Gas_exchange.csv

Beschreibung

Mean values taken for each tree across the growing season. Measurements were taken diurnally (~1 measurement/hr) with a Licor LI6800 matching ambient chamber conditions on 4 days during the growing season (1 day in June, July, August, September).

• Number of variables: 11
• Number of cases/rows: 48
• Variable List:
• TreeID: Unique identifier for individual trees
• Chamber: open-top-chamber ID
• Species: Tree species
• Treatment: chamber abiotic treatment (C = control, H = heated, RM = reduced soil moisture, H_RM = heated and reduced soil moisture)
• Heating: Yes or no
• RM: Reduced soil moisture, yes or no
• gsw.mean: Mean stomatal conductance to water vapor (mol m^-2 s^-1)
• gsw.mean: Mean stomatal conductance rate (mol m^-2 s^-2)
• Tdiff.mean: Mean difference between leaf and air temperature on the day of Licor measurements
• lngsw.mean: Mean of the natural log of stomatal conductance
• lngsw.mean~Tdiff.mean_slope: The slope of the linear least-squares relationship between the natural log of lngsw.mean and Tdiff.mean