EP017
Earth Surface Processes and the Global Carbon Cycle
Session ID#: 81987
Session Description:
The carbon cycle plays a central role in Earth’s climate system and the habitability of our planet. While many biogeochemical reactions contribute to carbon transformations, Earth surface processes are thought to play an important modulating role through their influences on reaction timescales, the physical properties of soils/sediments, and mass fluxes, among other key parameters. Here, we solicit contributions that investigate the coupling between surface processes (e.g., erosion, fluid flow, and sediment deposition) and carbon cycling (organic and/or inorganic). We welcome submissions at a range of spatial (soil/hillslope, watershed, global) and temporal scales (modern to the geological past), and from diverse climatic and tectonic environments. Contributions may range from field studies to laboratory experiments, proxy studies utilizing isotope geochemistry, and theoretical and modelling studies. By bringing together researchers in the fields of surface processes, biogeosciences, hydrology, and everything in between, we aim to build a holistic understanding of the carbon cycle.
Index Terms:
0428 Carbon cycling [BIOGEOSCIENCES]
1030 Geochemical cycles [GEOCHEMISTRY]
1815 Erosion [HYDROLOGY]
1862 Sediment transport [HYDROLOGY]
Primary Convener: Mark A Torres, Rice University, Earth, Environmental, and Planetary Sciences, Houston, TX, United States
Conveners: Gen Li, California Institute of Technology, Pasadena, CA, United States, Melissa J Murphy, University College London, London, United Kingdom and Jordon Hemingway, Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States
Primary Liaison: Gen Li, California Institute of Technology, Pasadena, CA, United States
Origin and alteration of suspended and sedimentary organic matter in the contrasting subtropical river systems from South China and Taiwan Island (492968)
Baozhi Lin1, Zhifei Liu1, Timothy I Eglinton2, Selvaraj Kandasamy3, Thomas M. Blattmann2,4, Negar Haghipour2 and Gert J De Lange5, (1)Tongji University, State Key Laboratory of Marine Geology, Shanghai, China, (2)ETH Swiss Federal Institute of Technology Zurich, Geological Institute, Zurich, Switzerland, (3)State Key Laboratory of Marine Environmental Science, Department of Geological Oceanography, Xiamen, China, (4)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Biogeochemistry Program, Kanagawa, Japan, (5)Utrecht University, Department of Earth Science-Geochemistry, Geosciences, Utrecht, Netherlands
Chemical Weathering Rate and Its Relationship with Physical Erosion in Small Mountainous Rivers, Taiwan (493662)
Yi-jhe Lee, Taipei, Taiwan, Tsung-Yu Lee, NTNU National Taiwan Normal University, Taipei, Taiwan and Jr-Chuan Huang, National Taiwan University, Taipei, Taiwan
Quantifying the impact of sulfuric acid weathering on the carbon budgets of the Irrawaddy and Salween rivers in Myanmar (493699)
Emily Stevenson1, Edward Tipper1,2, Katy Relph2, Alexandra v Turchyn1, J. Jotautas Baronas2 and Michael J Bickle3, (1)University of Cambridge, Cambridge, United Kingdom, (2)University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom, (3)Univ Cambridge, Cambridge, United Kingdom
Fluvial Carbon Fluxes from Tropical Mountainous Rivers: Spatial and Seasonal Variations (494062)
Kiran Kumar Reddy Shiligireddy, Hyderabad, Telangana, India, Harish Gupta, Osmania University, Hyderabad, India, Badimela Upendra, Mr., Hydrology, Trivandrum, India and Dontireddy Venkat, Dr., Hyderabad, India
Influence of fluvial sediment abrasion on carbonate, silicate, and sulfide weathering (Invited) (494756)
Joel S Scheingross1, Aaron Bufe2, Jordon Hemingway3, Niels Hovius4, Tanya Goldberg2 and Anja M. Schleicher5, (1)University of Nevada Reno, Reno, NV, United States, (2)GFZ German Research Centre for Geosciences, Potsdam, Germany, (3)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, (4)Helmholtz Centre, German Research Centre for Geosciences (GFZ), Potsdam, Germany, (5)Helmholtz-Zentrum Potsdam, GeoForschungsZentrum (GFZ), Telegrafenberg, Potsdam, Germany
Geochemical Weathering and Atmospheric CO2 Drawdown in Canadian Alpine and Arctic Proglacial Freshwater Systems (Banff, Jasper, and Quttinirpaaq National Parks) (495078)
Jessica A. Serbu1, Kyra A. St.Pierre2 and Vincent L St.Louis1, (1)University of Alberta, Edmonton, AB, Canada, (2)University of British Columbia, Hakai Coastal Initiative, Institute for the Oceans and Fisheries, Vancouver, BC, Canada
