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Mounds View Silver View Park Pond
<br /> Nonnative Woodland - Desired Future Conditions Overview
<br /> BUR OAK- PIN OAK WOODLAND
<br /> Vegetation o
<br /> Layer Cover(/o) Representative Plant Species
<br /> Canopy >50 Bur oak, white oak, black cherry, hackberry,American elm, aspen,
<br /> cottonwood, red pine
<br /> Shrub/Sapling 10-25 Black raspberry, red-berried elder, gooseberry, chokecherry, American
<br /> hazelnut, gray dogwood, Virginia creeper
<br /> Bottlebrush grass, silky wild rye, Pennsylvania sedge, Sprengel's sedge,
<br /> Herbaceous common woodland sedge, white snakeroot, violets, enchanter's
<br /> (Ground) 75-100 nightshade, false Solomon's seal, Clayton's sweet cicely, wild geranium,
<br /> lopseed, large-leaved aster, wild columbine, calico aster, arrowleaf aster,
<br /> zig-zag goldenrod, tall bellflower, black-eyed Susan
<br /> 3.3 Lowland Hardwoods Existing Cover Type
<br /> The lowland hardwoods cover type was mapped across a total of 3.5 acres of the project area. About 2
<br /> acres occurred within very narrow strips along the pond shoreline. An aerial photo from 1991, Figure 4,
<br /> illustrates that much of the hardwood cover along the shoreline has established over the last 30 years.
<br /> Along some stretches of shoreline in 2023, this cover type was essentially only a couple of feet wide with
<br /> trees and shrubs rooted in vertical banks and much of the canopy cover over water. Along other
<br /> stretches, there were steep banks that dropped off from the mowed trail edges. The banks were covered
<br /> by native shrubs but lacked ground cover below. Much of the steep-banked shoreline that did not have
<br /> herbaceous ground cover was eroded and bare.
<br /> Lowland hardwood canopy cover varied but was generally 50-75%. Boxelder was most common in the
<br /> canopy, with occasional cottonwood, Siberian elm, and amur chokecherry. River birch and Amur
<br /> chokecherry appear to have been intentionally planted around the pond. Other native trees that occur in
<br /> this cover type, though infrequently, included paper birch, quaking aspen, black walnut, hackberry, silver
<br /> maple, and black cherry. Invasive trees that occur occasionally throughout the lowland hardwoods were
<br /> white mulberry, white poplar, and Siberian elm. In addition to Amur chokecherry, nonnative weeping
<br /> willow and crabapple trees were present as well. Saplings of all the native canopy species were observed
<br /> in the understory. One 4-inch bur oak was observed along the north shoreline in the understory.
<br /> Common buckthorn and glossy buckthorn were the most common shrubs, comprising nearly continuous
<br /> cover in much of the mapped lowland hardwood areas. They have formed thickets that significantly limit
<br /> shoreline views of the pond from the paved trail and have also significantly restricted or eliminated native
<br /> shrub and herbaceous plant growth. Buckthorn thickets also occurred under lowland hardwoods
<br /> Project Number: 193806465 12
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