Opened 4 months ago

#779 new enhancement

Different initialization between FM1 and FM2

Reported by: jjeong Owned by: somebody
Priority: minor Milestone: ORCHIDEE 4.3
Component: Anthropogenic processes Version: trunc
Keywords: Cc:

Description

Currently, the model uses quite different initialization schemes for FM1 and FM2.
In FM1, the number of individuals decreases linearly till the number of individuals reaches n_threshold (0.4 now), which will be the beginning of a self-thinning. In FM2, the number of individuals follows a self-thinning line (means decreases exponentially) but that is multiplied by the maximum RDI target (which would be 0.4 for small trees). This results in a higher initial number of trees in FM2 than FM1. And thinning starts when the number of individuals reaches n_threshold.
These different schemes can confuse users, so it'd be better to be simplified or, at least, it needs documentation.

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