Dear authors,

many thanks for your responses. Please provide a revised manuscript according to your answers to the reviewer queries. When doing so, please add a short statement wrt to the reviewer #1 query on the relevance of fluorescence vs Vcmax/Amax to the paper. Please note that the revised manuscript will still undergo editorial review.

Best wishes,
Sönke

Dear authors,

many thanks for your revisions and answers to the reviewer/editor comments. I am happy to accept the manuscript, subject to a couple of minor technical adjustments, as detailed below.

Best wishes,
Sönke

Explain “of precipitation seasonality and timing” in the following sentence (p6 l20f): Mean annual temperature (MAT) and precipitation (MAP), mean winter (PDJF) and summer (PJJA) precipitation and of precipitation seasonality and timing (defined as in Prentice et al., 2011) were calculated for each site.

Page 6 line 25: define growing season for PAR (I guess that’s temperature > 0°C?)

Figure Caption 2: add a reference to Section 2.5 and Harrison et al. 2010 to explain how these were calculated.

Revise Figure 5 to produce legible X-Y axes and legend. Please also consider if you can increase the readability of the X-Y axes and legends for Figure 3-4, which are barely readable.

Table caption 2 and 3: Be specific about which climate variables have been used. Are they only the two parameters for which results have reported, or all?