schemas/VegCore/VegCore.ERD.mwb: require rel_place to have a parent place. merge plot_element into subplot because subplot is the only place the parent_plot constraint is imposed (individuals can now be located in any place, not just a plot).
schemas/VegCore/VegCore.ERD.mwb: require rel_place to have a parent place. merge plot_element into subplot because subplot is the only place the parent_plot constraint is imposed (individuals can now be located in any place, not just a plot).