Nitrogen (N) is essential for plant growth and might progressively limit the fertilization effect of elevated atmospheric CO2 (eCO2), which affects predictions of future land carbon (C) uptake and storage. Within the present thesis, I develop a dynamic N acquisition model that allows plants to actively invest C into different symbiotic N acquisition strategies, i.e. N fixation and mycorrhizal fungi, to overcome N limitation. Simulations show that symbiotic N acquisition strategies improve N nutrition, and increase plant growth under eCO2 in short- and long-term simulations, which affects land C uptake and storage positively.
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Nitrogen (N) is essential for plant growth and might progressively limit the fertilization effect of elevated atmospheric CO2 (eCO2), which affects predictions of future land carbon (C) uptake and storage. Within the present thesis, I develop a dynamic N acquisition model that allows plants to actively invest C into different symbiotic N acquisition strategies, i.e. N fixation and mycorrhizal fungi, to overcome N limitation. Simulations show that symbiotic N acquisition strategies improve N nutr...
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