Abstract

Canopy photosynthetic CO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> uptake rate, instead of leaf photosynthetic CO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> assimilation rate, correlates with biomass production. We aim to develop a fully integrated model of canopy photosynthesis, which includes not only the prediction of the microclimates inside a canopy but also the related biophysical and biochemical processes in a leaf. Here we report our current status of the model of canopy photosynthesis, which includes the plant architecture, a ray-tracing algorithm, leaf energy balance and leaf level photosynthesis. The details of the modules involved in the model are described in this article. We also demonstrated its application by simulating a diurnal canopy photosynthesis rates.

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