Predicting photosynthesis and transpiration responses to ozone
نویسندگان
چکیده
Introduction Conclusions References
منابع مشابه
Predicting photosynthesis and transpiration responses to ozone: decoupling modeled photosynthesis and stomatal conductance
Plants exchange greenhouse gases carbon dioxide and water with the atmosphere through the processes of photosynthesis and transpiration, making them essential in climate regulation. Carbon dioxide and water exchange are typically coupled through the control of stomatal conductance, and the parameterization in many models often predict conductance based on photosynthesis values. Some environment...
متن کاملInteractive comment on “Predicting photosynthesis and transpiration responses to ozone: decoupling modeled photosynthesis and stomatal conductance” by D. Lombardozzi et al
This manuscript continues previous work to address the issue of ozone exposure affecting leaf photosynthesis and conductance differentially and how this can be addressed through modifications to the Farquhar/Ball-Berry model. Specifically, the authors consider the implications of these effects when taken into account in a terrestrial ecosystem model. This issue is critical to understanding how ...
متن کاملInteractive comment on “Predicting photosynthesis and transpiration responses to ozone: decoupling modeled photosynthesis and stomatal conductance” by D. Lombardozzi et al
This manuscript continues previous work to address the issue of ozone exposure affecting leaf photosynthesis and conductance differentially and how this can be addressed through modifications to the Farquhar/Ball-Berry model. Specifically, the authors consider the implications of these effects when taken into account in a terrestrial ecosystem model. This issue is critical to understanding how ...
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Tropospheric ozone concentrations have increased by 60-100% in the Northern Hemisphere since the 19(th) century. The phytotoxic nature of ozone can impair forest productivity. In addition, ozone affects stomatal functions, by both favoring stomatal closure and impairing stomatal control. Ozone-induced stomatal sluggishness, i.e., a delay in stomatal responses to fluctuating stimuli, has the pot...
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Net photosynthesis rate (Pn), stomatal conductance (gs) and transpiration rate (E) of anise hyssop were measured during the four cloudless days, in reference to diurnal fluctuations of leaf temperature (Tleaf), leaf vapor pressure deficit (VPD leaf) and photosynthetic photon flux density (PPFD) in well watered (WW), stressed (S) and recovered (R) plants. An analysis of measured data showed tha...
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