When there is low soil moisture, plants close its stomata pores which then decreases photosynthesis.
As VPD increases, photosynthesis decreases due to the closure of the stomata.
In trees, approximately half of the carbon bound in photosynthesis is used for construction of new biomass.
Photoinhibition means the decrease in photosynthesis due to
exposure to shortage of soil moisture.
exposure to excess of CO2.
exposure to high temperature.
exposure to excess of light.
The air is moist if VPD (Vapour Pressure Deficit) is high.
Since stomata are the same pores through which carbon dioxide enters into the leaves, the result of their closure is a reduction in photosynthesis.
Eftersom koldioxid kommer in i växten genom klyvöppningarna går assimilationen långsammare då klyvöppningarna tillsluts.
REW stands for "Relative Extractable Water"
Respiration is a cellular process to obtain chemical energy from
the oxidation of plant tissues.
the oxidation of organic molecules.
the oxidation soil nutrients.
the oxidation of water.
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.
The stage of acclimation at any given day depends on the temperatures experienced by the plant during the previous months.
The stage of acclimation at any given day depends on the temperatures experienced by the plant during the previous days.
Photosynthesis shuts down if the temperature of previous night has been lower than
Låga växter, mikroberna i marken och markens funktioner i allmänhet drar under vintern nytta av.
Välj ett alternative.
de låga temperaturerna
den ringa mängden solljus
trädens långsammare aktivitet
snöns isolerande inverkan
Plants open its stomata to avoid losing too much water.
Plant closes its stomata to avoid losing too much water.
High soil moisture leads to decreased photosynthesis.
In boreal upland forests, low soil moisture decreases the rate of photosynthesis.