Wetland Classification and Mapping of Seward, Alaska

An extension of wetland classification and mapping of the Kenai Lowland


Map Unit Descriptions


Ecosystem: Depression


Map Units: D34, D43


Seward Area Extent:

D34: 1 wetland polygon; 1.6 acres.

D43: 1 wetland polygon; 0.2 acres.


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Wetland Indicators

Type: Mineral, or peat

Average depth to water table: 20 cm

Organic layer thickness: 20 cm, if mineral soil, 150+ cm if peat

Average depth to redoximorphic features: 8 cm if mineral soil, n/a if peat

Common Soils:  Typic Cryaquods, Typic Cryohemists

Common Plant communities:

D3 Component:

Crowberry - Labrador tea (Empetrum nigrum - Ledum palustre spp. decumbens)

Sphagnum - Ericad (Sphagnum spp. - Ericaceous shrub)

Fewflower sedge - Dwarf birch (Carex pauciflora - Betula nana)

D4 Component:

Mountain hemlock / crowberry (Tsuga mertensiana / Empetrum nigrum)


HGM: Terrene Basin Isolated.


Only one wetland each was mapped as D34 and D43, neither was visited.  These are small peatlands in bedrock depressions not hydrologically connected at or very near the surface with other wetlands.  They have a deeper water table and a forested or woodland component (D4) mixed with a shrubby component (D3).  They were both mapped on the bedrock knob north of Bear Lake.


Do I Need a Permit?

 Introduction and Key to Plant Communities  

Introduction and Key to Ecosystems

   Seward Soils    Map Unit Summary    Methods    Glossary



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

12 February 2007 15:12