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Determination of constants of a Two-Leaf multi-scale photosynthesis model using a genetic algorithm

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2007 ASAE Annual Meeting  072168.(doi:10.13031/2013.23372)
Authors:   Glen K Menezes, Luis F Rodriguez
Keywords:   Photosynthesis, multi-scale modeling, genetic algorithms

Photosynthesis is a well studied process and has been simulated at different scales using mechanistic or empirical (or semi-mechanistic) models. Here we have presented a modified Two–Leaf model of photosynthesis which is a canopy scale model underpinned by a biochemical leaf model. The biochemical model is based on enzyme kinetics and is mechanistic while the canopy model uses a numerical integration scheme and is empirical. This model calculates the change in Leaf Area Index (LAI) during life span of the plant and simulates growth with increase in LAI and senescence with reduction in LAI. Thus the Daily Carbon Gain (DCG) of the plant can be determined from emergence to senescence.

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