Wetland Classification and Mapping of Seward, Alaska An extension of wetland classification and mapping of the Kenai Lowland   Map Unit Descriptions   Ecosystem: Depression   Map Component: D1   Seward Area Extent: 8 wetland polygons; 6.6 acres.

 

A  D1 lake east of Bear Lake.

Wetland Indicators Type: Mineral or Peat under a lake or pond Average depth to water table: Water table above the surface Organic layer thickness: n/a Average depth to redoximorphic features: n/a Common Soils: n/a- Open Water Common Plant communities: Open water, with the obligate pond lily (Nuphar lutea) and other obligate emergents, such as  pondweed (Potomageton spp.) or Carex saxatilis L.   NWI: L2OW,AB4,3 HGM: Isolated Natural Lake

 

D1 is the map component in a depressional wetland dominated by standing water, including areas where the vegetation is emergent (rooted underwater, but growing above the surface).  Most commonly these are small ponds in bedrock depressions not connected at or very near the surface with other wetlands.  This component is most commonly found as a distinct unit, but it is also found in a concentrically arranged complex.  Concentric complexes include other depression map components, such as D2 and D3.  For example, a pond (D1) in the center of a depression, ringed by a sedge dominated component (D2), then a shrub or bluejoint grass (Calamagrostis canadensis) dominated component (D3) would be named a D1-3 wetland.