With the addition of #812, we now have per-PFT propagules in the PlantsModel , so we need to germinate those and add new tree cohorts.
- Add initial values for the PFT propagule pool to the required data in the model.
- Add a germination rate to convert propagules into new tree cohorts. This should be per PFT, but it can probably start life as a PlantsModel constant like the mortality rate.
- Add those cohorts to the plant communities.
- Worry about the separation of the subcanopy vegetation and the seedlings. The light environment of these two different groups matters a lot to seedling success. If we go with an infinitely thin algal mat model for the subcanopy vegetation, then all seedlings are instantly above the subcanopy. That's easy and wildly inaccurate.
- Whilst we're in this cycle, check to see if empty cohorts are removed following mortality. I don't think they are at present.
With the addition of #812, we now have per-PFT propagules in the
PlantsModel, so we need to germinate those and add new tree cohorts.