EcoClimLab / growth_phenology

Cameron Dow's growth phenology project
Creative Commons Attribution 4.0 International
1 stars 2 forks source link

Increased NSC production in previous spring #73

Closed camerondow35 closed 3 years ago

camerondow35 commented 3 years ago

In the latest version of the manuscript, we have this line:

However, extension of our tree-ring analysis showed very little correlation between April $T_{max}$ and growth the following year (5 of 142 RP and 3 of 66 DP species-site combinations), refuting the latter possibility.

Looking at the quilt plots produced from this, I would be weary to say these results totally refute that possibility in RP trees. Even though they aren't significant, there is a general NS positive correlation to previous year growing season temps.

Ring porous: monthly_correlationotherEXTENDEDTMXRP

This sort of feels like it goes hand in hand with what i've read about stem growth being more sensitive to tmax than photosynthesis. Maybe the extra co2 is going partially towards NSC stores and root growth, giving a positive, often NS trend? I'll reword the manuscript to reflect this possibility for now.

teixeirak commented 3 years ago

@camerondow35 , okay... but I feel it's also important to note that the effect, if any, is small. How about the following text?:

"Extension of our tree-ring analysis revealed little correlation between April $T_{max}$ and growth the following year (sig. pos. correlations for 5/142 RP and 3/66 DP species-site combinations, Fig. r EDF_tree_rings_TMAX_extended), although predominantly positive (non-significant) correlations in RP species suggests that this dynamic may weakly influence their annual growth."

camerondow35 commented 3 years ago

I think that's fine

teixeirak commented 3 years ago

okay, then we can close this.