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• occupied by this soil cannot be distinguished from the Fort <br />Collins loam by the vegetation alone. Under normal <br />precipitation the soil can produce about 900 pounds per acre <br />(dry weight). Its main problems mechanically is the slope <br />which causes some slippage problems. It is a fair to good <br />topsoil source. It has a fair wildlife habitat potential <br />for grasses and legumes. <br />A typical analysis of this soil reveals a sandy loam in <br />the first 4 inches, a highly variable testure (clay loam to <br />sandy loam) between 4 and 16 inches, and a loam to sandy <br />loam between 16 and 60 inches. Particles passing sieve <br />number 40 are fairly constant and ranges from 60 to 100 <br />percent, but with increasing depth particles passing sieve <br />number 200 increases up to about 18 inches depth where it is <br />35 to 80 percent and then slightly decreases with greater <br />depth. Permeability in the top 4 inches ranges from 2.0 to <br />6.0 inches per hour but below that decreases to 0.6 to 2.0 <br />inches per hour. Available water capacity ranges from 0.11 <br />to 0.18 inches per inch. The pH increases with depth to <br />about 9.0 at about 4 to 5 feet deep. Salinity is less than <br />2 mmohs/cm. <br />Shown below is a description of a typical soil profile. <br />On this site the soil is somewhat atypical in that the soft <br />• masses of calcium carbonate are not usually found. Instead <br />there is simply a very diffuse calcareous layer. In this <br />respect, on this site, the Stoneham sandy loam is somewhat <br />more like the Fort Collins loam. We suspect the pH would be <br />somewhat lower than is typical and probably more like the <br />Fort Collins loam than a typical Stoneham sandy loam. <br />Stoneham Series: <br />The Stoneham series consists of deep, well drained <br />soils that formed in medium testured, calcareous sediment. <br />These soils are on uplands. They have slopes of 3 to 15 <br />percent. Average annual precipitation is about 14 inches, <br />and average annual air temperature is about 49 degrees F. <br />Stoneham soils are similar to Fort Collins and Olney <br />soils. They are near the competing Fort Collins soils. <br />Fort Collins and Olney soils have a solum that is more than <br />15 inches thick. <br />Typical pedon of Stoneham sandy loam, 3 to 8 percent <br />slopes, 150 feet north of the gasline and road intersection <br />in the SE'a of sec. 7, T. 175., R. 64W: <br />Al-0 to 4 inches; pale brown (lOYR 6/3) sandy loam, <br />C, <br />J <br />- 29 - <br />