H124
Stable Isotopes in the Critical Zone: Methods, Applications, and Process Interpretations

Session ID#: 72527

Session Description:
Stable isotopes are powerful tools for tracing fluxes of water, carbon, and nutrients. They are increasingly used in various disciplines to better understand processes occurring in the soil-plant-atmosphere continuum. Furthermore, new methodological and technological developments have facilitated tracing isotopes at much finer scales, but also across larger domains. By enabling the tracing of exchanges across distinct landscape pools, stable isotopes support new interdisciplinary perspectives on critical zone processes. This session aims to address the current state of the art for methods, applications, and process interpretations using stable isotopes in the critical zone. Studies that cross disciplinary boundaries and reveal new process understanding are especially welcome. This session also encourages contributions that celebrate the AGU's Centennial, including reviews of historical data and the evolution of stable isotope tools within the critical zone, as well contributions that discuss the future direction and needs of the critical zone stable isotope community.
Index Terms:

1041 Stable isotope geochemistry [GEOCHEMISTRY]
1813 Eco-hydrology [HYDROLOGY]


Primary Convener:  Stephen P Good, Oregon State University, Department of Biological & Ecological Engineering, Corvallis, OR, United States
Conveners:  Natalie Orlowski, University of Freiburg, Freiberg, Germany, Matthias Sprenger, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, Spain and Scott T Allen, ETH Swiss Federal Institute of Technology Zurich, Department of Environmental Systems Science, Zurich, Switzerland
Primary Liaison:  Stephen P Good, Oregon State University, Department of Biological & Ecological Engineering, Corvallis, OR, United States
 
Unravelling the Hydrology of a Tropical Critical Zone at the Top of the Andes (Invited) (548198)
Giovanny Mosquera, Universidad de Cuenca, Departamento de Recursos Hídricos y Ciencias Ambientales & Facultad de Ingeniería, Cuenca, Ecuador
 
Reconsidering ecohydrologic separation (553770)
Matthias Sprenger, North Carolina State University Raleigh, Raleigh, NC, United States and Scott T Allen, ETH Swiss Federal Institute of Technology Zurich, Department of Environmental Systems Science, Zurich, Switzerland
 
Using Stable Isotopes to Understand Ecosystem Change at the Continental Scale (555281)
Samantha Rose Weintraub, Christopher Florian, Hongyan Luo, Stephanie Parker and Natchaya Pingintha Durden, National Ecological Observatory Network, Battelle, Boulder, CO, United States
 
Water Sourcing Strategies of Highly Resilient Vegetation in Desert Soils: Stable Isotope Analysis of a Northern Chihuahuan Desert Ecosystem (568857)
Hayden Thompson1, Hugo Alberto Gutierrez-Jurado1, Lin Ma2, Lixin Jin1 and Anthony Darrouzet-Nardi3, (1)University of Texas at El Paso, Geological Sciences, El Paso, TX, United States, (2)University of Texas, El Paso, Geological Sciences, El Paso, TX, United States, (3)University of Texas at El Paso, Biological Sciences, El Paso, TX, United States
 
Isotope hydrology of a semi-arid, snow-melt dominated watershed of the Inland Pacific Northwest: the Palouse River basin (571014)
Christian Guzman, University of Massachusetts Amherst, Civil and Environmental Engineering, Amherst, MA, United States; Washington State University, Civil and Environmental Engineering, Pullman, WA, United States, Ricardo Sanchez-Murillo, National University, Stable Isotopes Research Group and Water Resources Management Laboratory, Heredia, Costa Rica, Erin S Brooks, University of Idaho, Department of Biological and Agricultural Engineering, Moscow, ID, United States and Jan Boll, Washington State University, Pullman, WA, United States
 
Dynamic of Boron in Forest Ecosystems Traced by its Stable Isotopes: A Modeling Approach (574916)
Benjamin Chetelat, Tianjin University, Tianjin, China and Jerome Gaillardet, Institute de Physique d Globe Paris, Paris, France
 
Using isotopes to understand the evolution of water ages in a complex agricultural catchment (577463)
Katya Dimitrova Petrova1,2, Josie Geris1, Mark Wilkinson2, Allan Lilly2 and Chris Soulsby1, (1)University of Aberdeen, Northern Rivers Institute, Aberdeen, United Kingdom, (2)James Hutton Institute, Aberdeen, United Kingdom
 
Field testing of the Soil Water Isotope Storage System (SWISS) (582408)
Rachel Elizabeth Havranek, Boulder, CO, United States, Kathryn E Snell, University of Colorado Boulder, Department of Geological Sciences, Boulder, CO, United States, Brett Davidheiser-Kroll, University of Colorado Boulder, Geological Sciences, Boulder, United States and Gabriel J Bowen, University of Utah, Salt Lake City, UT, United States
 
