Soil Survey of McHenry County, Illinois Part I - Soil Data Mart

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202 Soil Survey Staff. 1998. Keys to soil taxonomy. 8th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service. U.S. Department of Agriculture Handbook 436. Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. United States Department of Agriculture. 1961. Land capability classification. Soil Conservation Service, U.S. Department of Agriculture Handbook 210. United States Department of Commerce, Bureau of the Census. 1990. 1990 census of population and housing. United States Department of Commerce, Bureau of the Census. 1992. 1992 census of agriculture.
Glossary Ablation till. Loose, permeable till deposited during the final downwasting of glacial ice. Lenses of crudely sorted sand and gravel are common. Aeration, soil. The exchange of air in soil with air from the atmosphere. The air in a well aerated soil is similar to that in the atmosphere; the air in a poorly aerated soil is considerably higher in carbon dioxide and lower in oxygen. Aggregate, soil. Many fine particles held in a single mass or cluster. Natural soil aggregates, such as granules, blocks, or prisms, are called peds. Clods are aggregates produced by tillage or logging. Alluvium. Material, such as sand, silt, or clay, deposited on land by streams. Alpha,alpha-dipyridyl. A dye that when dissolved in 1N ammonium acetate is used to detect the presence of reduced iron (Fe II) in the soil. A positive reaction indicates a type of redoximorphic feature. Animal unit month (AUM). The amount of forage required by one mature cow of approximately 1,000 pounds weight, with or without a calf, for 1 month. Aquic conditions. Current soil wetness characterized by saturation, reduction, and redoximorphic features. Area reclaim (in tables). An area difficult to reclaim after the removal of soil for construction and other uses. Revegetation and erosion control are extremely difficult. Association, soil. A group of soils or miscellaneous areas geographically associated in a characteristic repeating pattern and defined and delineated as a single map unit. Available water capacity (available moisture capacity). The capacity of soils to hold water available for use by most plants. It is commonly defined as the difference between the amount of soil water at field moisture capacity and the amount at wilting point. It is commonly expressed as inches of water per inch of soil. The capacity, in inches, in a 60-inch profile or to a limiting layer is expressed as: Very low ............................................................ 0 to 3 Low ................................................................... 3 to 6 Moderate .......................................................... 6 to 9 High ................................................................ 9 to 12 Very high .............................................. more than 12 203 Backslope. The position that forms the steepest and generally linear, middle portion of a hillslope. In profile, backslopes are commonly bounded by a convex shoulder above and a concave footslope below. Basal till. Compact glacial till deposited beneath the ice. Base saturation. The degree to which material having cation-exchange properties is saturated with exchangeable bases (sum of Ca, Mg, Na, and K), expressed as a percentage of the total cationexchange capacity. Bedrock. The solid rock that underlies the soil and other unconsolidated material or that is exposed at the surface. Bench terrace. A raised, level or nearly level strip of earth constructed on or nearly on a contour, supported by a barrier of rocks or similar material, and designed to make the soil suitable for tillage and to prevent accelerated erosion. Bottom land. The normal flood plain of a stream, subject to flooding. Boulders. Rock fragments larger than 2 feet (60 centimeters) in diameter. Calcareous soil. A soil containing enough calcium carbonate (commonly combined with magnesium carbonate) to effervesce visibly when treated with cold, dilute hydrochloric acid. Capillary water. Water held as a film around soil particles and in tiny spaces between particles. Surface tension is the adhesive force that holds capillary water in the soil. Cation. An ion carrying a positive charge of electricity. The common soil cations are calcium, potassium, magnesium, sodium, and hydrogen. Cation-exchange capacity. The total amount of exchangeable cations that can be held by the soil,
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United States Department of Agricul
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How To Use This Soil Survey This su
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Contents How To Use This Soil Surve
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528A—Lahoguess loam, 0 to 2 perce
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Foreword This soil survey contains
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Soil Survey of McHenry County, Illi
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McHenry County, Illinois—Part I 1
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18 Soil Survey of sand than loess t
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Soil Series and Detailed Soil Map U
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144 Soil Survey Staff. 1998. Keys t
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146 Soil Survey of expressed in ter
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148 Soil Survey of inclined surface
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150 Soil Survey of Lacustrine depos
Page 152 and 153: 152 Soil Survey of The chemical red
Page 154 and 155: 154 its equivalent in uncultivated
Page 156 and 157: 156 Soil Survey of Table 1.--Temper
Page 158 and 159: 158 Soil Survey of Table 4.--Classi
Page 160 and 161: 160 Soil Survey of Table 5.--Acreag
Page 162 and 163: 162 Table 5.--Acreage and Proportio
Page 165 and 166: How To Use This Soil Survey This su
Page 167: Contents How To Use This Soil Surve
Page 171 and 172: Agronomy General management needed
Page 173 and 174: McHenry County, Illinois—Part II
Page 181 and 182: Forestland Paul M. Deizman, distric
Page 183: Recreation McHenry County offers a
Page 186 and 187: 186 Soil Survey of and are most lik
Page 189 and 190: Engineering This section provides i
Page 195 and 196: Soil Properties Data relating to so
Page 199: McHenry County, Illinois—Part II
Page 204 and 205: 204 Soil Survey of expressed in ter
Page 206 and 207: 206 Soil Survey of inclined surface
Page 208 and 209: 208 Soil Survey of Lacustrine depos
Page 210 and 211: 210 Soil Survey of The chemical red
Page 212 and 213: 212 its equivalent in uncultivated
Page 214 and 215: 214 Soil Survey of Table 1.--Temper
Page 216 and 217: 216 Soil Survey of Table 4.--Classi
Page 222 and 223: 222 Soil Survey of Table 6.--Main C
Page 230 and 231: 230 Soil Survey of Table 7.--Land C
Page 238 and 239: 238 Soil Survey of Table 8.--Main P
Page 240 and 241: 240 Soil Survey of Table 8.--Main P
Page 242 and 243: 242 Soil Survey of Table 9.--Prime
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252 Soil Survey of Table 10.--Windb
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264 Soil Survey of Table 11.--Fores
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276 Soil Survey of Table 12.--Recre
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288 Soil Survey of Table 13.--Wildl
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296 Soil Survey of Table 14.--Build
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310 Soil Survey of Table 15.--Sanit
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322 Soil Survey of Table 16.--Const
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Table 17.--Water Management (Some t
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Table 17.--Water Management--Contin
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Table 18.--Engineering Index Proper
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Table 19.--Physical and Chemical Pr
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400 Soil Survey of Table 20.--Water
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408 Soil Survey of Table 21.--Soil
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Printing Soil Survey Maps The soil
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Descriptions of Special Features Na
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Name Description Label Rock outcrop
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Soil Survey of McHenry County, Illinois Part I - Soil Data Mart

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