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<br />39 <br />Loup Series <br />r <br />• <br />TAXONOMIC CLASSIFICATION: Sandy mixed, mesic, Typic <br />Haplaquoll <br />The Loup series consists of deep, poorly drained soils <br />that formed in sandy alluvium. Loup soils occur primarily <br />along drainages in the sandhill area and have slopes of <br />0 to 3 percent. <br />Loup soils are near the Boel and Valent soils. Boel <br />soils are stratified and somewhat poorly drained. Valent <br />soils are excessively drained and have a light colored <br />surface layer. <br />Profile description of Loup loamy sand from an area <br />of Loup-Boe1 loamy sands, 0 to 3 percent slopes. <br />O1 -- 2 inches to 0, undecomposed organic material, chiefly <br />grasses, sedges, and roots. <br />Al -- 0 to 16 inches, very dark grayish brown (lOYR 3/2) <br />loamy sand with few fine distinct reddish brown <br />(SYR 5%4) and dark gray (N4/) mottles, black <br />(lOYR 2/1) moist; weak fine granular structure; <br />soft, very friable; calcareous; moderately alkaline <br />(pH 8.2); diffuse boundary. <br />C1 -- 16 to 40 inches, light brown gray (lOYR 6/2) loamy <br />sandy with few fine distinct yellowish brown <br />(lOYR 4/4) mottles, grayish brown (lOYR 5/2) moist; <br />weak fine granular structure; soft, very friable; <br />calcareous; moderately alkaline (pH 8.2); gradual <br />wavy boundary. <br />C2 -- 40 to 60 inches, light brownish gray (lOYR 6/2) sandy <br />loam with common medium distinct yellowish brown <br />(lOYR 5/6) and gray (lOYR 5/1) mottles, grayish <br />brown (lOYR 5/2) moist; massive; hard, friable; <br />calcareous; moderately alkaline (pH 8.0). <br />Typically these soils have free carbonates at the <br />surface. <br />The A horizons has value of 3 or 4 dry, 2 or 3 moist <br />and chroma of 1 or 2. The C horizon, to a depth of 40 <br />inches or more, is a loamy sand or sand. <br />