Oral Session 110: Biogeochemistry VII: Soil I and Nutrient Cycling I.
Presiding: K Lajtha
Thursday, August 5, 1:30 PM to 5:00 PM, Meeting Room A 106.
1:30 PM McGroddy, Megan*,1, Baisden, William2, Hedin, Lars 1, 1 Princeton University, Princeton, NJUSA2 Landcare Research, Palmerston North, New Zealand Nutrient losses from undisturbed forests in New Zealand: Patterns of N and P loss along a gradient of parent material.
1:50 PM Baisden, W.*,1, McGroddy, Megan2, Hedin, Lars2, 1 Landcare Research, Palmerston North, New Zealand2 Princeton University, Princeton, NJ Nutrient losses from undisturbed forests in New Zealand: C, N and P loss as a function of climate and soil properties.
2:10 PM Neff, Jason1, Belnap, Jayne2, Sanford, Robert 3, Miller, Mark2, Reynolds, Richard4, 1 University of Colorado, Boulder, CO, USA2 US Geological Survey, Moab, UT, USA3 Denver University, Denver, CO, USA4 US Geological Survey, Denver, CO, USA Plant stoichiometric response to landscape-scale variation in bedrock geochemistry: Interactions of P, Ca and Fe in a semi-arid environment.
2:30 PM Titiz, Beyhan*,1, Sanford Jr., Robert*,1, 1 University of Denver, Denver, CO Soil phosphorus patterns from the continental divide to sea level in a Costa Rican rainforest.
2:50 PM Schaeffer, Sean*,1, Ziegler, Susan1, Evans, R. Dave2, 1 University of Arkansas Stable Isotope Laboratory, Fayetteville, AR, USA2 School of Biological Sciences, Pullman, WA, USA Linking microbial soil carbon and nitrogen cycling in a Mojave Desert ecosystem under elevated atmospheric carbon dioxide.
3:10 PM Break.
3:20 PM Miller, Amy*,1, Schimel, Joshua1, Meixner, Tom2, Sickman, James3, Melack, John1, 1 University of California, Santa Barbara, CA, USA2 University of California, Riverside, CA, USA3 University of New Orleans, New Orleans, LA, USA Episodic rewetting enhances carbon and nitrogen release from seasonally arid soils.
3:40 PM Lohse, Kathleen1, 1 University of California, Berkeley, Berkeley, CA, 94720 Consequences of nitrogen additions for base cation losses and aluminum mobility in tropical forests of contrasting soil age.
4:00 PM Lajtha, Kate*,1, Crow, Susan1, Yano, Yuriko2, Kaushal, Sujay3, Sulzman, Elizabeth1, Spears, Julie1, 1 Oregon State University, Corvallis, OR2 Ecosystems Center, Woods Hole, MA3 Institute of Ecosystem Studies, Millbrook, NY Detrital controls on soil organic matter dynamics and soil solution chemistry: An experimental approach.
4:20 PM Groffman, Peter1, 1 Institute of Ecosystem Studies, Millbrook, NY, USA Microbial carbon and nitrogen cycle process response to calcium additions in a northern hardwood forest.
4:40 PM Bern, Carleton*,1, 2, Townsend, Alan1, 2, Farmer, G.2, 1 Institute for Arctic and Alpine Research, Boulder, CO, USA2 University of Colorado, Boulder, CO, USA Dominance of parent-material strontium in a tropical forest on highly weathered soils.
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