Description of the package  Gimeno_spots_Eter_EucFACE.zip

Gas exchange, water potential and associated meteorological data (including mean atmospheric CO2 concentration of EucFACE treatment rings) collected at the EucFACE experimental site from April 2012 to November 2013. There are four files included in this package:

1) gasExchangeEucFACE6400.csv
2) meanWeekCO2concEucFACE.csv
3) precipVPDdailyEucFACE.csv
4) waterPotentialEucFACE.csv

These files contain all de data included in this publication:

Title:
Conserved stomatal behaviour under elevated CO2 and varying water availability in a 1
mature woodland

Authors list:
Teresa E. Gimeno, Kristine Y. Crous, Julia Cooke, Anthony O'Grady, Anna svaldsson, Belinda E. Medlyn, David S. Ellsworth

Accepted for publication in Functional Ecology on the 14 July 2015

File description:

1) gasExchangeEucFACE6400.csv

This file contains the gas-exchange (CO2 and H2O) parameters and associated meteorological variables (temperature, relate humidity, etc.) measured at the leaf level. These measurements were taken with several LI-COR 6400 cross-calibrated and operating simultaneously (see associated publication for further details on the measurement protocol). This file contains the following variables:

DESCRIPTIVE VARIABLES
Campaign: factor variable with seven levels (2012Apr, 2012May, 2012Oct, 2013Feb, 2013May, 2013Sep, 2013Nov) indicating the year and month of the measurement campaign (see Table S1 in supplementary material of the associated publication for further details).
Measurement: factor variable with two levels indicating the measurement time either mid-morning (Anet_mor) or mid-day (Anet_aft).
CO2_Treat1: factor variable with three levels (amb, plus60, plus150) indicating the CO2 level, of the corresponding ring, at the time of measurements (ambient CO2, 60 and 150 ppm above ambient, respectively).
CO2_Treat2: factor variable with two levels (A for ambient and E for elevated CO2) corresponding to the random allocation to one of the two CO2 treatment levels.
Ring: factor level with six levels (R1, R2, R3, R4, R5, R6) indicating the number of ring (or plot) within the EucFACE facility.
Tree: three digit integer variable indicating the number of tree within the EucFACE facility (the first digit corresponds to the ring number).
Height: numeric variable, distance in m between the ground and the head of the gas-exchange measurement equipment.
Date: date variable (format dd/mm/yyyy) indicated the exact measurement day.
GAS EXCHANGE VARIABLES (measured with the LICOR 6400)
Photo: numeric variable, photosynthesis in micromol CO2/(m2 s)
Cond: numeric variable, stomatal conductance to water in mol H2O/(m2 s)
Ci: numeric variable, leaf internal CO2 concentration in micromol CO2O/mol
Trmmol: numerical variable, transpiration rate in mmol H2O/(m2 s)
VpdL: numerical variable, vapour pressure deficit between the leaf and the atmosphere in kPa
CTleaf: numerical variable, computed leaf temperature in C
Tair: numerical variable, air temperature in C
CO2R: numerical variable, CO2 concentration of the reference cell in micromol CO2/mol
CO2S: numerical variable, CO2 concentration of the sample cell in micromol CO2/mol
H2OR: numerical variable, H2O concentration of the reference cell in mmol CO2/mol
H2OS: numerical variable, H2O concentration of the sample cell in mmol CO2/mol
RH_R: numerical variable, relative humidity of the reference cell in %
RH_S: numerical variable, relative humidity of the sample cell in %
PARi: numerical variable, in-chamber light intensity in micromole/(m2 s)
Press: numerical variable, atmospheric pressure in kPa

2) meanWeekCO2concEucFACE.csv

This file was generated from the EucFACE facility general data (available from the HIEv data-base for authorised users). This file contains the following variables:

Date: date variable (format: dd/mm/yyyy), date of the first day of the week.
CO2_conc: numerical variable, weekly mean atmospheric CO2 concentration of EucFACE rings (or plots) 1, 4 and 5, in micromole CO2/mol

3) Precip_VPD_EucFACE.csv

This file was generated from the EucFACE facility general data (available from the HIEv data-base for authorised users). See associated publication for further details on data collection. This file contains the following variables:

Date: date variable (format: dd/mm/yyyy)
Precip: numerical variables, total daily incoming precipitation at the EucFACE site in mm.
VPDair: numerical variable, mean daily vapour pressure deficit in kPa.

4) waterPotentialEucFACE.csv

This file contains leaf water potential measurements at different times of the day. See associated publication for further details on the measurement protocol. This file contains the following variables:

Campaign: factor variable with six levels (2012May, 2012Oct, 2013Feb, 2013May, 2013Sep, 2013Nov) indicating the year and month of the measurement campaign (see Table S1 in supplementary material of the associated publication for further details).
CO2_Treat1: factor variable with three levels (amb, plus60, plus150) indicating the CO2 level of the corresponding ring at the time of measurements (ambient, 60 and 150 micromol/mol above ambient atmospheric CO2 concentration, respectively).
CO2_Treat2: factor variable with two levels (A for ambient and E for elevated CO2) corresponding to the random allocation to one of the two CO2 treatment levels.
Ring: factor level with six levels (R1, R2, R3, R4, R5, R6) indicating the number of ring (or plot) within the EucFACE facility.
Tree: three digit integer number indicating the number of tree within the EucFACE facility (the first digit corresponds to the ring number).
Measurement: factor variable with three levels indicating the measurement time (Predawn, Moring, Midday)
WP: numerical variable, leaf water potential in MPa.
