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" For purposes of this classification, wetlands must have one or more of the following three attributes: (1) at least periodically, the land supports predominantly hydrophytes, (2) the substrate is predominantly undrained hydric soil, and (3) the substrate... "
Classification of Wetlands and Deepwater Habitats of the U. S. - Page 3
by Lewis M. Cowardin - 1994 - 131 pages
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The ... Yearbook of Agriculture

Agriculture - 1983 - 624 pages
...plants, 2) The substrate is predominantly undrained hydric (wet) soil, and 3) The substrate is nonsoil and is saturated with water or covered by shallow water at some time during the growing season each year. Biologists and wetland specialists have made previous attempts to classify and inventory...
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Section 404 of the Clean Water Act: Hearings Before the Subcommittee on ...

United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Environmental Pollution - Dredging spoil - 1982 - 486 pages
...Some of Alaska's best soils or agricultural soils fit under this category. The substrate of non-soil is saturated with water or covered by shallow water at some time during the growing season each year. This attribute has potential impact on about 25 percent of Alaska's potential farmland....
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Fish and wildlife miscellaneous: hearings before the Subcommittee on ...

United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Fisheries and Wildlife Conservation and the Environment - Fishery law and legislation - 1983 - 276 pages
...hydrophytes;* (2) the substrate is predominantly undrained hydrit: soil;tand (3) the substrate is nonsoil and is saturated with water or covered by shallow...variety of areas that fall Into one of five categories: (II areas with hydrophytes and hydric soils, such as those commonly known as marshes, swamps, and bogs;...
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Wetlands Identification: Federal Manual for Identifying and Delineating ...

Nature - 1989 - 130 pages
...hydrophytes, (2) the substrate is predominantly undrained hydric soil, and (3) the substrate is nonsoil and is saturated with water or covered by shallow...some time during the growing season of each year. 1.13. This definition includes both vegetated, and nonvegetated wetlands, recognizing that some types...
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Constructed Wetlands for Wastewater Treatment: Municipal, Industrial and ...

Donald A. Hammer - Technology & Engineering - 1989 - 860 pages
...plants that can grow there) • areas with nonsoil substrate (such as rock or gravel) that are saturated or covered by shallow water at some time during the growing season The classification system is much like the hierarchical system scientists use for classifying plants...
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The Ecology and Management of Aquatic-terrestrial Ecotones

Robert J. Naiman, Henri Décamps - Science - 1990 - 336 pages
...hydrophytes. |2) the substrate is classified predominantly as an undrained hydric soil. and (3) the substrate is saturated with water or covered by shallow water at some time during the growing season each year. Wetlands occur over a wide range of hydrologic conditions. and the common terms used to...
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Ecological Processes and Cumulative Impacts Illustrated by Bottomland ...

Coastal Ecology Inst - Technology & Engineering - 1990 - 740 pages
...terrestrial and aquatic where the water table is at or near the surface and where: 1) a non-soil substrate is saturated with water or covered by shallow water at some time each year, and/or 2) the substrate is predominantly undrained hydric soil, and/or 3) the vegetation...
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Environmental Risk: Identification and Management

Albert R. Wilson - Technology & Engineering - 1991 - 446 pages
...hydrophytes, (2) the substrate is predominantly undrained hydric soil, and (3) the substrate is nonsoil and is saturated with water or covered by shallow...some time during the growing season of each year. The US Army Corps of Engineers, which regulates development of wetlands under the Clean Water Act, gives...
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Impact of Federal Wetland Regulations on the Small Business ..., Volume 4

United States. Congress. House. Committee on Small Business. Subcommittee on Exports, Tax Policy, and Special Problems - Government publications - 1991 - 312 pages
..."the substrate is predominantly undrained hydric soil (wet soils); and, "the substrate is not soil and is saturated with water or covered by shallow...some time during the growing season of each year." This definition, developed by the Fish and Wildlife Service, serves as the basis for federal law and...
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Hydropower 2002: Reclamation's Energy Initiative

United States. Bureau of Reclamation - Energy development - 1991 - 124 pages
...hydrophytes; (2) the substrate is predominantly undrained hydric soil; and (3) the substrate is on soil and is saturated with water or covered by shallow...some time during the growing season of each year. A generator powered by a turbine driven by the wind. ABBREVIATIONS ADSS Advanced Decision Support Systems...
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