forc-db / Global_Productivity

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Exploring ANPP_foliage and ANPP_woody patterns #10

Closed beckybanbury closed 5 years ago

beckybanbury commented 5 years ago

@teixeirak I've been looking more closely at the relationship of ANPP_foliage and ANPP_woody variables with climate. I've done some analysis on the data that we have where ANPP_foliage or ANPP_litterfall (amalgamated to ANPP_canopy) were measured in the same survey as ANPP_woody_stem. I paired the observations to analyse them. This graph shows ANPP_canopy plotted against ANPP_woody_stem for different biomes, and indicates that patterns of allocation seem to be varying between biomes. I tried to look into this more by taking a ratio of ANPP_canopy:ANPP_woody_stem and plotting this against climate variables in linear models and a mixed model (identical to the one we have used for the other analysis). The results are here and here. Summary tables are here. As you can see, the p-values for many of them are significant, but R-squared values are low. I'd be interested to get your feedback on this, and whether you think this analysis is worth exploring further.

teixeirak commented 5 years ago

I think we can close this.