REW stands for "Relative Extractable Water"
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.
Eftersom koldioxid kommer in i växten genom klyvöppningarna går assimilationen långsammare då klyvöppningarna tillsluts.
Photosynthesis of a shoot can be measured by enclosing it within a chamber and following the change of
carbon dioxide concentration in the air of this chamber.
air temperature in this chamber.
water vapour concentration in the air of this chamber.
PAR radiation next to the chamber.
Plants open its stomata to avoid losing too much water.
Plant closes its stomata to avoid losing too much water.
When there is low soil moisture, plants close its stomata pores which then decreases photosynthesis.
"Stage of acclimation" refers to the seasonality of
the litter fall activity.
the flowering activity.
the photosynthetic activity.
the growth activity.
Photosynthesis shuts down if the temperature of previous night has been lower than
Since stomata are the same pores through which carbon dioxide enters into the leaves, the result of their closure is a reduction in photosynthesis.
In trees, approximately half of the carbon bound in photosynthesis is used for construction of new biomass.
High soil moisture leads to decreased photosynthesis.
In boreal upland forests, low soil moisture decreases the rate of photosynthesis.
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
Respiration is a cellular process to obtain chemical energy from
the oxidation soil nutrients.
the oxidation of organic molecules.
the oxidation of water.
the oxidation of plant tissues.
As VPD increases, photosynthesis decreases due to the closure of the stomata.
Då VPD ökar blir assimilationen långsammare eftersom växten tillsluter sina klyvöppningar.