Acronym Explanation Unit Sites
A Photosynthetic rate at 1000 μmol m-2 s-1 PAR μmol CO2 m-2 s-1 +0°C, +3°C
R Night respiration rate μmol CO2 m-2 s-1 +0°C, +3°C
GS Stomatal conductance during the day mmol CO2 m-2 s-1 +0°C, +3°C
E Transpiration durign the day mmol H2O m-2 s-1 +0°C, +3°C
WUEint Intrinsic water use efficiency, A/GS +0°C, +3°C
WUEinst Instantenious water use efficiency, A/E Instantenious water use efficiency, A/E +0°C, +3°C
GSnight Stomatal conductance during the night mmol CO2 m-2 s-1 +0°C, +3°C
Enight Transpiration durign the night mmol H2O m-2 s-1 +0°C, +3°C
Topt Optimal tenperaure for photosynthesis °C +0°C
Ω The temperature range when photosynthesis is above zero °C +0°C
Q10 The increase in respiration rate as temperature increases 10°C μmol CO2 m-2 s-1 +0°C
LMA Leaf mass per area mg/mm2 +0°C, +3°C
LA Leaf area cm2 +0°C, +3°C
LT Leaf (lamina) thickness mm +0°C
LDMC Leaf dry matter content % +0°C
C Leaf carbon content % +0°C
N Leaf nitrogen content % +0°C
C:N Leaf carbon to nitrogen ratio +0°C
PNUE Photosynthetic nitrogen use efficiency μmol CO2 g-1 s-1 +0°C
height Height of plants without including reproductive parts mm +0°C
width Horizontal width of the aboveground plant mm +0°C
Rootd The depth of the root system mm +0°C
Rootw Maximum horizontal distance of a root from the rooting point mm +0°C
CSI Canopy shape index: lateral spread of the canopy / height ranges from values close to 0 for erect plants to >> 1 for postrate plants +0°C
δ13C Carbon isotope ratio of leaf celluloce All sites
δ18O Oxygen isotope ratio of leaf celluloce All sites
δ18Oenrich d18O enrichment over the source water All sites
depth Soil depth from which the plant is taking water, average across the four sites cm All sites
PI Plasticity index of the corresponding trait ranges from values 0 (no plasticity) to 1, or negative values indicating reduced trait in the treatment compared to control.