search

forc-db / Global_Productivity

Creative Commons Attribution 4.0 International
2 stars 0 forks source link

Yu et al. 2014? #120

Closed beckybanbury closed 3 years ago

beckybanbury commented 3 years ago

R1 cites Yu et al. (2014), but it isn't fully cited. Do you know what this paper is? I've found this which I think is the most likely candidate: https://www.pnas.org/content/111/13/4910.short

@teixeirak

teixeirak commented 3 years ago

Yes, that's the one.

beckybanbury commented 3 years ago

@teixeirak this paper finds that NEP of east Asian subtropical forests (mostly southern China) is higher than forests at comparable latitudes in Europe and the US, and also higher than east Asian tropical and temperate forests. It suggests that this is because of the age of these forests (many are young plantation forests + the average forest age is lower than those measured at other latitudes), and high nitrogen deposition.

So it seems that this paper supports what we have done with standardising for forest age and fertilisation. Do you think there is some confusion with the reviewer as to the overall aim of our study + we should clarify further that this is to look at patterns in mature forest, noting that forest age is a strong factor in determining productivity?

teixeirak commented 3 years ago

It's a bit funny because the reviewer is really criticizing the previous studies finding that “net primary productivity of temperate forests rivals that of tropical forests”. Really, the reviewer's comment reinforces the need for standardization. I believe the studies claiming that temperate forest NPP rivals that of tropical forests have already been discredited for the most part, but a high-profile, authoritative synthesis controlling for forest age will definitely help solidify this understanding.