Temperature and hydrological controls on carbon dioxide release from weathering of sedimentary rocks (496230)
Robert G Hilton, Durham University, Geography, Durham, United Kingdom, Guillaume Soulet, Shanghai, China, Mark Garnett, Scottish Universities Environmental Research Center at the University of Glasgow, NERC Radiocarbon Facility, East Kilbride, United Kingdom, Thomas Croissant, Durham University, Durham, United Kingdom, Sebastian Klotz, IRSTEA, Draix, France, Tobias Roylands, University of Durham, Durham, United Kingdom and Caroline Le Bouteiller, Univ. Grenoble Alpes, IRSTEA UR ETNA, Saint Martin D'Heres, France
Evolution of land plants impacted global rates of meander migration and biogeochemical fluxes (496947)
Alessandro Ielpi, Laurentian University, Harquail School of Earth Sciences, Sudbury, ON, Canada and Mathieu Gaetan Andre Lapotre, Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States; Stanford University, Geological Sciences, Stanford, CA, United States
Going beyond blue carbon: Organic carbon storage rates in clastic strata outpace rates in organic-rich strata in freshwater deltaic environments (497712)
Torbjorn E Tornqvist, Tulane University of Louisiana, Department of Earth and Environmental Sciences, New Orleans, LA, United States, Krista Lyn Jankowski, Tulane University, Earth and Environmental Sciences, New Orleans, LA, United States, Elena Steponaitis, Massachusetts Institute of Technology, Cambridge, MA, United States, Brad E Rosenheim, University of South Florida St. Petersburg, College of Marine Science, St Petersburg, FL, United States, Zhen Li, University of British Columbia, Vancouver, BC, Canada, Zhixiong Shen, Tulane University, New Orleans, LA, United States and Lael Vetter, University of Arizona, Geoscience, Tucson, AZ, United States
Uranium isotope constraints on weathering depth and implications for uplift-driven atmospheric CO2 drawdown (507268)
Le Li1, A. Joshua West2, Gen Li3 and Gaojun Li1, (1)Nanjing University, Nanjing, China, (2)Univ. of Southern California, Los Angeles, CA, United States, (3)California Institute of Technology, Pasadena, CA, United States
Al/Fe Mineral Controls on Soil Organic Carbon Stock Across Tibetan Alpine Grasslands (509326)
Kai Fang1, Shuqi Qin1, Leiyi Chen1, Qiwen Zhang1 and Yuanhe Yang2, (1)IB Institute of Botany, Chinese Academy of Sciences, Beijing, China, (2)Chinese Academy of Sciences, Beijing, China
Spatial organization of potential accommodation space and organic carbon storage along valley floors, Kananaskis, Canadian Rockies (512604)
Deepa Gurung, University of Calgary, Geography, Calgary, AB, Canada, Yvonne E Martin, Univ Calgary, Calgary, AB, Canada and Edward A Johnson, Univ Calgary, Biological Sciences, Calgary, AB, Canada
Mobilization and fate of rock carbon in contrasting watersheds along US west coast (513437)
Miguel A Goni1, Julie C Pett-Ridge1, Brian A Haley2 and Layla Ghazi3, (1)Oregon State University, Corvallis, OR, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (3)Oregon State University, College of Earth, Ocean & Atmospheric Sciences, Corvallis, OR, United States
Characterization of organic carbon transported by the Yellow River and implications for its burial in marine sediments (514534)
Yushuang Zhang1, Valier Galy2, Meng Yu3 and Meixun Zhao3, (1)Qingdao, Shandong, China, (2)WHOI-MCG, Woods Hole, MA, United States, (3)Ocean University of China, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao, China
Quantifying organic carbon mobilization and storage due to bank erosion in permafrost-dominated river floodplains (516765)
Madison Douglas1, Michael P. Lamb1, Joel C Rowland2, Gen Li1, Preston Cosslett Kemeny1, A. Joshua West3, Anastasia Piliouras4, Jon Schwenk5, Austin J Chadwick1 and Woodward W Fischer6, (1)California Institute of Technology, Pasadena, CA, United States, (2)Los Alamos National Laboratory, Los Alamos, NM, United States, (3)Univ. of Southern California, Los Angeles, CA, United States, (4)University of Texas at Austin, Jackson School of Geosciences, Austin, TX, United States, (5)University of Minnesota Twin Cities, Department of Civil, Environmental, and Geo- Engineering, Saint Anthony Falls Laboratory, Minneapolis, MN, United States, (6)Caltech, Pasadena, CA, United States
Fluid residence time modulates Li isotope transport during silicate weathering (517584)
