This behavior simulates herbivory by allowing trees to grow at different rates when browsed versus unbrowsed.
Parameter name | Description |
---|---|
Asymptotic Diameter Growth (A) | Asymptote of the Michaelis-Menton growth function at high light - function term A below. |
Slope of Growth Response (S) | Slope of the Michaelis-Menton growth function at zero light - function term S below. |
Relative Michaelis-Menton Growth - Diameter Exponent | The exponent to be used with diameter when calculating relative growth. |
Browsed Asymptotic Diameter Growth (A) | Asymptote of the Michaelis-Menton growth function at high light when a plant has been browsed. |
Browsed Slope of Growth Response (S) | Slope of the Michaelis-Menton growth function at zero light when a plant has been browsed. |
Browsed Diameter Exponent | The diameter exponent for growth when a plant has been browsed. |
Trees grow according to the relative growth version of the Michaelis-Menton function. The same function is used for both browsed and unbrowsed trees, but the parameters are different. The function is:
where:
Growth is compounded over multiple timesteps with the equation:
where:
Whether or not a tree is browsed is determined by the Random browse behavior.
This behavior can be applied to seedlings, saplings, and adults of any species. Any tree species/type combination to which it is applied must also have a light behavior and the Random browse behavior applied. You can use either the diam with auto height or diam only version.