Session 1: Tropical biogeochemistry – Monday January 8th starting at 1:45 PM in Auditorium 3

• S1.T1 – Rebecca Barnes – The Amazon and Tropical Forests: Its Global Implications and Needed Urgent Actions
• S1.T2 – Amanda Albright Olsen – Chemical Weathering of Ultramafic Rocks at the Rio Cupeyes NEON Site in Southwestern Puerto Rico
• S1.T3 – Emma Aronson – Geomicrobiology Trends with Depth Across Varied Sites: Initial Results from the CZNet GeoMicro Project
• S1.T4 – Tanner Beckstrom – From Volcanic Ash to Abundant Earth: Understanding Andisol Soil Health and Organic Matter Dynamics Across an Environmental Gradient on Hawaii Island
• S1.T6 – William McDowell – Effects of Hydrologic Connectivity on Greenhouse Gas Evasion from Small Tropical Rivers
• S1.T7 – Jamie Shanley – Attributing Changes in Streamflow Response to Transpiration and Canopy Interception Changes after Defoliation from 2017 Hurricane Maria in Puerto Rico
• S1.T8 – Kaido Soosaar – Assessing Methane and Nitrous Oxide Fluxes in Soil and Stems of Malaysian Tropical Peat Swamp Forests
• S1.T9 – Kuno Kasak (presented by Kaido Soosaar) – Assessing Carbon Emissions from Drainage Ditches in Oil Palm Plantations on Peat Soil: A Case Study in Borneo, Malaysia
• S1.T10 – Gerhard Gebauer – Partial Mycoheterotrophy in the Understory of a Tropical Forest in Panama: A Multi-element Stable Isotope Natural Abundance Approach
• S1.T12 – Daniela Cusack – Seasonal and Experimental Drying Effects on Soil Carbon and Nutrient Cycling across Four Distinct Panamanian Forests 

• S1.P1 – Bez Warren – Temporal and Spatial Precipitation Chemistry of Puerto Rico and US Virgin Islands
• S1.P2 – Thomas Korstanje – Temporal Chemical Weathering in the Río Yahuecas Watershed
• S1.P3 – Marcela Canon – Nutrient and Streamflow Fluxes in the Espiritu Santo River, a Tropical Watershed in the Luquillo Mountains
• S1.P4 – Kristina Estrada – How Disturbing: The Effects of Anthropogenic Disturbance on Soil Health, Productivity, and Plant Community Makeup in Tropical and Subtropical Systems
• S1.P5 – Susana Bernal – Is My Teaching Gender-Fair? A Self-Assessment Questionnaire

Session 2: Aquatic Carbon Cycling in the Anthropocene: from Molecules to Meta-Analyses – Tuesday January 9th starting at 9:30 AM in Auditorium 3

• S2.T1 – Kelly Aho – Building a Processed-based Understanding of Discharge-driven Variability in CO2 and CH4 Emissions
• S2.T2 – David Fazio – Methane Dynamics in the Illinois Waterway from Lake Michigan to the Confluence of the Mississippi River: Contrasting Seasonal Patterns of Methane in Urban and Agricultural Environments
• S2.T3 – Rachel Pillia – Contributions of Hydropower Reservoirs to Global Carbon Emissions:  Breaking Down Sources of Uncertainties
• S2.T4 – Rachel Gabor – Seasonal Drivers of the Carbon Budget in the Western Basin of Lake Erie
• S2.T5 – Katie Gaffney – Spatial and Seasonal Variability of Dissolved Organic Matter and Nitrogen in Lake Erie Tributaries
• S2.T6 – Carsten Meyer-Jacob – Impacts of Acid Deposition and Lake Browning on Organic Carbon Storage in Canadian Northern Forest Lakes
• S2.T7 – Jakub Hruska – The Increase in Streamwater DOC Concentrations may not Necessarily Imply the Increase of DOC Fluxes, an Example from Central European Catchments.
• S2.T8 – Pavel Kram – Long-term Patters of DOC Concentrations in Soil Water at Catchments with Contrasting Acid-base Chemistry
• S2.T9 – Vanessa Garayburu-Caruso – Drying and Rewetting of Riverbed Sediment Shifts DOM Thermodynamics and Influences Sediment Respiration Rates
• S2.T10 – Katherine Wardinski – Dissolved Organic Matter Release at the Soil-water Interface in Isolated Wetlands
• S2.T11 – Kimberly Wickland – Dissolved Organic Matter Dynamics in the Upper Mississippi River Basin
• S2.T12 – Anna Bergstrom – The Changing Climate and Landscape Mosaic Means More but Less Labile Organic Carbon Exports from Glacierized Watersheds