Evan Joseph Ramos1, Zach Sickmann1,2 and Tomas N Capaldi1,3, (1)University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States, (2)University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, (3)Utah State University, Department of Geology, Logan, UT, United States
Estimating Amount and Fate of Aboveground Biomass and Carbon Mobilized by Mass-wasting Events in SE Alaska (522023)
Bryce Vascik, Portland State University, Department of Geology, Portland, OR, United States, Adam Michael Booth, Portland State University, Department of Geology, Portland, United States and Brian Buma, University of Colorado Denver, Department of Integrative Biology, Denver, CO, United States
Reactivity of riverine organic carbon from chemical fractionation and ramped pyrolysis oxidation (533224)
Gen Li1, Valier Galy2, A. Joshua West3, Jordon Hemingway4, Michael P. Lamb1 and Woodward W Fischer5, (1)California Institute of Technology, Pasadena, CA, United States, (2)WHOI-MCG, Woods Hole, MA, United States, (3)Univ. of Southern California, Los Angeles, CA, United States, (4)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, (5)Caltech, Pasadena, CA, United States
Understanding the interactions between tectonic processes, erosion, weathering and climate. New insights from the DynSoil-GEOCLIM modelling approach (534716)
Pierre Maffre, University Of California, Berkeley, Berkeley, United States, Yuem Park, University of California Berkeley, Berkeley, CA, United States, Nicholas Swanson-Hysell, University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States and Yves Godderis, CNRS, GET, Paris Cedex 16, France
Quantitation of Fossilized Organic Carbon as a Result of Carbonate Weathering in the Mountainous Catchment Basins, SW China (535285)
Sugandha Panwar1, Shouye Yang2, Zheng Lai3, Fang Cao3 and Lei Bi4, (1)Tongji University, Shanghai, China, (2)State Key Laboratory of Marine Geology, Tongji University, Shanghai, China, (3)Tongji University, State Key Laboratory of Marine Geology, Shanghai, China, (4)State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
Weathering Processes in the Four Largest Chinese River Basins: Insights from the Lithium Isotopic Compositions of River-transported Material (535328)
Yilong Song1, Xu Zhang2, Chetelat Benjamin3, Julien Bouchez4, Antoine Cogez5, Hongming Cai1, Yutian Ke6, Damien Calmels6, Jiubin Chen7 and Jerome Gaillardet4, (1)Tianjin University, Tianjin, China, (2)IPGP, Paris, France, (3)Tianjin Univeristy, ISESS, Tianjin, China, (4)Institut de Physique du Globe de Paris, Paris, France, (5)Institut de Physique du Globe de Paris UMR CNRS 7154, Paris, France, (6)Université Paris Sud, Orsay, France, (7)Tianjin University, Institute of Surface-Earth System Science, Tianjin, China
Basalt weathering response to variations in physical erosion during rock uplift on the Nicoya Peninsula, Costa Rica (Invited) (555249)
Nicole West, Central Michigan University, Mount Pleasant, MI, United States and Kristin D Morell, University of California Santa Barbara, Department of Earth Science, Santa Barbara, CA, United States
Tracing rhenium in the Shale Hills Critical Zone Observatory: Insights on understanding rock organic carbon weathering (558586)
Mateja Ogrič1, Mathieu Dellinger1, Jennifer Williams2, Susan Brantley3 and Robert G Hilton1, (1)Durham University, Geography, Durham, United Kingdom, (2)Pennsylvania State University, Earth and Environmental Systems Institute and Department of Geosciences, University Park, PA, United States, (3)Pennsylvania State University, Earth and Environmental Systems Institute, University Park, PA, United States
Neogene Burial of Organic Carbon in the Global Ocean (568719)
Yige Zhang, Texas A&M University College Station, Department of Oceanography, College Station, TX, United States, Ziye LI, Ocean University of China, College of Marine Geosciences, Qingdao, China; Texas A&M University College Station, Department of Oceanography, College Station, United States, Mark Torres, Rice University, Houston, TX, United States and Benjamin Mills, University of Leeds, School of Earth and Environment, Leeds, United Kingdom
Constraining Stable K Isotope Mass Balance of the Global Ocean and Its Implications for the Modern and Past Silicate Cycle (568836)
