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Wetland Classification and Mapping of the Kenai Lowland, Alaska
Map Unit Descriptions Ecosystem: Discharge Slope White Spruce Complexes: SGM; SMG; SGA; SGS; SAG
Extent: SGM: 4 wetland polygons; 83.5 ha; 0.06% of wetland area; 0.02% of wetland polygons. SGA: 3 wetland polygons; 64.3 ha; 0.05% of wetland area; 0.02% of wetland polygons. SMG: 4 wetland polygons; 26.4 ha; 0.02% of wetland area; 0.02% of wetland polygons. SGS: 3 wetland polygons; 12.7 ha; 0.01% of wetland area; 0.02% of wetland polygons. SAG: 1 wetland polygon; 3.8 ha; 0.00% of wetland area; 0.01% of wetland polygons. |
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 The single SAG wetland, adjacent to a small relict glacial lakebed complex near the City of Kenai (polygon 8432). |
Wetland Indicators Type: Mineral Soil Average depth to water table: SG: n/a SA: 25.2 cm; n=5 SM: 39.7 cm; n=7 SS: 31.1 cm; n=13 Organic layer thickness: SG: 5.0 cm ; n=1 SA: 105.3 cm; n=6 SM: 48.0 cm; n=6 SS: 44.5 cm; n=14 Average depth to redoximorphic features: SG: n/a SA: 30.8 cm; n=4 SM: n/a SS: 26.1 cm; n=7 Common Soils: SG: KALIFONSKY SA: STARICHKOF, SPENARD, NIKOLAI, BELUGA SM: CLAM GULCH SS: STARICHKOF Common Plant communities: SG component: White spruce communities are undefined. White spruce occasionally replaces Lutz spruce in the following community: Lutz spruce / Barclay's willow / Bluejoint SM component: Black spruce / Woodland horsetail - Labrador tea (Black spruce / Barclay's willow / Field horsetail) Black spruce / Crowberry - Lingonberry Black spruce / Field horsetail - Dwarf birch
SA component: SC component: |
| Accuracy assessment: Only a single polygon interpreted as SGM on aerial photographs was field checked. It was revised to WU. | |
Many of these wetlands occupy narrow slopes above a large lakebed complex located between Kalifonsky Beach Road and the Sterling Highway near Kasilof. White spruce mixing with black spruce (Picea mariana) is the most common complex (SMG or SGM), and a few of these also occur at the edge of the interlobate moraine, between Soldotna and Sterling. A single thinleaf alder (Alnus incana ssp. tenuifolia) / white spruce complex lies along the slope of a smaller lakebed complex near the City of Kenai.
