gas exchange data

This file provides details on rates of gas exchange made at the time of the second harvest. The first six columns are just as in the biomass data file. 'Area' represents the leaf area measured for photosynthetic rate in the cuvette, in cm^2. 'N' leaf nitrogen concetration, on a mass basis, in percent. 'thickness': leaf blade thickness, in micrometers. 'LMR' leaf mass ratio. 'Lcp' Light compensation point - the amount of light (in µmol m-2·s-1) at which photosynthesis is zero. 'Amax': the predicted maximal rate of photosynthesis per unit area in CO2·m-2·s-1. SLA_photo: specific leaf area, 'Amass': predicted maximal photosynthetic rate per unit leaf biomass in nmol CO2·g-1·s-1.