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Soil organic

CO. CO. climate. 2. 2. primary production & growth. plant biogeography. soil bio- geochemistry. population. dynamics. & disturbance. Soil organic. Soil organic. matter. matter. Vegetation. vegetation structure. vegetation structure. & PFT composition. & PFT composition.

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Soil organic

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  1. CO CO climate 2 2 primary production & growth plant biogeography soil bio- geochemistry population dynamics & disturbance Soil organic Soil organic matter matter Vegetation

  2. vegetation structure vegetation structure & PFT composition & PFT composition Daily processes soil water soil water soil hydrology soil hydrology content content stomatal stomatal Annual processes conductance conductance biomass allocation biomass allocation & growth & growth net primary net primary photosynthesis photosynthesis production production establishment establishment & mortality & mortality autotrophic autotrophic respiration respiration wildfire wildfire disturbance disturbance ecosystem ecosystem - - heterotrophic heterotrophic atmosphere atmosphere respiration respiration C exchange C exchange tissue tissue turnover turnover leaf & root leaf & root phenology phenology soil organic matter

  3. Vegetation representation in LPJ-GUESS Modelled area (stand) 10 ha - 2500 km2 Average individual for PFT or species cohort in patch crown area crown area replicate patches in various stages of development leaves leaves LAI LAI leaves / LAI leaves / LAI height height sapwood sapwood sapwood stem stem heartwood heartwood heartwood diameter diameter fine fine 0 0 - - 50 cm 50 cm fine roots fine roots roots roots 50 50 - - 100 cm 100 cm tree grass Patch 0.1 ha

  4. H H O O 2 2 temperature, precipitation, radiation, CO2 daily processes daily processes ecosystem state ecosystem state annual processes annual processes biomass allocation biomass allocation soil hydrology soil hydrology soil hydrology & growth & growth Soil water Soil water NPP NPP stomatal stomatal stomatal reproduction reproduction regulation regulation regulation CO CO 2 2 photosynthesis photosynthesis photosynthesis establishment establishment Vegetation structure Vegetation structure and composition and composition plant respiration plant respiration plant respiration mortality mortality CO CO 2 2 Litter Litter leaf & root leaf & root leaf & root fire fire CO CO phenology phenology phenology disturbance disturbance 2 2 Soil organic matter Soil organic matter microbial microbial microbial leaf, root, leaf, root & decomposition decomposition decomposition sapwood turnover bark turnover

  5. Vegetation retranslocation Nleaf Nroot Nsap Ndemand = f (Vmax,∆C,...) Nstore Litter C,N Soil Leaf & wood litter root litter Cohort nitrogen uptake capacity = f(Croot,N:Cplant) metab struct metab struct FWD CWD surface microbial soil microbial Navail N deposition N fixation = f (ET) surface humus slow SOM N leaching N trace gases passive SOM

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