Post on 19-Dec-2015
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Summary of Restoration Elements
Plant Materials
Basic Questions
• What species?
• What forms?
• What mix?
• When needed?
General Requirements
• Native• Appropriate for restoration goal (to restore
wetland, prairie, etc.)• Will survive site conditions• Will be competitive with invasive species• Affordable• Available when needed• Meet requirements for local genotype
Site Modification
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Site Modification can include a number of different treatments
• Invasive plant removal
• Grading
• Removal of unacceptable materials– Weed seedbanks, toxic substances, non-soil
• Seedbed preparation
• Placement of aboveground obstructions
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• Creation of wildlife habitat structures
• Engineered elements– Weirs, dams, dikes, infiltratration systems,
swales
• Plugging ditches and removing tiles
• Installing liners
• Structurally repairing eroded areas
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Site Conditioning
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• What differentiates site modification from site conditioning?
– Site modification usually entails a structural solution to providing a desired condition, service, etc.
– Site conditioning depends more on the autogenic capabilities of a biological community.
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Site conditioning can include
• Seedbed improvement
• Preparatory crops/stubble
• Mulch
• Creation of shade
• Addition of topsoil on stripped sites
• Building of soil OM by growing vegetation that can tolerate a degraded site
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• Techniques to ameliorate salinity problems
• Bioremediation
• Methods for creating more complex soil biota
• Flooding/draining– To add biomass– To accommodate wildlife– To decrease targeted species
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No-till planting
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Live-staked willows
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Live-staked willows, one year old
Installation
• Plants…collection, propagation, salvage, purchase
• Planting plans…polygons, elevations
• Transport and storage
• Planting day
• Herbivory
• Irrigation
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