Hydrograph Separation Using Dual Isotopes in Catchments with Minimal Seasonality: A Bayesian Mixing Model Approach (584217)
Mohd Yusuf Jameel, University of Florida, School of Forest Resources and Conservation, Gainesville, FL, United States, Julian Klaus, Luxembourg Institute of Science and Technology, Catchment and Eco-hydrology, Esch-sur-Alzette, Luxembourg and Jeffrey McDonnell, University of Saskatchewan, Global Institute for Water Security, Saskatoon, SK, Canada
 
A Spectral Analysis Method to Eliminate Methanol and Ethanol Interference with CRDS Measurements of Water Isotope Ratios: Insights, Opportunities, and Challenges (584650)
Thomas Doherty1, Zhiwei Lin2, John Hoffnagle2, Brian N Popp3, Natalie Wallsgrove4, Aurora Kagawa-Viviani5, Suvankar Chakraborty6 and Jennifer Johnson7, (1)Picarro,Inc., Santa Clara, United States, (2)Picarro, Inc., Santa Clara, CA, United States, (3)University of Hawaii, Department of Earth Sciences, Honolulu, HI, United States, (4)University of Hawai'i, Department of Geology and Geophysics, Honolulu, HI, United States, (5)University of Hawaii at Manoa, Department of Geography and Environment, Honolulu, HI, United States, (6)University of Utah, Salt Lake City, United States, (7)Carnegie Institution for Science, Department of Global Ecology, Stanford, CA, United States
 
Global Change Induced Threats Across Scales: Assessing the Impact of Extreme Drought and Nitrogen Loading on a Temperate Grassland (587289)
Angelika Kübert1, Youri Rothfuss2, Miriam Götz3, Emma Kuester3, Sinikka Paulus3, Adrian Dahlmann3, Kathrin Kuehnhammer4, Arndt Piayda5, Christiane Werner3 and Maren Dubbert1, (1)University of Freiburg, Ecosystem Physiology, Freiburg, Germany, (2)Forschungszentrum Jülich, Jülich, Germany, (3)University of Freiburg, Freiburg, Germany, (4)Forschungszentrum Jülich, Agrosphere Institute (IBG-3), Jülich, Germany, (5)Johann Heinrich von Thünen Institute, Braunschweig, Germany
 
Stable isotope composition of soil water, groundwater, streams, and trees of the California Northern Coast Range (591763)
Kevin D. Bladon, Oregon State University, Forest Engineering, Resources, and Management, Corvallis, OR, United States, Salli Dymond, University of Minnesota Duluth, Duluth, MN, United States, Joe Wagenbrenner, USDA Forest Service Pacific Southwest Research Station, Arcata, CA, United States, Elizabeth Keppeler, USDA Forest Service, Pacific Southwest Research Station, Fort Bragg, United States and Jeffrey McDonnell, University of Saskatchewan, Global Institute for Water Security, Saskatoon, SK, Canada
 
Sulfur stable isotopes illuminate a biogeochemical “fingerprint” to trace agricultural sulfur through the critical zone (593738)
Anna Hermes1,2, Stefania Mambelli3, Wenbo Yang3, Todd E Dawson3,4 and Eve-Lyn S Hinckley1,2, (1)University of Colorado at Boulder, Environmental Studies Program, Boulder, CO, United States, (2)University of Colorado at Boulder, Institute of Arctic and Alpine Research, Boulder, CO, United States, (3)University of California Berkeley, Center for Stable Isotope Biogeochemistry, Berkeley, CA, United States, (4)University of California Berkeley, Integrative Biology, Berkeley, CA, United States
 
Transpiration is the youngest water flux in the humid tropics (604123)
Alicia Beatriz Correa Barahona1, Christian Birkel1, Jason Gutierrez1, Joni Dehaspe2, Ana Maria Duran-Quesada3, Chris Soulsby4 and Ricardo Sanchez-Murillo5, (1)University of Costa Rica, Department of Geography and Water and Global Change Observatory, San Jose, Costa Rica, (2)Umweltforschungszentrum, Leipzig, Germany, (3)University of Costa Rica, Department of Physics and Geophysical Research Center, San Jose, Costa Rica, (4)University of Aberdeen, Northern Rivers Institute, Aberdeen, United Kingdom, (5)National University of Costa Rica, Stable Isotopes Research Group and Water Resources Management Laboratory, Heredia, Costa Rica
 
Spatial and temporal patterns of tree water uptake between catchments of contrasting lithologies (608664)
Qicheng Tang, Pennsylvania State University Main Campus, Department of Ecosystem Science and Management, University Park, PA, United States, Jonathan M Duncan, Pennsylvania State University Main Campus, Ecosystem Science and Management, University Park, PA, United States and David M Eissenstat, Pennsylvania State University, Department of Ecosystem Science and Management, University Park, PA, United States
 
