Datasheets & Protocol: Concrete soil (or similar) is problematic to our database
Concrete. The question came up as to drainage category for
impermiable surfaces such as concrete, or more realistically hard-packed
clay. The Manual makes reference to a gley-horizon for poorly drained, yet
hard clay recently modified by construction equipment will not be gleyed.
Action Item: Forbes will research this in the USDA Soil Survey literature
and report back. Changes will be proposed to the group and ultimately
implemented by Michael.