DO_DorovanDO-Dorovan soils.
These nearly level, very poorly drained soils are in bays and in long, broad areas of tidal and stream flood
plains. All of the acreage is used for woodland and as wildlife habitat. The native vegetation is red maple,
willow, tupelo, cypress, sweetgum, ash, American cyrilla, and greenbrier.
Typically the surface layer is black muck 4 inches thick.
The underlying layer, to a depth of 64 inches, is black or very dark gray muck.
Included with these soils in mapping are small areas of Johnston soils and Tidal marsh. A few small areas
of soils that have thin, continuous mineral layers are also included.
The organic-matter content in the surface layer is very high. Permeability is very slow, available water
capacity is very high, and shrink-swell potential is low. Reaction is very strongly acid or strongly acid
throughout, unless the soils are limed. The seasonal high water table is at or near the surface. These soils
are frequently flooded for very long periods.
Flooding and high organic-matter content are the main limitations in the use and management of these
soils. If these soils are drained and tilled, the organic matter decomposes, and the soil subsides. Capability
subclass VIIIw; woodland group 4w.