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Leaf 'sweat glands' to worsen future flooding
Leaf 'sweat glands' to worsen future flooding
Tiny pores on the surface of plant leaves that are sensitive to carbon dioxide may contribute significantly to future flooding as a result of increasing atmospheric pollution. picked by misswinkle 1 year ago
tags stomata leaf pores sweat glands worsen future flooding
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 pocksuck...
1 year ago
An odd logic at play here from the researchers.

Stomata regulate the uptake of CO2 by the plant by altering the aperture size. If the levels of atmospheric CO2 rise and the stomatal aperture size decrease proportionately then the amount of CO2 uptake remains a constant.

Plants will not reduce their transpiration because there is more CO2 available to them. Transpiration is a direct function of their metabolism, and this will not be affected.

For a parallel example, in a rarified atmosphere, a human will take more breaths than in an oxygen rich atmosphere, but the amount of oxygen extracted will remain the same overall.

All that is happening here the plants are taking shallower breaths because there is more CO2 in each stomata-full.

Applying Occam's Razor to their findings, I would say that as global temperatures have increased over the same time span, the rate of evaporation from large water bodies (which is temperature dependent) has increased. More evaporation means more atmospheric water vapour which means more rain. More rain means more water running into rivers, which by definition means more river flow.

Seems more likely to me, anyway.
39
quote #2
17
 misswink...
1 year ago
« pocksucket : An odd logic at play here from the researchers.

Stomata regulate the uptake of CO2 by the plant by altering the aperture size. If the levels of atmospheric CO2 rise and the stomatal aperture size decrease proportionately then the amount of CO2 uptake remains a constant.

Plants will not reduce their transpiration because there is more CO2 available to them. Transpiration is a direct function of their metabolism, and this will not be affected.

For a parallel example, in a rarified atmosphere, a human will take more breaths than in an oxygen rich atmosphere, but the amount of oxygen extracted will remain the same overall.

All that is happening here the plants are taking shallower breaths because there is more CO2 in each stomata-full.

Applying Occam's Razor to their findings, I would say that as global temperatures have increased over the same time span, the rate of evaporation from large water bodies (which is temperature dependent) has increased. More evaporation means more atmospheric water vapour which means more rain. More rain means more water running into rivers, which by definition means more river flow.

Seems more likely to me, anyway.
My thoughts exactly!
16
quote #3
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