Simulating preferential flow in a two water worlds framework (617773)
Jesse Radolinski, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States, Luke Pangle, Georgia State University, Department of Geosciences, Atlanta, GA, United States, Julian Klaus, Luxembourg Institute of Science and Technology, Catchment and Eco-hydrology, Esch-sur-Alzette, Luxembourg, Durelle Scott, Virginia Tech, Blacksburg, VA, United States and Ryan D. Stewart, Virginia Polytechnic Institute and State University, Crop and Soil Environmental Sciences, Blacksburg, VA, United States
 
Optimal Transport for Assessing Nitrate Source and Pathway Connectivity in a Human-Disturbed Watershed (627487)
Admin Husic1, James Fox2, Morgan Gerlitz2, Erik D. Pollock3 and Jason Backus4, (1)University of Kansas, Civil, Environmental and Architectural Engineering, Lawrence, KS, United States, (2)University of Kentucky, Civil Engineering, Lexington, KY, United States, (3)University of Arkansas, Stable Isotope Lab, Fayetteville, AR, United States, (4)Kentucky Geological Survey Lexington, Lexington, United States
 
Using isotopes to understand ecohydrological flux dynamics in forests and grasslands in a drought-sensitive lowland catchment (488971)
Lukas Kleine, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany, Doerthe Tetzlaff, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany and Chris Soulsby, University of Aberdeen, Northern Rivers Institute, Aberdeen, United Kingdom
 
Influences of forest canopy on snowpack accumulation and isotope ratios (492903)
Jana von Freyberg1,2, Tanja R. Bjarnadóttir3 and Scott T Allen2, (1)WSL Swiss Federal Institute for Forest, Snow and Landscape Research, Research Unit Mountain Hydrology and Mass Movements, Birmensdorf, Switzerland, (2)ETH Swiss Federal Institute of Technology Zurich, Department of Environmental Systems Science, Zurich, Switzerland, (3)ETH Swiss Federal Institute of Technology Zurich, Department of Civil, Environmental and Geomatic Engineering, Zurich, Switzerland
 
Quantitative tracing of precipitation in the critical zone: The Spike II experiment (499110)
Paolo Benettin, Swiss Federal Institute of Technology Lausanne, ENAC/IIE/ECHO, Lausanne, Switzerland, Magali Furlan Nehemy, University of Saskatchewan, Saskatoon, SK, Canada, Mitra Asadollahi, Swiss Federal Institute of Technology Lausanne, Lausanne, Switzerland, Andrea Rinaldo, Swiss Federal Institute of Technology Lausanne, Laboratory of Ecohydrology, Lausanne, Switzerland; Università di Padova (Italy), ICEA, Padova, Italy and Jeffrey McDonnell, University of Saskatchewan, Global Institute for Water Security, Saskatoon, SK, Canada
 
Interaction of climate, vegetation, and water age in catchments across scales and climate zones (501243)
Stefanie Lutz1, Anushka Weerasingha1, Miriam Coenders2 and Markus Hrachowitz2, (1)Helmholtz Centre for Environmental Research UFZ Leipzig, Hydrogeology, Leipzig, Germany, (2)Delft University of Technology, Delft, Netherlands
 
Interpreting Tree Xylem Isotopic Measurements in the context of Tree Water Storage and Mixing (502918)
James Knighton1,2, Sylvain Kuppel3,4, Aaron Smith5, Matthias Sprenger6,7, Chris Soulsby3,5 and Doerthe Tetzlaff5,8, (1)Cornell University, Biological and Environmental Engineering, Ithaca, NY, United States, (2)University of Maryland College Park, College Park, NY, United States, (3)University of Aberdeen, Northern Rivers Institute, Aberdeen, United Kingdom, (4)Institut de Physique du Globe de Paris / CNRS, Paris, France, (5)Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany, (6)North Carolina State University Raleigh, Raleigh, NC, United States, (7)Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, Spain, (8)Humboldt University of Berlin, Berlin, Germany
 
Investigating the root plasticity response of Centaurea jacea to soil water availability changes from stable isotopic analysis (507334)
Youri Rothfuss1, Kathrin Kuehnhammer1,2, Angelika Kübert3, Nicolas Brueggemann1, Paulina Deseano Diaz1, Dagmar van Dusschoten4, Mathieu Javaux1,5, Steffen Merz6, Harry Vereecken1 and Maren Dubbert3, (1)Forschungszentrum Jülich, Agrosphere Institute (IBG-3), Jülich, Germany, (2)University of Freiburg, Ecosystem Physiology, Freiberg, Germany, (3)University of Freiburg, Ecosystem Physiology, Freiburg, Germany, (4)Forschungszentrum Julich, Plant Sciences (IBG-2), Jülich, Germany, (5)Université Catholique de Louvain, Louvain-La-Neuve, Belgium, (6)Forschungszentrum Jülich, Fundamental Electrochemistry (IEK-9), Jülich, Germany
 
