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Parameter tuning

Parameter tuning. Tuning parameters. Establishment rate. Mortality. Tuning method. So that these two distribution can be expresed. Tree density. Mortality. DBH* class. DBH* class. *DBH: Diameter at Breast Height. Size structure. Total biomass. Competition among size class.

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Parameter tuning

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  1. Parameter tuning

  2. Tuning parameters Establishment rate Mortality Tuning method So that these two distribution can be expresed Tree density Mortality DBH* class DBH* class *DBH: Diameter at Breast Height

  3. Size structure Total biomass Competition among size class Tree density Mortality DBH class DBH class Growth rate for each DBH class Most fundamental properties of the production and dynamics can be captured by this method

  4. Tuning results Boreal needle-leaved evergreen wood Observed Simulated Shiretoko1 (1.25ha, 6yrs) Shiretoko2 (2.25ha, 6yrs) (0.09ha×20) Tree density (N per ha) Mortality (prop. per year) DBH class (5cm interval)

  5. Tuning results Temperete broad-leaved evergreen wood Observed Simulated South Kyushu1 (0.44ha, 5yrs) South Kyushu2 (1ha, 5yrs) (0.09ha, 300yrs) Tree density (N per ha) Mortality (prop. per year) DBH class (5cm interval)

  6. Preliminary Results

  7. Simulation sites South Kyushu Shiretoko Annual mean temp. 18.2c Annual precipitation 1197mm Annual mean temp. 7.3c Annual precipitation 769mm

  8. Changes in Leaf Area Index(annual maximum in m2 m-2) @ Shiretoko Woody PFTs Grass PFTs @ Kumamoto Woody PFTs Grass PFTs 1~500 yr simulation

  9. Changes in carbon pool(Kg Carbon m-2) @ Shiretoko Soil Tree biomass Grass biomass @ Kumamoto Tree biomass Soil Grass biomass 1~500 yr simulation

  10. Changes in annual NEP(g Carbon m-2 year-1) carbon uptake carbon emission @ Shiretoko carbon uptake carbon emission @ Kumamoto 1~500 yr simulation

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