B53J:
Integrated Understanding of Climate, Carbon, Nutrient Cycles, Human Activities, and Their Interactions in Terrestrial Ecosystems II

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Session ID#: 31719

Session Description:
Assessments of coupled climate–carbon cycle simulations indicate that terrestrial carbon cycle feedbacks are highly uncertain and could significantly alter the rate of atmospheric CO2 increase and, therefore, climate change over the next one hundred years. The terrestrial carbon cycle is directly affected by increasing atmospheric CO2 levels and by climate change, and, further, is altered indirectly by feedbacks from potentially limiting nutrients (e.g., nitrogen and phosphorus). Changes in CO2 concentration and climate can affect the availability of these nutrients, and anthropogenic disturbances—such as tropospheric ozone, nitrogen deposition, and land cover and land use changes—also influence the carbon cycle, nutrient cycles, climate change, and the strength of their interactions. This session will focus on an integrated understanding of carbon, nutrient cycles, climate change, human activities, and their interactions and feedbacks to climate in terrestrial ecosystems.
Primary Convener:  Dr. Forrest M Hoffman, PhD, Oak Ridge National Laboratory, Oak Ridge, TN, United States
Conveners:  Xiaojuan Yang, Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States, Atul K Jain, University of Illinois at Urbana Champaign, Urbana, United States and Sasha Reed, U.S. Geological Survey, Southwest Biological Science Center Moab, Moab, United States
Chairs:  Atul K Jain, University of Illinois at Urbana Champaign, Urbana, United States, Xiaojuan Yang, Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, United States, Dr. Forrest M Hoffman, PhD, Oak Ridge National Laboratory, Oak Ridge, TN, United States and Sasha Reed, USGS, Moab, UT, United States
OSPA Liaison:  Atul K Jain, University of Illinois at Urbana Champaign, Urbana, United States

Cross-Listed:
  • GC - Global Environmental Change
Index Terms:

0428 Carbon cycling [BIOGEOSCIENCES]
0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]
0470 Nutrients and nutrient cycling [BIOGEOSCIENCES]
1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]

Abstracts Submitted to this Session:

Effects of Solar Geoengineering on Vegetation: Implications for Biodiversity and Conservation (279915)
Katherine Dagon, NSF National Center for Atmospheric Research, Boulder, United States and Daniel P Schrag, Harvard Univ, Cambridge, MA, United States
Carbon Cycle Extremes in the 22nd and 23rd Century and Attribution to Climate Drivers (239582)
Bharat Sharma1, Dr. Forrest M Hoffman, PhD2, Jitendra Kumar3 and Auroop R Ganguly1, (1)Northeastern University, Civil and Environmental Engineering Department, Boston, United States, (2)Computational Earth Sciences Group and Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, United States, (3)Oak Ridge National Laboratory, Climate Change Science Institute, Oak Ridge, TN, United States
Subsurface soil carbon losses offset surface carbon accumulation in abandoned agricultural fields (257590)
Yi Yang, Colorado State University, Natural Resource Ecological Laboratory, Fort Collins, CO, United States and Johannes M.H. Knops, Xi'an Jiaotong Liverpool University, Health and Environmental Sciences, Suzhou, China
Ecosystem service impacts of future changes in CO2, climate, and land use as simulated by a coupled vegetation/land-use model system (253423)
Sam S. Rabin1,2, Peter Alexander3, Roslyn Henry3, Peter Anthoni4, Thomas Pugh4,5, Mark Rounsevell4 and Almut Arneth4, (1)Princeton University, Princeton, NJ, United States, (2)Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research / Atmospheric Environmental Research, Karlsruhe, Germany, (3)University of Edinburgh, School of Geosciences, Edinburgh, United Kingdom, (4)Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research / Atmospheric Environmental Research, Garmisch-Partenkirchen, Germany, (5)University of Birmingham, School of Geography, Earth & Environmental Sciences and Birmingham Institute of Forest Research, Birmingham, B15, United Kingdom
Evaluating the Terrestrial Biogeochemical Responses and Feedbacks of Stratospheric Geoengineering Strategies (300548)
Cheng-En Yang, Oak Ridge National Laboratory, Computational Earth Sciences Group and Climate Change Science Institute, Oak Ridge, TN, United States; University of Tennessee, Civil and Environmental Engineering, Knoxville, TN, United States, Dr. Forrest M Hoffman, PhD, Computational Earth Sciences Group and Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, United States and Joshua S Fu, Oak Ridge National Laboratory, Computational Sciences and Engineering Division, Oak Ridge, United States; University of Tennessee, Civil and Environmental Engineering, Knoxville, United States
Biospheric feedback effects in a synchronously coupled model of human and Earth systems (273131)
Peter E Thornton1, Katherine V Calvin2, Andrew D Jones3, Alan V Di Vittorio4, Ben P Bond-Lamberty5, Louise P Chini6, Xiaoying Shi7, Jiafu Mao1, William Drew Collins8, James Edmonds5 and George C Hurtt9, (1)Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States, (2)Joint Global Change Research Institute, College Park, MD, United States, (3)Lawrence Berkeley National Laboratory, Climate and Ecosystem Sciences Division, Berkeley, United States, (4)Lawrence Berkeley National Lab, Berkeley, CA, United States, (5)Joint Global Change Research Institute, College Park, United States, (6)University of Maryland, College Park, United States, (7)Oak Ridge National Laboratory, Environmental Sciences Division and Climate Change Science Institute, Oak Ridge, TN, United States, (8)Berkeley Lab and UC Berkeley, Berkeley, United States, (9)University of Maryland College Park, Department of Geographical Sciences, College Park, MD, United States
Insights from Modeling the Integrated Climate, Biogeochemical Cycles, Human Activities and Their Interactions in the ACME Earth System Model (Invited) (222283)
L. Ruby Leung, Pacific Northwest National Laboratory, Richland, WA, United States, Peter E Thornton, Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, United States, William J Riley, Lawrence Berkeley National Laboratory, Berkeley, CA, United States and Katherine V Calvin, Joint Global Change Research Institute, College Park, MD, United States

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