21. Marsh Creek – PEM

General Information

Reference Number: 21
State: Pennsylvania
County: Chester
Municipality: Upper Uwchlan
USGS Quad: Wagontown
Watershed: Brandywine
Hydrogeomorphic Class: Headwater Impoundment Human
Disturbance Class: Pristine
Dominant Vegetation Class: PEM
Wetland Area: 1.3 ha (3.1 ac)
Year(s) Sampled: 1993, 1994

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Vegetation

Herbaceous
Percent Cover: 97.0% (range 65-115%)
Dominant Species
Common Name Scientific Name
Arrow leaved tear thumb Polygonum sagittatum
Broadleaf cattail Typha latifolia
Sensitive fern Onoclea sensibilis
Spotted touch me not Impatiens capensis
Tussock sedge Carex stricta
Woody
Percent cover: 40.0% (range 10-50%)
Dominant Species
Red maple Acer rubrum
Multiflora rose Rosa multiflora
Black willow Salix nigra
Weighted Indicator Status (dominant species)
Herbaceous: 1.30
Woody: 2.89
Weighted Indicator Status (all species)
Herbaceous: 1.42
Woody: NA
Species Richness
Total: 77
Herbaceous: 74
Woody: 3

Soils

Matrix Chroma (mean): 2.0
Organic Matter (mean %): 9.31
Bulk Density (g/cm2): NA
Soil Series: Chewacla silt loam
Texture (mean %)
Sand: 20.7
Silt: 51.8
Clay: 27.5
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