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.

 


Do I Need a Permit?

 Introduction and Key to Plant Communities  

Introduction and Key to Ecosystems

    Seward Soils    Map Unit Summary    Methods    Glossary

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Contact: Mike Gracz
Kenai Watershed Forum 
Homer Field Office
Old Town Professional Center
3430 Main Street Suite B1
Homer, AK  99603
907-235-2218

12 February 2007 15:09