ABSTRACT
Introduction ................................................................................................................................. 220 Off-Site Investigations for the Presence of Hydric Soils ........................................................ 220
Web Soil Survey and the National List of Hydric Soils .................................................... 220 Use of WSS.......................................................................................................................... 221
Field Sampling for the Identification of Hydric Soils ............................................................ 221 Introduction ............................................................................................................................ 221 Site Selection ........................................................................................................................... 224 Items Required for Describing Hydric Soils .......................................................................225 Digging a Soil Pit ....................................................................................................................225 Writing a Soil Description for the Identification of Hydric Soils .................................... 226
Selecting and Measuring Soil Layers .............................................................................. 226 Describing Soil Color ........................................................................................................227 Aspects of Soil Color .........................................................................................................227 Color Patterns in Soil ........................................................................................................228 Soil Textures for Hydric Soils Identification ..................................................................230 Determining Soil Texture in the Field ............................................................................. 231
Other Important Soil Features and Concepts for Identifying Hydric Soils ........................234 Morphological Expressions of Reduced Conditions .........................................................234
