Oral Session 3: Biogeochemistry I: Litter and Decomposition.
Presiding: J Dilustro
Monday, August 2, 8:00 AM to 11:30 AM, Meeting Room A 107.
8:00 AM Allison, Steven*,1, 1 Department of Biological Sciences, Stanford, CA, USA Brown ground: A soil carbon analog for the Green World.
8:20 AM Townsend, Alan*,, Cleveland, Cory, Nutrient controls over litter decomposition in a lowland tropical rainforest.
8:40 AM Cleveland, Cory *,1, Nemergut, Diana2, Townsend, Alan 1, Schmidt, Steve2, 1 INSTAAR, Boulder, CO, USA2 Department of Ecology & Evolutionary Biology, Boulder, CO Dissolved organic carbon decomposition and the soil microbial community: Are molecular techniques the key to the black box?
9:00 AM Uselman, Shauna*,1, Qualls, Robert1, Kluck, Juliane1, 1 University of Nevada-Reno, Reno, NV, USA Relative importance of root litter as an input of soluble organic C to forest nutrient cycling.
9:20 AM Hobbie, Sarah*,1, Reich, Peter1, Oleksyn, Jacek1, 2, Ogdahl, Megan1, Zytkowiak, Roma2, Hale, Cynthia1, Karolewski, Piotr2, 1 University of Minnesota, Saint Paul, MN, USA2 Polish Academy of Sciences, Kornik, Poland The effects of tree species on decomposition: Interactions between litter chemistry, earthworms and microbes.
9:40 AM Break.
9:50 AM Lensing, Janet*,1, Wise, David1, 1 University of Kentucky, Lexington, KY Impacts of altered precipitation on leaf-litter decomposition and forest-floor arthropods.
10:10 AM Eviner, Valerie*,1, Vaughn, Charles2, 1 Institute of Ecosystem Studies, Millbrook, NY, USA2 Hopland Research and Extension Center, Hopland, CA, USA Seedling thinning contributes as much to internal N cycling as does decomposition of senesced litter.
10:30 AM Wood, Tana*,1, Lawrence, Deborah1, Clark, Deborah2, 1 Department of Environmental Science, Charlottesville, VA, USA2 University of Missouri, St. Louis, MO The influence of litter production on P cycling in a wet tropical rain forest.
10:50 AM Sirulnik, Abby*,1, Meixner, Thomas*,1, Fenn, Mark*,2, Allen, Michael*,1, Allen, Edith*,1, 1 University of California, Riverside, CA, United States2 USDA Forest Service, Riverside, CA, United States Nitrogen deposition alters soil and litter nutrient cycling in exotic annual grasslands of southern California.
11:10 AM Fernandez, Daniel*,1, 2, Neff, Jason1, 2, Belnap, Jayne 3, Reynolds, Richard1, 1 US Geological Survey, Denver, CO, United States2 University of Coloado, Boulder, CO, United States3 US Geological Survey, Moab, UT, United States Decomposition in a desert environment: Abiotic regulators and thresholds.
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