• S2.P1 – Megan Greige – Dissolved Organic Matter Composition in Three Urbanized Streams
• S2.P2 – Kevin Ryan – Drivers of Riverine Organic Matter Diversity Vary Across Catchments of the Contiguous United States
• S2.P3 – Paige Kehoe – Beavers as Arctic Carbon Cycle Engineers: The Impacts of Beavers on Organic Matter Cycling in Permafrost Landscapes

Session 3: Soil carbon stabilization and C sequestration – Monday January 8th starting at 1:45 PM in Auditorium 2

• S3.T1 – Debjani Sihi – Modeling Temperature Sensitivity of Soil Carbon Loss from a Lowland Tropical Forest
• S3.T2 – Jan Frouz – Broadleaf and Conifers and Their Interaction with Soil Biota Play Contrasting Role in Soil C Sequestration at Various Stages of Pedogenesis
• S3.T3 – Lubos Boruvka – Principal Drivers of Organic Carbon Stocks in Forest Soils of the Czech Republic
• S3.T4 – Justin Richardson – Does Climate or Tree Roots Control C and Nutrient Sequestration in Temperate Forests? A Soil Translocation Approach
• S3.T5 – Liisa Ukonmaanaho – Mitigation and Adaptation of Carbon Sequestration in Multi Objective Forest Management Through Co-creation with Stakeholders (CARBONPATH)
• S7.T6 – Jennifer Holm – Coupled biogeochemistry modeling in the ELM-FATES modeling for understanding tropical forest regrowth dynamics
• S3.T7 – Daniel Liptzin – The Role of Soil Health Practices on Soil Organic Carbon in Managed Systems
• S3.T8 – Christine Goodale – Soil Carbon Stock Surprises Over Three Decades After Liming
• S3.T9 – Sophie von Froom – Understanding Soil Organic Carbon Abundance and Persistence at Continental to Global Scales

• S3.P1 – Lenka Pavlu – The Effect of Agricultural Practices on Stabilization of Organic Matter in Various Soil Types.
• S3.P2 – Murray Sternberg – Evaluation of Soil Carbon Dynamics and Microbial Proxies Under Different Climate-smart Agriculture Practices
• S3.P3 – Frantisek Buzek – Tracing Carbonaceous Emission in an Industrial Conurbation in Central Europe using 13C Data
• S3.P4 – Joshua Landis – Age Dating Soil Organomineral Complexation from Both Sides: A Comparison of 14C and Fallout Radionuclide (FRN) Chronometers
• S3.P5 – Marie Plasova – The Variable Sensitivity of Soil Respiration to Temperature is Determined by the Climatic Gradient Along the GEOMON Catchments.

Session 4: Change in the Anthropocene: Nutrient cycling  — Eutrophication to Oligotrophication – Tuesday January 9th starting at 1:30 PM in Auditorium 2

• S4.T1 – Marjo Palvianinen – Catchment Scale Nutrient Balance as a Tool in Precision Forestry
• S4.T2 – Bernhard Mayer – Occurrence, Sources and Fate of Nitrate in Groundwater of Agricultural Watersheds in Southern Alberta, Canada
• S4.T3 – Bianca Rodriguez-Cardona – Nutrient and Organic Carbon Dynamics of a Boreal Hydroelectric Reservoir Complex Over the Initial Years after Flooding
• S4.T4 – David Frey – Disentangling Nitrogen’s Role as a Limiting Nutrient and Acidifier: How Does Nitrogen Availability Affect Soil Respiration?
• S4.T5 – Tomas Chuman – The Bedrock and Dominant Tree Species Control the Torest Response to Nitrogen Deposition
• S4.T6 – Michael Mirtl – Putting a Whole System Approach for ecosystem, critical zone and socio-ecological research into praxis at the European scale: From triggering long-term N impact studies to interoperable standards and sustainable eLTER research services.

• S4.P1 – Nikola Derková – The Mass Balance of Base Cations (Mg, Ca and K) and P at 14 Small Catchments, Czech Republic
• S4.P2 – Emily Elliott – Biogeochemical Implications of Drinking Water Lead Abatement in Legacy Urban Streams
• S4.P3 – Abby Yancy – Assessment of Change in the Upper Ohio River Basin: Impacts of River Regulation and Climate Change on Streamflow and Nutrient Cycling
• S4.P4 – Lillian Labus – The Response of Lake Nutrients During Treatment of a Harmful Algal Bloom by Nanobubble Ozone Technology
• S4.P5 – Marketa Stepanova – Contribution of Rime to Atmospheric Sulfur and Nitrogen Deposition in Central Europe

Session 5: Wetland hydrology and biogeochemistry – Thursday January 11th starting at 10:45 AM in Auditorium 3

