Laserfiche WebLink
PARALITHIC CONTACT - boundary between soil and hard (greater than three on Moh's scale), • <br />continuous, coherent underlying materials. Roots generally do not extend below a <br />paralithic contact. Much disagreement exists concerning the nature and placement of <br />the paralithic contact. <br />P EDON - a conceptual unit area of soil which represents the nature and variabilities of <br />its horizons and other properties. <br />PHASE - a subdivision of a soil series based on such factors as slope, surface texture, <br />stoniness, salinity, internal drainage, carbonates, etc. <br />PROFILE - the sequence of horizons present in a soil, <br />RESIDUUM - unconsolidated material which accumulates by weathering of parent material in <br />place. <br />SANDY - texture of fine earth is sand or loamy sand but not loamy very fine sand or very <br />fine sand; rack fragments make up less than 35 percent by volume. • <br />SERIES - a level of classification in the soil taxonomic system; somewhat similar to the <br />species category in the Linnean taxonomic system. <br />SHALLOW - the soil is 10 to 20 inches deep over bedrock. <br />SKELETAL - the soil contains 35 percent or more coarse fragments, by volume. Fine earth <br />modifiers of sandy, loamy, or clayey precede the term skeletal in soil <br />classification. <br />VARIANT - a soil whose properties are sufficiently different from recognized series to <br />justify a new series but comprising such a limited geographic area that <br />creation of a new series is not justified. <br />VERY DEEP - the soil is greater than 60 inches deep over bedrock. <br />VERY SHALLOW - the soil is less than 10 inches deep over bedrock. • <br />9-6-29 Revised 05/16/88 <br />