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Jewelweeds Impatiens pallida or
Cinnamon Fern Osmunda cinnamomea
Royal Fern Osmunda regalis
Soft Rush Juncus effusus
Frank's Sedge Carex frankii
Fox Sedge Carex vulpinoidea
Softstem Bulrush Scripus atrovirens
Dark Green Rulrush Scripus validus
Sweetshrub Clethra alnifolia or
American Elderberry Sambucus canadensis
Gray Dogwood Cornus racemosa
Silky Dogwood Cornus amomum
Stiff Dogwood Cornus foemina
Deciduous Holly llex decidua
Pin Oak Quercus palustris
Swamp Chestnut Oak Quercus michauxii
Cherrybark Oak Quercus pagoda
Bur Oak Quercus macrocarpa
Willow Oak Quercus phellos
Swamp White Oak Quercus bicolor
Shellbark Hickory Carya laciniosa
American Elm Ulmus americana
Zone 4: Riparian Fringe
Common Name Scientific Name
Eastern Gamagrass Tripsacum dactyloides
Prairie Cordgrass Spartina pectinata
Big Bluestem Andropogon gerardii
Wild Rye Elymus virginicus
New England Aster Aster novae-angliae
Dense Blazingstar Liatris spicata
Sweet Black-eyed Susan Rudbeckia subtomentosa
Branched Coneflower Rudbeckia triloba
Golden Alexanders Zizia aurea
Ironweed Veronia altissima or
False Dragonhead Physostegia virginiana
Shrubs (shrubs listed in Zone 3 will work in addition to the
Smooth Sumac Rhus glabra
False Indigo Amorpha fruiticosa
Trees (all the trees listed in Zone 3 will work in addition to
Northern Red Oak Quercus rubra
Shumard Oak Quercus shumardii
Black Walnut Juglans nigra
Red Elm Ulmus rubra
Yellow Poplar Liriodendron tulipifera
White Ash Fraxinus americana
American Basswood Tilia americana
American Hornbeam Carpinus caroliniana
Eastern Hophornbeam Ostrya virginiana
Downy Hawthorn Crataegus mollis
Zone 5: Floodplain Terrrace and Zone 6: Upland Slopes
For woody plants suitable for Zones 5 and 6 , ask your county Extension office for a copy of the publication, Trees, Shrubs, and Vines That Attract Wildlife.
Figure 1.
Landscaping zones in stormwater areas.
Adapted from Wittans and Weiss, 1985, and Schueler, 1987.
Zone 1: Deep Water Areas
This is the wettest zone; these areas are permanently under one to eight feet of water.
Plants in this zone require permanently saturated soils and are predominated by submergent aquatics and floating plants such as duckweed, water lotus, spadderdock, waterlily, and eelgrass.
Zone 2: Shallow Water Areas
This zone is permanently wet with an average water depth of less than one foot or semi-permanently inundated.
Ecological communities typified by this zone include bottomland hardwood forests, wet prairies and marshes, seeps, ponds and sloughs, and the margins of lakes.
Plants adapted to this zone prefer continuously wet soils and tolerate extended periods of flooding or inundation.
Examples of plants would include cattails, rushes, burreed, sweet flag, copper iris, southern blue flag iris, and cinnamon fern.
Zone 3: Pond Shoreline
Plants in this zone must be tolerant of inundation during storms and exposure during dry periods.
Vegetation that can be established here includes sedges, buttonbush, and cattail.
Parts of the shoreline should be kept free of vegetation and maintained as mudflats or sandbars.
Zone 4: Riparian Fringe Area
Plants in this zone must be able to tolerate both wet and dry soil conditions and periodic inundation.
Potential tree species include black willow, green ash, red maple, and sycamore.
Zone 5: Floodplain Terrace
This zone includes most of the pond embankments.
Trees that grow in this zone prefer moist soil but can tolerate infrequent inundation.
These species include silky dogwood, elderberry, and spicebush.
When landscaping around the pond, avoid planting trees and shrubs on the embankment or along the dam because their roots can be destructive to the dam.
In general, a pond designed for waterfowl has only about 50 percent of this zone planted with trees and shrubs.
Zone 6: Upland Slopes
This area is seldom inundated with water.
Trees that can be planted here include chokeberry, elderberry, and dogwood.
For woody plants suitable for Zones 5 and 6 , ask your county Extension office for a copy of the publication, Trees, Shrubs, and Vines That Attract Wildlife.
For Scenario 4, an end gun was placed on the end of the corner extension.
In this scenario the end gun functions only about 9 degrees out of each corner.
The size of the end gun determines how much energy could be conserved if the pump impeller speed is adjusted based on the need of the center pivot.
For Scenario 4 the energy cost savings when using a VFD averaged about $3.00 per hour.
How Much Nitrogen is in My Irrigation Water?
The amount of nitrate in water is measured as parts per million or milligrams per liter , these are the same measure for nitrate.
Each ppm will add 0.227 pounds of nitrogen per acre with each inch of irrigation water applied.
Dean E.
Eisenhauer Derrel L.
Martin Derek M.
Heeren, General Editor Glenn J.
Hoffman
Dean E.
Eisenhauer Derrel L.
Martin Derek M.
Heeren, General Editor Glenn J.
Hoffman
Copy editing and layout by Peg McCann Cover design by Melissa Miller Cover photos: Drip lateral, photo courtesy of Toro Lake McConaughy, photo courtesy of Steve Melvin, Nebraska Extension Weather station, canal, furrow irrigation in corn, and center pivot photos by the authors
This work is licensed with a Creative Commons Attribution 4.0 International License
The American Society of Agricultural and Biological Engineers is not responsible for statements and opinions advanced in its meetings or printed in its publications.
They represent the views of the individual to whom they are credited and are not binding on the Society as a whole.