Plants open its stomata to avoid losing too much water.
Plant closes its stomata to avoid losing too much water.
"Stage of acclimation" refers to the seasonality of
the flowering activity.
the photosynthetic activity.
the litter fall activity.
the growth activity.
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.
As VPD increases, photosynthesis decreases due to the closure of the stomata.
Då VPD ökar blir assimilationen långsammare eftersom växten tillsluter sina klyvöppningar.
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.
Photosynthesis shuts down if the temperature of previous night has been lower than
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 excess of light.
exposure to excess of CO2.
exposure to shortage of soil moisture.
exposure to high temperature.
REW stands for "Relative Extractable Water"
High soil moisture leads to decreased photosynthesis.
In boreal upland forests, low soil moisture decreases the rate of photosynthesis.
Respiration is a cellular process to obtain chemical energy from
the oxidation of organic molecules.
the oxidation of plant tissues.
the oxidation soil nutrients.
the oxidation of water.
The air is moist if VPD (Vapour Pressure Deficit) is high.
Låga växter, mikroberna i marken och markens funktioner i allmänhet drar under vintern nytta av.
Välj ett alternative.
trädens långsammare aktivitet
snöns isolerande inverkan
den ringa mängden solljus
de låga temperaturerna
Since stomata are the same pores through which carbon dioxide enters into the leaves, the result of their closure is a reduction in photosynthesis.