Hydric Soils as a Part of Water Treatment in Wetland Systems Essay

Hydric Soils as a Part of Water interposition in Wetland SystemsMost basically, a hygrophytic soil is defined as A soil that is saturated, flooded, or ponded farseeing enough during the development season to develop anaerobic conditions in the focal ratio part (Kent, 1994, p. 26). Included by this definition in the United States discussion section of Agriculture/Soil Conservation Services list Hydric Soils of the United States ar all of the poorly drained and very poorly drained soils and just about of the somewhat poorly drained soil series. Hydric soils are move on categorized into two major groups mineral soils and organic soils. Histosols (organic soils) typically mark at least 46 cm of organic yield in the upper part of the soil profile. They are grouped by the grad to which plant material and fibers are decomposed. Most decayed are the saprists (muck), followed by hemists (mucky-peats and peaty mucks), and fibrists (peats), the least decomposed. (Folists, the fourth group of organic soils, are not regarded as hydric soils because the organic part is not inundation or saturation derived.) Mineral soils ordinarily have less organic matter in the upper part of the soil profile than histosols. To be considered hydric soil, a mineral soil must meet specific drainage and water table criteria that indicate at least 15 consequent days of saturation or 7 days of inundation during the growing season. Hydric mineral soils embarrass soils in the Aquic subgroups, Aquic suborders, Albolls suborder, Salorthids great groups and Pell great groups of vertisols (Kent, 1994). In the field, hydric soils are distinguished by indicators displayed within the root zone. These include histosols, histic epipedons, high organic matter content in the surface hori... ...aton, C. K. Smoley, 216 p.Kadlec, Robert H., and Robert L. Knight, 1996, Treatment Wetlands Boca Raton, Lewis Publishers, 893 p.Kent, Donald M., editor, 1994, Applied Wetlands Science and Technology Boca Raton, Lewis Publishers, 436 p.Landers, Judith C., and Barbara A. Knuth, 1991, Use of Wetlands for Water Quality good under the USEPA Region V Clean Lakes Program Environmental Management, Vol. 15, no. 2, pp. 151-162. Mitsch, William J., and Gosselink, James G., 1993, Wetlands, Second magnetic variation New York, Van Nostrand Reinhold, 722 p.Simmons, Robert C., Arthur J. Gold, and Peter M. Groffman, 1992, process Dynamics in Riparian Forests Groundwater Studies Journal of Environmental Quality, Vol. 21, pp. 659-665.Singer, Michael J., and Donald N. Munns, 1996, Soils An Introduction, Third Edition Upper Saddle River, Prentice Hall, 480 p.