Positive effects of smoke come from the increase of carbon dioxide. … Conversely, smoke and ash particles can coat plants inhibiting photosynthesis. Smoke particulates can clog stomatal pores which prevent the gas exchanges required in photosynthesis which decreases the amount of food available to the plant.

How does wildfire smoke affect photosynthesis?

(2020) have found that wildfire smoke creates more diffuse radiation (aka light is scattered throughout the atmosphere), and plants can use this light more efficiently than direct solar radiation. Therefore, photosynthesis can actually increase in these conditions.

How does fire affect photosynthesis?

Particulate matter in wildfire smoke can land on and coat the leaf surface of plants, reducing photosynthesis. … The smoky skies increased the photosynthesis efficiency of the plant canopies, leading to productivity increases.