To transform atmospheric CO2 into organic molecules, plants can use the energy from
Early spring is a tricky time for plants due to the combination of sunny but still quite cold days.
Transpiration decreases as air becomes drier.
Almost half of the total biomass of a tree may be allocated to the roots.
De-hardening in spring involves gradual re-hydration of the cells, recovery of photosynthetic capacity and a tight control of water loss.
When there is low soil moisture, plants close its stomata pores which then decreases photosynthesis.
In general, the more carbon dioxide that is available to the plant, the faster the rate of photosynthesis - if other factors are favourable.
Carbon capture is performed by the green parts of plants via photosynthesis.
Photoinhibition means the decrease in photosynthesis due to
exposure to excess of light.
exposure to high temperature.
exposure to shortage of soil moisture.
exposure to excess of CO2.
exposure to excess of light
exposure to excess of CO2
exposure to high temperature
exposure to shortage of soil moisture
What is the source of carbon that is assimilated in photosynthesis?
Photosynthesis of a tree canopy is driven or influenced by
air temperature (T).
soil moisture (REW).
photosynthetically active solar radiation (PAR).
the total leaf area (LAI).
air humidity (VPD).
Leaf area increases with stand age, resulting in a decreasing rate of photosynthesis in the stand.
An increment in leaf area increases also the photosynthesis of a tree stand. However, the relationship is saturating.
A complex microbiota lives belowground, releasing carbon dioxide to the soil.
The effect of light on photosynthesis has a clear saturating pattern: more light results in more photosynthesis but eventually leaves cannot take full advantage of all the extra light.
The rate of respiration decreases with temperature.