Journal
GLOBAL CHANGE BIOLOGY BIOENERGY
Volume 1, Issue 4, Pages 282-296Publisher
WILEY
DOI: 10.1111/j.1757-1707.2009.01019.x
Keywords
bioenergy; biofuels; crop models; M. x giganteus; mathematical modeling; Miscanthus; WIMOVAC
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Biomass based bioenergy is promoted as a major sustainable energy source which can simultaneously decrease net greenhouse gas emissions. Miscanthus x giganteus (M. x giganteus), a C-4 perennial grass with high nitrogen, water, and light use efficiencies, is regarded as a promising energy crop for biomass production. Mathematical models which can accurately predict M. x giganteus biomass production potential under different conditions are critical to evaluate the feasibility of its production in different environments. Although previous models based on light-conversion efficiency have been shown to provide good predictions of yield, they cannot easily be used in assessing the value of physiological trait improvement or ecosystem processes. Here, we described in detail the physical and physiological processes of a previously published generic mechanistic eco-physiological model, WIMOVAC, adapted and parameterized for M. x giganteus. Parameterized for one location in England, the model was able to realistically predict daily field diurnal photosynthesis and seasonal biomass at a range of other sites from European studies. The model provides a framework that will allow incorporation of further mechanistic information as it is developed for this new crop.
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