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Role of thermodynamic processes in plant leaf gas exchange system for assimilation of CO2 emissions from the ambient air

    Algimantas Sirvydas Affiliation
    ; Tomas Ūksas Affiliation
    ; Paulius Kerpauskas Affiliation
    ; Rasa Čingienė Affiliation

Abstract

When temperature in the leaf gas exchange system changes, the thermodynamic parameters describing the condition of moist air also change. A temperature change of 1 oC in plant leaf tissues leads to a change in partial water vapour pressure of 144 Pa in the gas exchange cavities. Then a temperature decrease of 1 oC in a plant leaf produces 0.897 g of condensate, from 1 m3 of air in leaf ventilation cavities on the surface. When the temperature of plant leaves in the leaf ventilation system changes, the total water vapor state on the inner surface of the leaves changes, and the water vapor state in the stomatal cavities changes. The thickness of the formed condensate film on the plant leaf canal wall surfaces depends on the canal diameter and temperature change. The paper presents information about the mechanism of water formation and thermodynamic processes in the plant leaf gas exchange system participating in the process of assimilation. The formation and change of the internal surfaces of the stomatal cavities of the water film sheet allow the participation of chemical processes in the assimilation of CO2 emissions from the environment.

Keyword : CO2 assimilation process, thermodynamics of a plant leaf, leaf gas exchange system, bionic leaf

How to Cite
Sirvydas, A., Ūksas, T., Kerpauskas, P., & Čingienė, R. (2022). Role of thermodynamic processes in plant leaf gas exchange system for assimilation of CO2 emissions from the ambient air. Journal of Environmental Engineering and Landscape Management, 30(3), 363–369. https://doi.org/10.3846/jeelm.2022.17409
Published in Issue
Sep 22, 2022
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This work is licensed under a Creative Commons Attribution 4.0 International License.

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