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Sandy spot (map symbol) <br />A spot where the surface layer is loamy fine sand or coarser in areas where the <br />surface layer of the named soils in the surrounding map unit is very fine sandy <br />loam or finer. <br />Sapric soil material (muck) <br />The most highly decomposed of all organic soil material. Muck has the least <br />amount of plant fiber, the highest bulk density, and the lowest water content at <br />saturation of all organic soil material. <br />Saturated hydraulic conductivity (Ksat) <br />The ease with which pores of a saturated soil transmit water. Formally, the <br />proportionality coefficient that expresses the relationship of the rate of water <br />movement to hydraulic gradient in Darcy’s Law, a law that describes the rate of <br />water movement through porous media. Commonly abbreviated as “Ksat.” <br />Terms describing saturated hydraulic conductivity are: <br />Very high: 100 or more micrometers per second (14.17 or more inches per <br />hour) <br />High: 10 to 100 micrometers per second (1.417 to 14.17 inches per hour) <br />Moderately high: 1 to 10 micrometers per second (0.1417 inch to 1.417 inches <br />per hour) <br />Moderately low: 0.1 to 1 micrometer per second (0.01417 to 0.1417 inch per <br />hour) <br />Low: 0.01 to 0.1 micrometer per second (0.001417 to 0.01417 inch per hour) <br />Very low: Less than 0.01 micrometer per second (less than 0.001417 inch per <br />hour). <br />To convert inches per hour to micrometers per second, multiply inches per hour <br />by 7.0572. To convert micrometers per second to inches per hour, multiply <br />micrometers per second by 0.1417. <br />Saturation <br />Wetness characterized by zero or positive pressure of the soil water. Under <br />conditions of saturation, the water will flow from the soil matrix into an unlined <br />auger hole. <br />Scarification <br />The act of abrading, scratching, loosening, crushing, or modifying the surface to <br />increase water absorption or to provide a more tillable soil. <br />Sedimentary rock <br />A consolidated deposit of clastic particles, chemical precipitates, or organic <br />remains accumulated at or near the surface of the earth under normal low <br />temperature and pressure conditions. Sedimentary rocks include consolidated <br />equivalents of alluvium, colluvium, drift, and eolian, lacustrine, and marine <br />deposits. Examples are sandstone, siltstone, mudstone, claystone, shale, <br />conglomerate, limestone, dolomite, and coal. <br />Custom Soil Resource Report <br />57 Index #10