Restoration of Aquatic Ecosystems Science, Technology, and Public Policy (1992) / Chapter Skim
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Appendix B: Glossary
Appendix B: Glossary
Pages 519-525
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From page 519... ...
Typical objectives of artificial marsh creation include ecosystem replacement or storm water management. BANK STABILIZATION Methods of supporting the structural integrity of earthen stream channel banks with structural supports to prevent bank slumping and undercutting of riparian tress, as well as overall erosion.
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From page 520... ...
ECOLOGICAL INTEGRITY Maintenance of the structure and functional attributes characteristic of a particular locale, including normal variability. ECOREGIONS Ecological regions that have broad similarities with respect to soil, relief, and dominant vegetation.
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From page 521... ...
Lateral exchange between the floodplain and river channel, and nutrient cycling within the floodplain, are postulated to have a more direct impact on biota than does nutrient spiraling from upstream to downstream in the river channel; the bulk of the animal biomass in such a system is believed to be derived from production in the floodplain, not from downstream transport of organic matter produced elsewhere in the basin. FUNCTIONAL EQUIVALENCY-Ability of a restored or created ecosystem to perform ecosystem services, such as floodwater storage or pollutant detoxification, that are indistinguishable in effects from corresponding services performed by natural ecosystems.
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From page 522... ...
Among the broad spectrum of possible actions are those that restore, enhance, create, or replace damaged ecosystems. NATIVE FISH REINTRODUCTION-The final phase of a stream restoration effort, in which fish are reintroduced into a physically restored stream system to reestablish the original fish community.
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From page 523... ...
RIPARIAN REFORESTATION Replanting of the banks and floodplains of a stream with native forest and shrub species to stabilize erodible soil, improve both surface and ground water quality, increase stream shading, and enhance wildlife habitat. RIPARIAN VEGETATION Hydrophytic vegetation growing in the immediate vicinity of a lake or river close enough so that its annual evapotranspiration represents a factor in the lake or river regimen.
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From page 524... ...
STREAM BUFFER A variable-width strip of vegetated land adjacent to a stream that is preserved from development activity to protect water quality and aquatic and terrestrial habitats. STREAM ORDER Rivers and streams are classified by order.
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From page 525... ...
According to the 1989 federal wetlands delineation manual, wetlands include lands saturated for at least 7 days to a depth of 12 inches. A newly proposed definition by the Bush Administration would be lands that have 15 days of standing water and 21 days of surface saturation.
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