B43C:
Characterizing Spatial and Temporal Variability of Hydrological and Biogeochemical Processes Across Scales I Posters

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Session ID#: 32679

Session Description:
Biogeochemical processes are often spatially discrete (hotspots) and temporally restricted (hot moments) due to variability in controlling factors like hydrologic fluxes, lithologic characteristics, microbial composition, vegetation, etc. Although this scale-dependence of biogeochemical processes accounts for a high percentage of nutrient cycling, the ability to identify and incorporate them into reactive transport models remains a significant challenge. This session invites contributions that identify spatial and temporal patterns in biogeochemical variables, implement such variability in reactive transport models, and/or document the extent that hot spots/moments influence larger-scale system functioning. This session will focus on exchanging ideas on (1) new techniques for identifying biogeochemical hotspots and hot moments across scales, (2) understanding the governing controls such as, soil-landscape features, flux-inputs, vegetation characteristics that leads to this emergent behavior, (3) incorporating this spatio-temporal variability in models and/or designing scale-aware parameterizations, and (4) quantifying the significance of incorporating this emergent behavior in reactive transport models.
Primary Convener:  Bhavna Arora, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States
Conveners:  James Stegen, Pacific Northwest National Laboratory, Richland, WA, United States, Haruko M Wainwright, Lawrence Berkeley National Laboratory, Berkeley, United States and Joel C Rowland, Los Alamos National Laboratory, Earth and Environmental Sciences, Los Alamos, NM, United States
Chairs:  James Stegen, Pacific Northwest National Laboratory, Richland, WA, United States, Haruko M Wainwright, Lawrence Berkeley National Laboratory, Berkeley, United States, Joel C Rowland, Los Alamos National Laboratory, Earth and Environmental Sciences, Los Alamos, NM, United States and Bhavna Arora, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States
OSPA Liaison:  Joel C Rowland, Los Alamos National Laboratory, Earth and Environmental Sciences, Los Alamos, NM, United States

Cross-Listed:
  • H - Hydrology
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]
0442 Estuarine and nearshore processes [BIOGEOSCIENCES]
1839 Hydrologic scaling [HYDROLOGY]

Abstracts Submitted to this Session:

Sedimentary profile of polychlorinated biphenyls in the East China Sea: implications for the recent rising emissions from the unintentionally industrial productions (211377)
Tiange Zhao and Zhigang Guo, Fudan University, Shanghai, China
Large-scale modeling on the fate and transport of polycyclic aromatic hydrocarbons (PAHs) in multimedia over China  (222513)
Yanping Huang1, Min Liu2, Yoshihide Wada3,4, Xiaogang He5 and Xun Sun1,6, (1)East China Normal University, Shanghai, China, (2)East China Normal University, Key Laboratory of Geographic Information Sciences, Ministry of Education, School of Geographic Sciences, Shanghai, China, (3)IIASA International Institute for Applied Systems Analysis, Laxenburg, Austria, (4)NASA Goddard Institute for Space Studies, New York, NY, United States, (5)Princeton University, Civil and Environmental Engineering, Princeton, NJ, United States, (6)Columbia University of New York, Palisades, NY, United States
Spatial Snow Surface Roughness across Two Resolutions (236861)
Eric Sam Thomas, University of Colorado Denver, Denver, CO, United States and Steven R Fassnacht, Colorado State University, Watershed Science, Fort Collins, United States
Dissolved Nutrient Removal in River Networks: When and Where (235770)
Sheng Ye and Qihua Ran, Zhejiang University, Hangzhou, China
Identifying microbially mediated transformations of DOC across season and tide from simultaneous changes in whole community gene expression and in mass spectra generated by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FTICR-MS) (289685)
Ford Ballantyne1, Mary Ann Moran1, Patricia M Medeiros2, Chao Song1, William B Whitman3, Benjamin Washington4, Mengyun Yu1 and Juhyung Lee5, (1)University of Georgia, Athens, GA, United States, (2)University of Georgia, Department of Marine Sciences, Athens, GA, United States, (3)St. Andrd-WvRdern, Austria, (4)University of Georgia, Athens, United States, (5)Stanford University, Hopkins Marine Station, Pacific Grove, CA, United States
Diverse Responses of Belowground Internal Nitrogen Cycling to Increasing Aridity (236159)
Dan Kou1, Yunfeng Peng1, Guanqin Wang1, Jinzhi Ding1, Yongliang Chen1, Guibiao Yang1, Kai Fang1, Li Liu1, Beibei Zhang1, Christoph Müller2, Jinbo Zhang3 and Yuanhe Yang4, (1)IB Institute of Botany, Chinese Academy of Sciences, Beijing, China, (2)University of Giessen, Giessen, Germany, (3)Nanjing Normal University, Nanjing, China, (4)Chinese Academy of Sciences, Beijing, China
Nitrogen Fertilization Elevated Spatial Heterogeneity of Soil Microbial Biomass Carbon and Nitrogen in Switchgrass and Gamagrass Croplands (240820)
Jianwei Li1, Siyang Jian1, Chunlan Guo2, Dr. Dafeng Hui, Ph.D.1, Qi Deng1, Chih-Li Yu1, Kudjo E Dzantor1 and Chad Lane3, (1)Tennessee State University, Nashville, TN, United States, (2)Jiangxi Provincial Key Laboratory for Bamboo Germplasm Resources and Utilization, Forestry College, Jiangxi Agricultural University, Nanchang, Jiangxi, China, (3)University of North Carolina at Wilmington, Earth and Ocean Sciences, Wilmington, NC, United States
Effects of Unsaturated Microtopography on Nitrate Concentrations in Tundra Ecosystems: Examples from Polygonal Terrain and Degraded Peat Plateaus (233207)
Jeffrey M Heikoop1, Carli A Arendt1, Brent D Newman2, Lauren Charsley-Groffman3, George Perkins4, Cathy Jean Wilson3 and Stan Wullschleger5, (1)Los Alamos National Laboratory, Earth and Environmental Sciences, Los Alamos, NM, United States, (2)Los Alamos National Laboratory, Earth and Environmental Sciences Division, Los Alamos, United States, (3)Los Alamos National Laboratory, Los Alamos, NM, United States, (4)Los Alamos National Laboratory, Los Alamos, United States, (5)Oak Ridge National Laboratory, Environmental Sciences Division and Climate Change Science Institute, Oak Ridge, United States
Snow Melt Chemistry: Major and Trace Cation Contributions to Downstream Systems from the Llewellyn and Matthes Glaciers, Juneau Icefield (261583)
Kelcy Huston, University of Minnesota, Minneapolis, MN, United States, Zachary Gianotti, Santa Clara University, Santa Clara, CA, United States, Sarah K Fortner, Carleton College, Science Education Resource Center, Northfield, MN, United States, Chelly John, Columbus Technical College, Columbus, GA, United States, Natalie Marie Kehrwald, USGS-GECSC, Geosciences and Environmental Change Science Center, Denver, United States and Joshua Kennedy, South Dakota State University, Brookings, SD, United States
HIGH-FREQUENCY MEASUREMENTS OF TREE METHANE FLUXES INDICATE A PRIMARY SOUCE INSIDE TREE TISSUE (289187)
Paul Brewer, Smithsonian Environmental Research Center Edgewater, Edgewater, MD, United States and Patrick Megonigal, Smithsonian Environmental Research Center, Edgewater, United States
Quantifying Hydroperiod, Fire and Nutrient Effects on the Composition of Plant Communities in Marl Prairie of the Everglades: a Joint Probability Method Based Model (295359)
Lu Zhai, University of Miami, Miami, FL, United States

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