Canopy photosynthesis in diffuse vs direct sunlight: implications under future climates

We’re delighted that the Academy of Finland has funded a new 4-year project from our group to study, Canopy level photosynthesis under conditions of diffuse and direct sunlight and its implications for light use efficiency by plants under future climates.

Both climate change and it potential solutions involving climate manipulations cause shifts in direct and diffuse sunlight that plant canopies receive (e.g. under clouds or aerosols). Photosynthesis at the whole-canopy scale is more efficient under diffuse than direct light; as diffuse radiation penetrates further into the canopy. But we lack knowledge of how canopies adjust to receiving diffuse radiation and the mechanisms as allow greater efficiency in light use.

Knowledge of canopy-level light use efficiency are of both ecological and practical value: these data provide input to models of global carbon assimilation and can be useful in crop improvement.

We will develop this project with collaborators:
Titta Kotilainen (LUKE senior scientist)
Pedro Aphalo  (OEB, University of Helsinki)
Anders Lindfors and Anu Heikkilä (FMI)
Sasha Madronich (National Center for Atmospheric Research, USA)
Otmar Urban (CzechGlobe)
Alexey Shapiguzov (OEB, University of Helsinki)
Sharon Robinson (University of Wollongong, Australia)
Erik Murchie (Nottingham Univ., UK)
Twinkle Solanki & Jon Atherton (University of Helsinki)

 

One Reply to “Canopy photosynthesis in diffuse vs direct sunlight: implications under future climates”

Leave a Reply

Your email address will not be published. Required fields are marked *