B21K:
Photosynthesis and Respiration at Leaf, Ecosystem, Regional, or Global Scales: Constraints, Measurements, and Modeling I


Session ID#: 8026

Session Description:
Photosynthesis and respiration are two coupled processes operating under fundamentally different mechanisms. While net biosphere-atmosphere CO2 exchange is routinely measured at the ecosystem scale, the gross photosynthetic and respiratory fluxes are only loosely constrained at ecosystem, regional, and global scales. Uncertainty in the responses of photosynthesis and respiration to the environment at these scales is a major source of uncertainty in predictions of biosphere-atmosphere feedbacks under climate change. 

 

Advances have been made in developing methods to partition the measurable flux difference into photosynthetic and respiratory components. For example, eddy covariance CO2 flux partitioning, COS, SIF, isotopes, and PRI have all shown potential to derive process-specific information. We propose a session of measuring and modeling photosynthesis and respiration at any scale from the ecosystem to the globe to review recent advances in photosynthesis and respiration. We especially invite studies introducing novel methods that push the boundaries of carbon cycle science.

Primary Convener:  Ian T Baker, Colorado State University, Atmospheric Sciences, Fort Collins, CO, United States
Conveners:  Roisin Commane, Harvard University, Cambridge, MA, United States, Ying Sun, University of Texas at Austin, Austin, TX, United States and Georg Wohlfahrt, University of Innsbruck, Institute of Ecology, Innsbruck, Austria
Chairs:  Ian T Baker, Colorado State University, Atmospheric Sciences, Fort Collins, CO, United States and Roisin Commane, Harvard University, Cambridge, MA, United States
OSPA Liaison:  Ian T Baker, Colorado State University, Atmospheric Sciences, Fort Collins, CO, United States

Cross-Listed:
  • A - Atmospheric Sciences
  • GC - Global Environmental Change
  • H - Hydrology

Abstracts Submitted to this Session:

Joseph A Berry, Carnegie Institution for Science, Stanford, CA, United States, Ian T Baker, Colorado State University, Atmospheric Sciences, Fort Collins, CO, United States, J Elliott Campbell, University of California, Merced, Sierra Nevada Research Institute & College of Engineering University of California, Merced, Merced, CA, United States, Christiaan van der Tol, University of Twente, Enschede, Netherlands, Ari Kornfeld, Carnegie Institution for Science Stanford, Stanford, CA, United States, Tom Avenson, LI-COR Biosciences, Lincoln, NE, United States and Kaiyu Guan, Stanford University, Stanford, CA, United States
Nick Parazoo, Jet Propulsion Laboratory, Pasadena, CA, United States; University of California Los Angeles, JIFRESSE, Los Angeles, CA, United States, Christian Frankenberg, NASA Jet Propulsion Laboratory, Pasadena, CA, United States; California Institute of Technology, Pasadena, CA, United States and Kevin W Bowman, NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Gregory Duveiller, European Commission Joint Research Centre, Ispra Vey, Italy and Alessandro Cescatti, Joint Research Centre Ispra, Ispra, Italy
Loren Albert1, Pilar Vergeli1, Giordane Martins2, Scott R Saleska3 and Travis E Huxman4, (1)University of Arizona, Tucson, AZ, United States, (2)National Institute for Amazon Research (INPA), Manaus, AM, Brazil, (3)University of Arizona, Department of Ecology and Evolutionary Biology, Tucson, AZ, United States, (4)University of California at Irvine, Center for Environmental Biology, Irvine, CA, United States
Ying Sun1, Rong Fu2, Robert E Dickinson1, Joanna Joiner3, Christian Frankenberg4, Lianhong Gu5, Youlong Xia6 and Nelun Fernando7, (1)University of Texas at Austin, Austin, TX, United States, (2)University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States, (3)NASA GSFC, Greenbelt, MD, United States, (4)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (5)Oak Ridge National Laboratory, Oak Ridge, TN, United States, (6)Environmental Modeling Center, College Park, MD, United States, (7)Texas Water Development Board, Austin, TX, United States
Tomomichi Kato1, Katsuto Tsujimoto2, Kenlo Nishida Nasahara3, Tomoko Akitsu3, Keisuke Ono4 and Akira Miyata4, (1)Hokkaido University, Sapporo, Japan, (2)Tohoku University, Sapporo, Japan, (3)University of Tsukuba, Tsukuba, Japan, (4)NIAES National Institute for Agro-Environmental Sciences, Tsukuba, Japan
Xi Yang1, Jung-Eun Lee2, Joe A Berry3, Jianwu Tang4, John F Mustard1, Christiaan Van der Tol5, James R Kellner6 and Carlos Edibaldo Silva1, (1)Brown University, Providence, RI, United States, (2)Brown University, Earth, Environmental and Planetary Sciences, Providence, RI, United States, (3)Carnegie Institution for Science, Global Ecology, Washington, DC, United States, (4)Marine Biological Laboratory, Woods Hole, MA, United States, (5)ITC, Enschede, Netherlands, (6)Brown University, Ecology and Evolutionary Biology, Providence, RI, United States
Richard A Wehr1, Roisin Commane2, Ian T Baker3, J William Munger4, Scott R Saleska5 and Steven C Wofsy4, (1)University of Arizona, Ecology and Evolutionary Biology, Tucson, AZ, United States, (2)Harvard University, Cambridge, MA, United States, (3)Colorado State University, Atmospheric Sciences, Fort Collins, CO, United States, (4)Harvard University, School of Engineering and Applied Sciences, Cambridge, MA, United States, (5)University of Arizona, Department of Ecology and Evolutionary Biology, Tucson, AZ, United States

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