Re: Subaqueous soil hydroperiods

Another example of where we are considering whether subaqueous soils apply is the estuary-like Great Lakes marshes. These wetlands have hydroperiods of decades combined with the normal annual and daily storm-surge fluctuations, based on the levels of the Great Lakes. In some cases the emergent vegetation may be pretty deep. I don't know if such emergents are established on exposed bottoms at low water or if they are able expand to deeper waters vegetatively.