| 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... | |
| 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... | |
| 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... | |
| 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... | |
| 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... | |
| 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... | |
| 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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