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ERTH Seminar Series: Dr. Troy Magney, UC Davis, THE BIOLOGICAL BASIS FOR USING OPTICAL SIGNALS TO TRACK EVERGREEN NEEDLE PHOTOSYNTHESIS ACROSS SCALES
Wednesday, May 3, 2023, 1–2 p.m.
Science Building (SCI) 4th floor open-space
THE BIOLOGICAL BASIS FOR USING OPTICAL SIGNALS TO TRACK EVERGREEN NEEDLE PHOTOSYNTHESIS ACROSS SCALES DR. TROY MAGNEY, UC DAVIS Evergreen needleleaf forests (ENFs) play a sizable role in the global carbon cycle, but the biological and physical controls on ENF carbon cycle feedbacks are poorly understood and difficult to measure. To address this challenge, a growing appreciation for the stress physiology of photosynthesis has inspired emerging techniques designed to detect ENF photosynthetic activity with optical signals. Here, I will summarize how fundamental plant biological and biophysical processes control the fate of photons from leaf to globe, ultimately enabling remote estimates of ENF photosynthesis. To do this, I will show data across four ENF sites spanning a broad range of environmental conditions and link leaf- and stand-scale observations of photosynthesis (i.e., needle biochemistry and flux towers) with tower- and satellite-based remote sensing. The multidisciplinary nature of this work can serve as a model for the coordination and integration of observations made at multiple scales by scientists from different fields.
Todd Greene 530-898-5546