Xin-Yuan Zheng1,2, Brian L Beard2, Mason Neuman2, Maria Florencia Fahnestock3, Julia G Bryce3 and Clark Johnson2, (1)University of Minnesota-Twin Cities, Department of Earth and Environmental Sciences, Minneapolis, MN, United States, (2)University of Wisconsin-Madison, Department of Geoscience, Madison, WI, United States, (3)University of New Hampshire, Department of Earth Sciences, Durham, NH, United States
Dissecting chemical weathering pathways and CO2 fluxes in a mountainous catchment with rapid uplifting rate (569534)
Pei-Ling Wang1, Yi-Jie Wang1, Bo-Yu Chen2, Jui-Fen Tsai2, Tzu-Hsuan Tu2, Lu-Yu Wang2 and Li-Hung Lin2, (1)Institute of Oceanography, National Taiwan University, Taipei, Taiwan, (2)Department of Geosciences, National Taiwan University, Taipei, Taiwan
Effects of stochastic sedimentation on organic carbon diagenesis and preservation (580680)
Yi Hou, Rice University, Department of Earth, Environmental and Planetary Sciences, Houston, TX, United States and Mark Torres, Rice University, Houston, TX, United States
Terrestrial biomolecular burial efficiencies on continental margins (583921)
Pengfei Hou1, Meng Yu1, Meixun Zhao1 and Timothy I Eglinton2, (1)Ocean University of China, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao, China, (2)ETH Swiss Federal Institute of Technology Zurich, Geological Institute, Zurich, Switzerland
Drivers of fine-scale carbon/biomass distribution in landslide systems - Disturbances, soil, or slope? (594127)
Kyle Turchick, University of Colorado Denver, Denver, CO, United States, Bryce Vascik, Portland State University, Department of Geology, Portland, OR, United States, Adam Michael Booth, Portland State University, Department of Geology, Portland, United States and Brian Buma, University of Colorado Denver, Department of Integrative Biology, Denver, CO, United States
How Management Practices Influence the Stability of Surface Aggregates During Intense Rainfall Events (607032)
Kenneth Wacha1, Jerry Hatfield1, Thanos Papanicolaou2, Cindy Cambardella1, Christian Dold1 and Chi-hua Huang3, (1)USDA-ARS, National Laboratory for Agriculture and the Environment, Ames, IA, United States, (2)University of Tennessee, Knoxville, TN, United States, (3)USDA ARS, National Soil Erosion Research Laboratory, West Lafayette, IN, United States
Accelerated turnover of tropical soil carbon in response to post-glacial monsoon strengthening. (613561)
Valier Galy1, Christopher J Hein2, Negar Haghipour3 and Timothy I Eglinton3, (1)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (2)Virginia Institute of Marine Science, Gloucester Point, VA, United States, (3)ETH Swiss Federal Institute of Technology Zurich, Geological Institute, Zurich, Switzerland
Equilibrium between river water chemistry and the sediment exchange pool in some of the world’s largest rivers? (613968)
Edward Tipper1, Emily Stevenson2, Katy Relph1, Christina Larkin2, J. Jotautas Baronas1, Genevieve Hughes2 and Linshu Feng1, (1)University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom, (2)University of Cambridge, Cambridge, United Kingdom
Can atmospheric dust deposition account for Earth’s riverine Si discharge? (619329)
Zachary Plante1, Nathan D Brown2, Julie C Fosdick3, George E Hilley1 and Seulgi Moon4, (1)Stanford University, Geological Sciences, Stanford, CA, United States, (2)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, United States, (3)University of Connecticut, Department of Geography & Center for Integrative Geosciences, Storrs, CT, United States, (4)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States
Sulfur and oxygen isotopes in riverine sulfate reveal redox recycling of sulfur across the Andes and Amazon transition (619420)
Emily Burt, University of Southern California, Los Angeles, CA, United States, A. Joshua West, Univ. of Southern California, Los Angeles, CA, United States, Markus Bill, Lawrence Berkeley National Lab, Berleley, CA, United States, Mark E Conrad, Lawrence Berkeley National Lab, Berkeley, CA, United States and John Neil Christensen, Lawrence Berkeley Natl Lab, Berkeley, CA, United States
Elucidating Terrestrial Organic Carbon Burial Mechanisms – Insights from the Western Irish Namurian Basin, County Clare, Ireland (620457)
Trevor Cole1, Preston Cosslett Kemeny2, Jeffrey A Nittrouer3 and Mark Torres1, (1)Rice University, Houston, TX, United States, (2)California Institute of Technology, Pasadena, CA, United States, (3)Rice University, Department of Earth, Environmental and Planetary Sciences, Houston, TX, United States
