Terrestrial biosphere models may overestimate Arctic CO 2 assimilation if they do not account for decreased quantum yield and convexity at low temperature

What is it about?

Models which seek to represent Arctic photosynthesis and predict the response of the Arctic to a changing climate assume that the response of photosynthesis to light does not change with temperature. We show that key parameters associated with the light response are decreased at low temperature. Models that do not account for this observation will likely overestimate carbon dioxide assimilation by Arctic plants.

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