, oil shale, and coal gasification, and traditional sources such as oil, natural gas, and coal.
Land Subsidence Attributable to Subsurface Fluid Extraction in Coastal Lowlands: Contributions to Relative Sea-Level Rise
GSA Hydrogeology Division; GSA Structural Geology and Tectonics Division; National Ground Water Association, Association of Ground Water Scientists and Engineers; Harris-Galveston Subsidence District; USGS Subsidence Interest Group; Gulf Coast Association
Devin L. Galloway, Stanley A. Leake, Keith R. Prince, Thomas J. Burbey
Anthropogenic aquifer-system compaction and land subsidence caused by subsurface fluid extraction will be explored in terms of spatial and temporal characteristics vis-à-vis eustasy and other isostatic changes contributing to relative sea-level rise.
Land Use and Short-Term Erosion Processes
GSA Quaternary Geology and Geomorphology Division; S05 Pedology; S06 Soil & Water Management & Conservation; A02 Military Land Use & Management
Gerald Matisoff, Peter Whiting, K.G. Karthikeyan
This session will report research on erosion under different land use practices, on spatial delineation of sediment source areas and on techniques to effectively implement remedial and protective measures.
Natural Zeolite Utilization in Agriculture, Environmental Science, and Industry: Characterization, Properties, and Applications
Mineralogical Society of America; S02 Soil Chemistry; S09 Soil Mineralogy; S11 Soils & Environmental Quality
Robert S. Bowman, Philip S. Neuhoff
The high reactivity and unique crystallography of natural zeolites lead to their use in environmental remediation, industry, and agriculture. This session highlights recent research advances in the characterization of natural zeolites, their properties, and applications.
Organic Contaminants: The Soil and Sediment Reservoir
S11 Soils & Environmental Quality; S02 Soil Chemistry; S03 Soil Biology & Biochemistry; GSA Geobiology and Geomicrobiology Division; GSA Geology and Health Division
Joseph J. Pignatello, Hui Li, Thomas Moorman
A broad range of biologically active organic pollutants enter soil via agricultural and urban activities. This session will emphasize the role of soils and sediments as sources, sinks, and catalysts for reactions involving these compounds.
Role of Metals, Minerals, and Microbes in Urban Development and Maintenance
GSA Geobiology and Geomicrobiology Division; S09 Soil Mineralogy; GSA Engineering Geology Division; S05 Pedology
Stuart Birnbaum, Michael A. Wilson, Paul Santi
Urban land use is affected by the mineral and biological components of soil. Physical, chemical and biological problems undermine city infrastructure and affect human health. This symposium explores problems, processes, and solutions.
Scale and Accuracy in Estimating Water Balance
GSA Hydrogeology Division; A03 Agroclimatology & Agronomic Modeling
Robert Lascano, Steve Evett, Dave Stannard
Agronomists, hydrogeologists, and soil scientists are interested in modeling the water balance at scales ranging from a field to a whole catchment. This session will include discussions of evapotranspiration and water-balance computations of cropped surfaces.
Scaling Methods in Hydrological Research
GSA Hydrogeology Division; S01 Soil Physics
Jianting Zhu, Michael Young
This session features contributions on theoretical and applied research on upscaling and downscaling of a wide range of hydrogeological and soil processes.
Soil Physics and Vadose Zone Hydrology: Our Future Contributions
GSA Hydrogeology Division; S01 Soil Physics; S05 Pedology
Scott W. Tyler, J.M. Hendrix
In the spirit of the joint GSA-SSSA meeting, we encourage presentations demonstrating emerging advances, challenges, and opportunities for the future in the study of the region between the land surface and the water table.
Soil Respiration: From Human to Geologic Time Scales
S03 Soil Biology & Biochemistry; S05 Pedology; S07 Forest, Range & Wildland Soils; S09 Soil Mineralogy; The Clay Minerals Society
Paul A. Schroeder, Alan J. Franzluebbers
Controlling factors on carbon dioxide efflux from the land surface to the atmosphere are explored on diurnal, annual, millennial, and deep time scales. How does soil respiration vary with lithology, climate, time, space, and management?
Soils through Time: Critical Zone Studies of Processes and Their Effects
GSA Quaternary Geology and Geomorphology Division; Geochemical Society; S05 Pedology
Marjorie S. Schulz, David Stonestrom, Daniel D. Richter
This session will focus on processes in the critical zone over time scales that range from millennia to annual. We encourage submission of papers that explore interactions involving rock, soil, water, air, and living organisms.
Subsurface Fate and Transport of Agricultural Contaminants
GSA Hydrogeology Division; GSA Geology and Society Division; S02 Soil Chemistry; S06 Soil & Water Management & Conservation; S11 Soils & Environmental Quality
Christopher Green, Thomas Harter, Jan Fleckenstein
With increasing demands on the world’s limited arable lands, managing the quality of their water resources becomes more challenging and important. This session focuses on the subsurface processes that control water quality in agricultural areas.
U.S. Agriculture’s Role in Soil Carbon Sequestration and Greenhouse Gas Mitigation (GRACEnet)
GSA Geobiology and Geomicrobiology Divison; S03 Soil Biology & Biochemistry; S06 Soil & Water Management & Conservation
Stuart Birnbaum, Ronald F. Follett, Ronald F. Turco
There is increasing interest among many groups for using agricultural lands to sequester C and reduce GHG emission. Information is being developed on management practices to enhance soil C sequestration and mitigate GHG emissions.
Urban Geochemistry and Associated Human and Ecological Health Issues
S11 Soils & Environmental Quality; S02 Soil Chemistry; GSA Geology and Health Division
Nicholas Basta, Dibyendu Sarkar
Urbanization has taken a toll on ecological and human health. Session topics include geochemical mapping; risk assessment of inorganic and organic soil contaminants; clean-up; and scientific and regulatory challenges regarding urban contamination.
Variably Saturated Flow in Soil and Rock: What's the Same, What's Different?
S01 Soil Physics; S05 Pedology; GSA Hydrogeology Division
John Nimmo, Boris A. Faybishenko, Henry Lin
Flow that is sometimes unsaturated occurs in diverse media of the critical zone. This session emphasizes studies that involve both soil and rock, or one of these with interpretations relevant to the other.




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