2023-09-06_PERMIT FILE - M2023032 (5)

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Custom Soil Resource Report Stony spot (map symbol) A spot where 0.01 to 0.1 percent of the soil surface is covered by rock fragments that are more than 10 inches in diameter in areas where the surrounding soil has no surface stones. Strath terrace A type of stream terrace; formed as an erosional surface cut on bedrock and thinly mantled with stream deposits (alluvium). Stream terrace One of a series of platforms in a stream valley, flanking and more or less parallel to the stream channel, originally formed near the level of the stream; represents the remnants of an abandoned flood plain, stream bed, or valley floor produced during a former state of fluvial erosion or deposition. Striperopping Growing crops in a systematic arrangement of strips or bands that provide vegetative barriers to wind erosion and water erosion. Structure, soil The arrangement of primary soil particles into compound particles or aggregates. The principal forms of soil structure are: Platy: Flat and laminated Prismatic:Vertically elongated and having flat tops Columnar:Vertically elongated and having rounded tops Angular blocky: Having faces that intersect at sharp angles (planes) Subangular blocky.- Having subrounded and planar faces (no sharp angles) Granular:Small structural units with curved or very irregular faces Structureless soil horizons are defined as follows: Single grained: Entirely noncoherent (each grain by itself), as in loose sand Massive:Occurring as a coherent mass Stubble mulch Stubble or other crop residue left on the soil or partly worked into the soil. It protects the soil from wind erosion and water erosion after harvest, during preparation of a seedbed for the next crop, and during the early growing period of the new crop. Subsoil Technically, the B horizon; roughly, the part of the solum below plow depth. Subsoiling Tilling a soil below normal plow depth, ordinarily to shatter a hardpan or claypan. 68