Laserfiche WebLink
Custom Soil Resource Report <br />Soil Reports <br />The Soil Reports section includes various formatted tabular and narrative reports <br />(tables) containing data for each selected soil map unit and each component of each <br />unit. No aggregation of data has occurred as is done in reports in the Soil Properties <br />and Qualities and Suitabilities and Limitations sections. <br />The reports contain soil interpretive information as well as basic soil properties and <br />qualities. A description of each report (table) is included. <br />Land Classifications <br />This folder contains a collection of tabular reports that present a variety of soil <br />groupings. The reports (tables) include all selected map units and components for <br />each map unit. Land classifications are specified land use and management groupings <br />that are assigned to soil areas because combinations of soil have similar behavior for <br />specified practices. Most are based on soil properties and other factors that directly <br />influence the specific use of the soil. Example classifications include ecological site <br />classification, farmland classification, irrigated and nonirrigated land capability <br />classification, and hydric rating. <br />Hydric Soils <br />This table lists the map unit components that are rated as hydric soils in the survey <br />area. This list can help in planning land uses; however, onsite investigation is <br />recommended to determine the hydric soils on a specific site (National Research <br />Council, 1995; Hurt and others, 2002). <br />The three essential characteristics of wetlands are hydrophytic vegetation, hydric <br />soils, and wetland hydrology (Cowardin and others, 1979; U.S. Army Corps of <br />Engineers, 1987; National Research Council, 1995; Tiner, 1985). Criteria for all of the <br />characteristics must be met for areas to be identified as wetlands. Undrained hydric <br />soils that have natural vegetation should support a dominant population of ecological <br />wetland plant species. Hydric soils that have been converted to other uses should be <br />capable of being restored to wetlands. <br />Hydric soils are defined by the National Technical Committee for Hydric Soils <br />( NTCHS) as soils that formed under conditions of saturation, flooding, or ponding long <br />enough during the growing season to develop anaerobic conditions in the upper part <br />(Federal Register, 1994). These soils, under natural conditions, are either saturated <br />or inundated long enough during the growing season to support the growth and <br />reproduction of hydrophytic vegetation. <br />The NTCHS definition identifies general soil properties that are associated with <br />wetness. In order to determine whether a specific soil is a hydric soil or nonhydric soil, <br />however, more specific information, such as information about the depth and duration <br />of the water table, is needed. Thus, criteria that identify those estimated soil properties <br />unique to hydric soils have been established (Federal Register, 2002). These criteria <br />are used to identify map unit components that normally are associated with wetlands. <br />The criteria used are selected estimated soil properties that are described in "Soil <br />45 <br />