• S5.T1 – Nancy Dise – Effects of Experimental Warming and Drought on Gaseous Carbon Fluxes and the Carbon Balance of a Welsh Raised Bog
• S5.T2 – Sandeep Thayamkottu (presented by Ulo Mander) – Carbon Sink Strength in an Arctic Rich Fen is Driven by Primary Production and Leaf Area.
• S5.T3 – Annamari Laurén – Water and Nutrient Management in Peatland Forests under Changing Climate
• S5.T4 – Ulo Mander – Drainage and Drought Increase Greenhouse Gas Fluxes in Global Peatlands
• S5.T5 – Natalie Griffiths – Warming Alters Solute Concentrations and Fluxes from Peatland Streams
• S5.T6 – Jessica Tipton (presented by Stefanie Whitmire) – Assessing the Impacts of Sargassum Brown Tide to Nearshore Water Quality and Seagrass Beds in Jobos Bay, Puerto Rico
• S5.T7 – Mikk Espenberg – Microbial Community Dynamics and N2O-related Genes Responses to Short-term Flooding in Riparian Forest Soil
• S5.T8 – Mohit Masta (presented by Mikk Espenberg) – Using 15N Isotope Analysis to Understand N2O Production and Consumption Processes.
• S5.T9 – John White – Changes in Biogeochemical Cycling of N in a Wetland-Dominated Coastal Basin with River Reconnection
• S5.T10 – Malgorzata Suska Malawska – Understanding the Function of Macrophytes in Nitrogen and Phosphorous Management in Small Water Bodies

• S5.P1 – Liisa Ukonmaanaho – Wetland Restoration for the Future – ALFAwetlands
• S5.P2- Victoria Niedzinski – Modelling the Influence of Subsurface Geology on Northern Peatland Hydrology
• S5.P3 – Nicholas Corline – Wood Frog Tadpoles (Lithobates sylvaticus) Significantly Contribute to Nutrient Cycling and Enhance Litter Breakdown in Wetland Ecosystems

Session 6: Metal and biogeochemical cycling on geological and historical timescales — Paleoreconstructions – Tuesday January 9th starting at 9:30 AM in Auditorium 5

• S6.T1 – Justin Richardson – Importance of inherited Fe oxides on toxic (As, Cd, Pb) and potentially toxic metals (Cu, Ni, Zn) from grey shale-derived soils on geologic timescales
• S6.T2 – Joshua Landis – Unraveling processes of atmospheric Hg sequestration by soils over annual to centennial timescales
• S6.T3 – Tomas Navratil (presented by Filip Oelehle) – Mercury cycling during acid rain recovery at the 14 forested catchments of the GEOMON monitoring network, Czech Republic
• S6.T4 – Dawn Cardace – Elemental Cycling Recorded in Fracture Zone Minerals in Metal Rich Bedrock
• S6.T5 – Petr Porcal – Solar radiation as the likely cause of acid-soluble rare-earth elements in sediments of fresh water humic lakes

• S6.P1 – Leona Bohdalkova – Recent Pb soil pools and comparison of long-term Pb mass balances in headwater catchments with different pollution loads
• S6.P2 – Alexandre Andronikov – Elemental and Mg-Cu-Zn isotopic features of bay bolete (Imleria badia) mushrooms collected over the extended period from the contrasting substrates
• S6.P3 – Daniel Petrash – Episodic carbonate cementation in Eger Graben claystone: insights into metal cycling and biogeochemical dynamics in Early Miocene lake systems

Session 7: Modeling and synthesis for scaling biogeochemical cycling across space and time – Posters only

• S7.P1 – Andrew Reeve – Monitoring groundwater levels and simulating groundwater flow near the Ring of Cenotes, northeastern Yucatan, Mexico.
• S7.P2 – Frantisek Buzek – Greenhouse gases production in open-pit mines
• S7.P3 – Vanessa Garayburu-Caruso – Revealing basin-scale metabolism drivers via model-experiment integration

Session 8: Biogeochemical response to extreme events – Thursday January 11th starting at 10:45 AM in Auditorium 2

• S8.T1 – Susana Bernal – Living on the edge: Mediterranean streams as natural laboratories for understanding the impact of extreme hydrological events on biogeochemical transport and cycling.
• S8.T2 – YueHan Lu – Wildfires Linked to Oceanic Anoxic Events in Geological History
• S8.T3 – Carla López-Lloreda – Disturbances drive stream greenhouse gas changes and increased heterogeneity at the reach-scale
• S8.T4 – Jiri Kopacek – Increasing frequency of heavy rains accelerates recovery of the Tatra Mountain lakes from acidification
• S8.T5 – Sujay Kaushal – Extreme Events Alter the Future of Freshwater Salinization Syndrome
• S8.T6 – Stephen Norton – Adsorption to Al-, Fe-, and Mn-oxyhydroxides dominates rare earth element (REE) and P mobility in a headwater stream in Vermont, USA
• S8.T7 – Jonathan Halama – Scenarios assessing the effects of land-use change, forest management, and climate change on Puget Sound hydrologic regimes and freshwater habitat quality.
• S8.T8 – Meghan Midgley – Recovery of plant communities and soil biogeochemistry following high-intensity fire
• S8.T9 – Urmila Mallick – The importance of disturbance: hurricanes modify the biotic and abiotic drivers of herbaceous understory plant dynamics in a tropical rain forest
• S8.T10 – Paul Mayer – Centuries-old land-use changes influence contemporary biogeochemical groundwater behavior in headwater streams

