The importance of physiological, structural and trait responses to drought stress in driving spatial and temporal variation in GPP across Amazon forests

Folders contain experimental model runs outlined in Flack-Prain et al., 2019, whereby the (i) LAI, (ii) meteorology, (iii) rooting properties, (iv) soil, and (v) leaf photosynthetic capacity for each plot were alternated to that of all other plots. Plots included in analysis are CAX04, CAX06, TAM05, TAM06, KEN01, KEN02, TAN05 (Tanguro). File names are ordered PLOT1_PLOT2 where PLOT1 is focal plot, and PLOT2 is the plot of the alternated factor. "_down" and "_up" are model runs under upper and lower LAI standard error. file headers are as follows Daily: mod_ET(mm/d) Modelled evapotranspiration mod_LE(MJ/m2/d) Modelled latent energy (latent heat flux) mod_SoilE(mm/d) Modelled soil evaporation mod_can_evap(mm/d) Modelled canopy evaporation (evaporated intercepted rainfall) Soil_WP(MPa) Weighted soil water ptential plant_resistance Plant resistance to waterflow canopy_soil_resistance Canopy weighted soil+root hydraulic resistance to water flow LSC(mmol/m2/s/Mpa) Leaf-soil conductance sapflow(mm/d) Amount of water that moves through LSC continuum mean-LAI(m2m-2) Mean Leaf Area Index Flux: Ra Autotrophic respiration Af Carbon allocated to foliage Aw Carbon alloacted to stem Ar Carbon allocated to roots Acr Carbon allocated to coarse roots Lf Litterfall from foliage Lw Litterfall from stem Lr Litterfall from roots Lcr Litterfall from coarse roots Rh1 Heterotrophic respiration (litter) Rh2 Heterotrophic respiration (soil) D Decomposition G Gross Primary Productivity neesum Net Ecosystem Exchange sumresp total_ET(mm/d) resp_main Maintenance respiration resp_growth Growth respiration resp_l Leaf maintenance respiration resp_s Stem maintenance respiration resp_r Root maintenance respiration resp_cr Coarse root maintenance respiration resp_l_g Leaf growth respiration resp_s_g Stem growth respiration resp_r_g Root growth respiration resp_cr_g Coarse root growth respiration alloc_to_labile Carbon allocated to labile Field data used in model calibration and validation can be accessed via Doughty et al., 2015. Flack-Prain, S., Meir, P., Malhi, Y., Smallman, T. L., & Williams, M. The importance of physiological, structural and trait responses to drought stress in driving spatial and temporal variation in GPP across Amazon forests. https://doi.org/10.5194/bg-2019-175 Doughty, C. E., Metcalfe, D. B., Girardin, C. A. J., Amézquita, F. F., Cabrera, D. G., Huasco, W. H., ... & Feldpausch, T. R. (2015). Drought impact on forest carbon dynamics and fluxes in Amazonia. Nature, 519(7541), 78. doi:10.1038/nature14213