Session: Biogeochemistry: Biogeo Patterns Along Environmental Gradients I (97th ESA Annual Meeting (August 5 -- 10, 2012))

8:00 AM

Improving estimates of in-stream nitrogen transformations by applying spatiotemporal variability in a semi-arid agricultural stream
Leif G. Moon-Nielsen, Washington State University; Cailin Huyck Orr, Washington State University

8:20 AM

COS 126-2

Non-linear nitrous oxide (N₂O) response to N fertilizer during switchgrass establishment
Leilei Ruan, Michigan State University; G. Philip Roberston, Michigan State University

8:40 AM

COS 126-3

Biodiversity of nitrogen fixers facilitate tropical forest carbon recovery
Sarah A. Batterman, Princeton University; Jefferson Hall, Smithsonian Tropical Research Institute; Michiel van Breugel, Smithsonian Tropical Research Institution; Lars Hedin, Princeton University

9:00 AM

COS 126-4

Hydrological and land use controls on the export of carbon, nitrogen, and phosphorus from two contrasting Midwestern US watersheds
Lesley B. Knoll, Lacawac Sanctuary Field Station; Michael J. Vanni, Miami University; William H. Renwick, Miami University; Elizabeth K. Dittman, North Carolina State University

9:20 AM

COS 126-5

Determining ecological indicators of anthropogenic nitrate deposition in a desert ecosystem using stable isotopes of nitrogen and oxygen
Michael D. Bell, University of California, Irvine; James O. Sickman, UC Riverside; Andrzej Bytnerowicz, US Forest Service; Edith B. Allen, University of California, Riverside

9:40 AM

COS 126-

Break

9:50 AM

COS 126-6

Vegetation controls soil CO₂ flux in a complex moist Appalachian Watershed
Daniel L. Welsch, Canaan Valley Institute; Sarah Deacon, Canaan Valley Institute; Joshua T. Saville, Canaan Valley Institute

10:10 AM

COS 126-7

Rock type and topography drive soil phosphorus status in the Luquillo Mountains of Puerto Rico
Stephen Porder, Brown University; Susanna Mage, Brown University

10:30 AM

COS 126-8

Special - The Savanna Patterns of Energy and Carbon Integrated Across the Landscape Campaign
Jason Beringer, Monash University; L. B. Hutley, Charles Darwin University; J. Hacker, Flinders University; R. Leuning, CSIRO; Stefan Arndt, University of Melbourne; R. Amiri, Monash University; L. Bannehr, Hochschule Anhalt; Lucas A. Cernusak, Charles Darwin University; S. Grover, Charles Darwin University; C. Hensley, Monash University; D. J. Hocking, Monash University; P. R. Isaac, Monash University; H. Jamali, University of Melbourne; K. Kanniah, University Technology Malaysia; S. Livesley, University of Melbourne; B. Neininger, Zurich University of Applied Sciences; K. T. Paw U, University of California; W. B. Sea, CSIRO; D. Straten, Hochschule Anhalt; N. J. Tapper, Monash University; R. A. Weinmann, Charles Darwin University; S. Wood, Monash University; S. J. Zegelin, CSIRO

10:50 AM

COS 126-9

Land cover interacts with hydrologic variability to determine N export from urban watersheds of metropolitan Sacramento, CA
James B. McConaghie, University of California, Davis; Weiqi Zhou, University of California, Davis; Mary L. Cadenasso, University of California, Davis

11:10 AM

COS 126-10

Nitrogen cycling “hotspots”: An approach for watershed scale assessments
Peter Baas, University of Georgia; Jacqueline E. Mohan, University of Georgia; Daniel Markewitz, University of Georgia; Jennifer D. Knoepp, Coweeta Hydrologic Laboratory

COS 126 - Biogeochemistry: Biogeo Patterns Along Environmental Gradients I