university of georgia college of agriculture and environmental sciences department of crop and soil...
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University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Environmental Sciences
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Areas of Focus
• Bio-micrometeorology– Measurements and modeling– Vegetation-soil-atmosphere exchange of gases– Carbon cycling of natural and managed ecosystems
• Molecular Environmental Sciences• Nutrient Management• Pedology• Remediation• Soil Biology and Biochemistry• Waste Management• Water Resources 1Heisenberg’s second
question for God
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Areas of Focus
• Bio-micrometeorology• Molecular Environmental Sciences
– Fundamental understanding of processes– Cycling, transport, and bioavailability of contaminants– Molecular biological tools provide new insights
• Nutrient Management• Pedology• Remediation• Soil Biology and Biochemistry• Waste Management• Water Resources
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Areas of Focus
• Bio-micrometeorology• Molecular Environmental Sciences• Nutrient Management
– Biological and chemical pathways of nutrient cycling– Remote sensing and mapping of soil spatial variability– Ammonia volatilization from urea and manures– Improved methods of determining lime requirements
• Pedology• Remediation• Soil Biology and Biochemistry• Waste Management• Water Resources
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Areas of Focus
• Bio-micrometeorology• Molecular Environmental Sciences• Nutrient Management• Pedology
– Better interpretation through better understanding of genesis– More comprehensive soil hydraulic properties– Redoximophic features and depth/duration of saturation
• Remediation• Soil Biology and Biochemistry• Waste Management• Water Resources
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Areas of Focus
• Bio-micrometeorology• Molecular Environmental Sciences• Nutrient Management• Pedology• Remediation
– Iron & metal sulfides remediation of halogenated solvents– Wetland macrophytes sorption of mercury, selenium, & arsenic– Sorption of TNT on humic-clay mineral complexes
• Soil Biology and Biochemistry• Waste Management• Water Resources
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Areas of Focus
• Bio-micrometeorology• Molecular Environmental Sciences• Nutrient Management• Pedology• Remediation• Soil Biology and Biochemistry
– Biological activity effect on soil structure and function– Earthworm effect on turnover of nutrients and C– Use of isotopes, NMR spectroscopy, & DNA methods
• Waste Management• Water Resources
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Areas of Focus
• Bio-micrometeorology• Molecular Environmental Sciences• Nutrient Management• Pedology• Remediation• Soil Biology and Biochemistry• Waste Management
– Industrial by-products: fly ash, gypsum, pulp, sewage sludge– Poultry litter– On-site wastewater systems
• Water Resources
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Areas of Focus
• Bio-micrometeorology• Molecular Environmental Sciences• Nutrient Management• Pedology• Remediation• Soil Biology and Biochemistry• Waste Management• Water Resources
– Water quality and water quantity– Phosphorus, sediment, and bacteria– Conservation methods for irrigated crops & turfgrass
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Success Stories
• Role that manure P plays in water quality– US EPA requirement
for P-based NMPs– State listing of 5
reservoirs for P TMDLs– Impact of cattle in
streams– Watershed-scale
transport models
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Success Stories
• Impact of irrigation on stream flow in SW Ga– Hydrologic models,
irrigation monitoring, & GIS to quantify withdrawals
– Assisted in development & implementation of Flint River Basin Plan
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Success Stories
• Basic research on earthworm invasion biology– Geographic extent of
invasion– Mechanisms and
pathways– Impacts on soil
processes– Mitigation possibilities
for native species
Invasive Amynthas agrestis alters soils in S. Appalachians
Invasive Dendrobaena octaedra alters soils in Minnesota (Hale et al 2005)
O-layer mixed into A-horizon
uninvaded invaded soil soil
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Success Stories
• Bacterial source tracking– Identification of
sources of bacteria in coastal waters
– Interaction with sediment
– Targeted sampling methods
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Success Stories
• Yucca Mountain plutonium chemistry– MES– Detailed chemical
speciation of contaminants in complex samples
– Understanding mineral phases controlling contaminant partitioning and speciation dynamics at mineral surfaces
Duff et al., (1999 a&b); Duff et al., (2000; 2001)Powell et al. (2006)
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Success Stories
• Carbon flux super site at SREL
University of GeorgiaCollege of Agriculture and Environmental Sciences • Department of Crop and Soil Sciences
www.cropsoil.uga.edu
Challenges
• Net loss of 2 tenure-track research positions– Soil fertility at Tifton– Soil chemistry at Griffin
• New positions needed– GIS at Athens (research & extension)– Urban land management at Griffin (research &
teaching)– Soil fertility & plant nutrition at Tifton (research)