1 / 5

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.

ldunn
Download Presentation

Soil organic

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  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

More Related