Plant Water Status and Source Water Partitioning: A Combined Analysis of Plant Hydraulics, Root Distribution, Isotopic Dynamics, and Soil Matric Potential (516130)
Magali Furlan Nehemy1, Paolo Benettin2, Mitra Asadollahi3, Dyan Pratt1, Andrea Rinaldo4 and Jeffrey McDonnell5, (1)University of Saskatchewan, Saskatoon, SK, Canada, (2)École Polytechinque Fédérale de Lausanne, Lausanne, Switzerland, (3)Swiss Federal Institute of Technology Lausanne, Lausanne, Switzerland, (4)Swiss Federal Institute of Technology Lausanne, Laboratory of Ecohydrology, Lausanne, Switzerland, (5)University of Saskatchewan, Global Institute for Water Security, Saskatoon, SK, Canada
 
Relating Relative Watershed Residence Times to Stream Nitrate Concentrations in Tile-Drained Landscapes Using Stable Isotope Variability (516431)
Spencer Willem1, Alexandra Meyer1, Shannon Stanis2, Emma Beck3, Josh Allen3 and Lisa R Welp4, (1)Purdue University, Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States, (2)Wabash River Enhancement Corporation, Lafayette, IN, United States, (3)Purdue University, West Lafayette, United States, (4)Purdue University, Earth, Atmospheric and Planetary Sciences, West Lafayette, IN, United States
 
Fractionation of Fe isotopes with iron oxidation and leaching in lacustrine sediments, implication of the formation of sedimentary kaolin deposits. (527770)
Tetsuichi Takagi1, Ki-Cheol Shin2, Mayumi Jige3, Mihoko Hoshino1 and Katsuhiro Tsukimura1, (1)Geological Survey of Japan, AIST, Tsukuba, Japan, (2)Research Institute for Humanity and Nature, Kyoto, Japan, (3)Osaka-Ohtani University, Tondabayashi, Japan
 
Is isotopic hetereogeneity in tree water pools linked to phenology? Inter species and seasonal variations (Invited) (537494)
Paula Martín-Gómez1, Adrià Barbeta1,2, Régis Burlett3, Jérôme Ogée1, Bastien Fréjaville1, Nicolas Devert1 and Lisa Wingate1, (1)INRA Bordeaux-Aquitaine, Villenave-d'Ornon, France, (2)BEECA, Universitat de Barcelona, Barcelona, Spain, (3)BIOGECO, INRA, Université de Bordeaux, Pessac, France
 
Coffee Arabica and shade trees show complementary use of soil water in a traditional agroforestry system (540163)
Lyssette E Munoz Villers, Universidad Nacional Autonoma de Mexico, Mexico City, Mexico, Josie Geris, University of Aberdeen, Northern Rivers Institute, Aberdeen, United Kingdom, Maria Susana Alvarado-Barrientos, Instituto de Ecologia AC, Red de Ecología Funcional, Xalapa, Mexico, Friso Holwerda, Universidad Nacional Autonoma de Mexico, Centro de Ciencias de la Atmósfera, Mexico City, Mexico and Todd E Dawson, University of California Berkeley, Integrative Biology, Berkeley, CA, United States
 
Continuous Water Isotopic Observations in the Atmosphere across National Ecological Observatory Network (546241)
Hongyan Luo1, Natchaya Pingintha Durden2, Christopher Florian2 and Claire Lunch1, (1)National Ecological Observatory Network, Boulder, CO, United States, (2)National Ecological Observatory Network, Battelle, Boulder, CO, United States
 
Seasonal Partitioning of Precipitation Between Streamflow and Evapotranspiration, Inferred from End-member Splitting Analysis (550031)
James W Kirchner, ETH Swiss Federal Institute of Technology Zurich, Department of Environmental Systems Science, Zurich, Switzerland; WSL Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland and Scott T Allen, University of Utah, Geology and Geophysics, Salt Lake City, UT, United States
 
Intra-Event Trends in Stable Isotopes: Exploring Summer Monsoon Convective Precipitation in Arizona (550573)
Mark Anderson Kautz1, Joel A Biederman1, David C Goodrich2, David G Williams3, David L Dettman4, Pieter Hazenberg5 and Walter Arthur Petersen6, (1)USDA-ARS, Southwest Watershed Research Center, Tucson, AZ, United States, (2)Agricultural Research Service, Tucson, AZ, United States, (3)University of Wyoming, Department of Botany, Laramie, WY, United States, (4)University of Arizona, Tucson, AZ, United States, (5)Deltares, Delft, Netherlands, (6)NASA MSFC, Science Research and Projects Office, Huntsville, AL, United States
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