soo... how about compost making?
as it stands now, there are soil sinks, but no way to make new soil, so technically, soil is now a finite resource, as far as i know
So how about allowing us to put biological material(apple cores, branches, barks, etc etc) into a compost bin to make soil? q can be affected by q of bin and material input, while adding a new dimension for soil gathering, and breaking monopoly of people who have soil nodes.