On the Modeling of Plant Photosynthesis in the Context of Global Climate Change
Abstract
Among external factors affecting the processes of photosynthesis and photorespiration, the most important are temperature, photosynthetically active radiation, water regime, the regime of mineral nutrition of the plant, and the content of carbon dioxide and oxygen in the surrounding space. In recent decades, there has been an increase of carbon dioxide concentration in the atmosphere and a change in the thermal regime at the scale of the planet. Considering this, the problem of predicting changes in the intensity of plant photosynthesis due to changes of atmospheric carbon dioxide concentration and temperature is topical. Appropriate mathematical models can serve as a basis for predicting the consequences of global climate change. The object of analysis is the model of photosynthesis and photorespiration of С3 plants (by Zhuravleva) that takes into account the main limiting factors. The peculiarity of the model lies in the dependence of photosynthesis intensity on the ratio of atmospheric concentrations: carbon dioxide / oxygen. In this paper, a study of simulated plants behavior under different carbon dioxide and oxygen concentrations in the atmosphere, including critical ones, has been conducted.
DOI 10.14258/izvasu(2017)4-18
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