40. Little Sewickley Creek 2

General Information

Reference Number: 40
State: Pennsylvania
County: Allegheny
Municipality: Sewickley
USGS Quad: Ambridge
Watershed: Little Sewickley Creek
Hydrogeomorphic Class: Headwater floodplain
Disturbance Class: Moderate
Dominant Vegetation Class: PFO/PEM
Wetland Area: 0.2 ha (0.4 ac)
Year(s) Sampled: 1995

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Vegetation

Herbaceous
Percent Cover: 74.0% (range 60-80%)
Dominant Species
Common Name Scientific Name
Rough bedstraw Galium asprellum
Garlic mustard Alliaria officinalis
False Mermaid weed Floerkea proserpinacoides
Spotted touch me not Impatiens capensis
Ground ivy Glechoma hederacea
Woody
Percent cover: 63.0% (range 15-100%)
Dominant Species
Honeysuckle Lonicera tatarica
Hawthorn Crataegus sp.
Black cherry Prunus serotina
American sycamore Platanus occidentalis
American elm Ulmus americana
Weighted Indicator Status (dominant species)
Herbaceous: 2.57
Woody: 3.20
Weighted Indicator Status (all species)
Herbaceous: 2.60
Woody: 3.07
Species Richness
Total: 49
Herbaceous: 37
Woody: 12

Soils

Matrix Chroma (mean): 2.0
Organic Matter (mean %): 35.30
Bulk Density (g/cm2): 0.16
Soil Series: Hagerstown silt loam
Texture (mean %)
Sand: 60.8
Silt: 21.3
Clay: 17.9
Sedimentation Rate
Mineral loading (g/cm2): NA
Equivalent depth (cm): NA
Organic loading (g/cm2): NA

Hydrology

Water Level
Median (cm): NA
Range (cm): NA
Water Quality
pH (mean): NA
Conductivity (mean): NA