• S8.P1 – Anna Lamacova – The Climate Change Imprint: Dynamic Shifts in Spring Yields and Water Quality in the Czech Republic
• S8.P2 – Emily Elliott – Geochemical fingerprints of flood dynamics from an artificial extreme event on the Allegheny River
• S8.P3 – Eva Martinkova – The origin of atmospheric lead in urban air of three European cities: Lead isotope approach
• S8.P4 – Martin Novak – Controls on 26Mg/24Mg, 44Ca/40Ca and 87Sr/86Sr isotope variability in two industrially polluted forested catchments in Central Europe: Insights into nutrient imbalances

Session 9: Solute and sediment generation across watersheds and scales – Tuesday January 9th starting at 1:30 PM in Auditorium 5

• S9.T1 – Sydney Shelton – Chemical Cocktails from Coast to Coast: Is there a Universal Water Quality Signature of Urbanization in Streams?
• S9.T2 – Stefanie Whitmire – Microplastic distribution in Puerto Rico streams
• S9.T3 – Stephen Hughes – Sedimentation from widespread mass wasting events in Puerto Rico
• S9.T4 – Martin Novak – Calcium, magnesium and strontium isotope dynamics in Central European headwater catchments along lithological and pollution gradients: Atmospheric vs. geogenic sources for runoff
• S9.T5 – Jan Frouz – Using FALCON an array of artificial catchments to study the role of surface heterogeneity on erosion and other ecosystem procese in early stages of ecosystem development
• S9.T6 – Jack Brookshire – Scaling of stream organic matter stoichiometry across forest biomes

• S9.P1 – Jon Duncan – Exploring Multiscale Variation in Concentration-Discharge Patterns
• S9.P2 – Colin Fuss – Patterns of stream water N and P concentrations during a high-flow event in northern hardwood forested headwater catchments
• S9.P3 – Mirae Guenther – Differences in watershed-level event scale dynamics of stormwater nutrient concentrations with changes in urban forest of Saint Paul, Minnesota, USA
• S9.P4 – Diana Karwan – Multiple Lines of Evidence Elucidate Sediment and Phosphorus Dynamics in Midwestern USA Watershed
• S9.P5 – Ondrej Drabek – Potential mobility of Cr from heavily contaminated soil

Session 10: Plant-soil-microbe interactions as drivers of ecosystem processes – Tuesday January 9th starting at 9:30 AM in Auditorium 2

• S10.T1 – Nanette Raczka – Nutrient acquisition strategies and fine root dynamics determine differences in soil carbon between intact and disturbed tropical peat swamp forests
• S10.T2 Edward Brzostek – Unlocking plant-microbial interactions in deep soils: Linking depth gradients in roots, microbial activity, and soil carbon
• S10.T3 – Iwona Jasser – Composition and molecular structure of microorganisms in biological soil crusts from a dry, high-altitude glacier foreland in the eastern Pamir (Tajikistan)
• S10.T4 – Caitlin Pries – Mycorrhizal associations mediate rhizodeposition but not soil C storage in response to nitrogen availability
• S10.T5 – Reti Ranniku – Stem CH4 and N2O fluxes from Downy Birch during the spring sap-run period and dependence on dissolved gas concentrations in xylem sap
• S10.T6 – Ember Morrissey – Ruckus in the rhizosphere: connecting exudation, microbial growth, and carbon cycling in forest soils
• S10.T7 – Filip Oulehle – Ecosystem d15N signature consistently integrates dissolved and gaseous N losses with microbial potential for nitrification and denitrification
• S10.T8 – Jennifer Kane – Bioenergy crop Miscanthus x giganteus acts as an ecosystem engineer to increase bacterial diversity and soil organic matter on marginal land

• S10.P1 – Fahad Ali Kazmi (presented by Ulo Mander) – Microbial nitrogen cycle in sub-tropical peatland cloud forest and wetland ecosystems of Reunion Island
• S10.P2 – Courtney Mathers – Investigating mycorrhizal type impacts on coupled C and N cycling at the soil aggregate scale in an experimental reforestation site