8000 GitHub - yunkepeng/lt_cn_review: Analyses of the review paper on C-N modelling by the LEMONTREE N cycle WG.
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lt_cn_review

Analyses of the review paper on C-N modelling by the LEMONTREE N cycle WG.

Paper outline

... and what analysis fits in where

Global carbon cycle and vegetation changes

  • TRENDY C sink trend analysis (analysis code file to be added here, -> Beni)

Experiments and field data insights

vignettes/analysis_leafn_vcmax_field.Rmd

  • Field leaf N and Vcmax vs global map-based soil C:N using Ning Dong's dataset. Implemented in
  • Data aggregated to PFTs and comparison to P-model estimates and to veg model prescribed values (STILL MISSING, -> Ning, could you add code to his file?)
  • Field leaf N and Vcmax vs global measured soil C:N, TROBIT data analysis: STILL MISSING (-> Yunke)
  • Ellsworth data analysis not possible due to missing longitude and latitude information.

vignettes/analysis_nfert_liang.Rmd

  • STILL MISSING
  • Analysing effect size magnitudes in N fertilisation experiments: Nmass > Narea (> PNUE) > Vcmax. Separate control on LMA, influential for Nmass. (-> Evan)

vignettes/analysis_mesi.Rmd

  • (analysis code file to be added here, -> Beni)
  • Allocation shift towards more belowground C allocation with consequence of stimulated soil decomposition and N uptake
  • N fert triggers opposite?
  • warming: decreasing Vcmax25 (although net mineralisation should be enhanced → not supply-driven)
  • light: increasing Vcmax (although NPP and Nuptake should be enhanced → not dilution-driven)

Confronting alternative models with observational benchmarks

  • Analysis to be added -> Beni, Pascal

Long-term dynamics of N limitation

  • Analysis to be added -> Beni, Pascal

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