COS 5
Biogeochemistry: New Paradigms In Biogeochem Cycling I

Monday, August 5, 2013: 1:30 PM-5:00 PM
M100IB, Minneapolis Convention Center
1:30 PM
 Role of Ca-ox in controlling Ca/Sr discrimination and 44Ca/40Ca fractionation of calcium
Jenny M. Dauer, Michigan State University; Thomas D. Bullen, U.S. Geological Survey; Steven Perakis, US Geological Survey
1:50 PM
 The sink for nitrous oxide in soils
William Schlesinger, Cary Institute of Ecosystem Studies
2:10 PM Cancelled
 Using soil physical properties to predict C and N cycling in a northern hardwood forest
Linda H. Pardo, USDA Forest Service; Mark B. Green, Plymouth State University; Scott W. Bailey, USFS
2:30 PM
 Changes in pedogenic thresholds and soil process domains in long-term soil development
Peter M. Vitousek, Stanford University; Oliver A. Chadwick, University of California
3:10 PM
3:20 PM
 Predictability of the terrestrial carbon cycle
Yiqi Luo, University of Oklahoma; Trevor Keeman, Harvard University; Matthew Smith, Microsoft Research
3:40 PM
 Time scales of coupled and de-coupled biogeochemical cycles
Jim Heffernan, Duke University; Alison Appling, Duke University
4:00 PM
 Long-term controls on ecosystem calcium: Nitrogen accumulation versus bedrock weathering
Justin Hynicka, Oregon State University; Julie Pett-Ridge, Oregon State University; Steven Perakis, US Geological Survey
4:20 PM
 Patterns and rates of biological nitrogen fixation during secondary succession in a lowland tropical rain forest
Benjamin W. Sullivan, University of Montana; Megan K. Nasto, University of Montana; Sasha C. Reed, USGS; Robin L. Chazdon, University of Connecticut; Cory C. Cleveland, University of Montana
4:40 PM
 Anoxic microsites in soils: regulating factors, impacts on greenhouse gas fluxes and role in nitrogen cycling
Paul E. Brewer, Colorado State University; Joe C. von Fischer, Colorado State University