...

For example, we are recording storm damage as observations on the parameters proportion and age with the theme as (disturbance) storm damage. I think the correct way should be, the parameters are age of storm damage and proportion of storm damage and the theme is just disturbance. See page 138 of the CORVEG manual.

Ground cover calculations

Ground cover should be modelled more explicitly. Maybe we can model ground cover as an observation collection For example, bare, rock, cryptogam, etc are individual atomic observations within an observation collection. Currently, everything is atomic and has no relation.