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Complete descriptions of soils are essential in any soil survey. The descriptions serve as a basis for soil identification, classification, correlation, mapping, and interpretation. A complete description also documents the conditions at the site of any soil-related research (Manual for Describing Soils in the Field, 1982, revised).
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Some other features of soils and sites that may be described are humus form, permafrost, land use, concretions, nodules, calcareousness, salinity, coarse fragments, and reaction. Example of a Pedon Description. Descriptive data for soils are commonly entered on CanSIS forms, but conventional descriptions are needed for some purposes. The ...
- The Science and Art of Soil and Landscape Description
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The Field Book summarizes the present science and art of describing and documenting soils and soilscapes in the USA. The intended audience is professionals who describe soils for various purposes. The Field Book includes key descriptors, conventions, and concepts from soil science and geomorphology to facilitate field observations and soil document...
Version 3.0 (2012) includes new content, chapter updates, new terms, and addresses errors in earlier versions. Version 3.0 supersedes previous releases, which should be discarded.The third printing (2021) of the field book contains some minor changes from previous printings. The changes are mostly errata, such as misspelled words.Pedogenic Carbonate Stages – discussion, concepts, graphicsArtifacts / Anthropogenic Morphology & Materials – discussion, all descriptorsSubaqueous Soils – discussion, description / documentationSoil Water Repellency – discussion, testGeomorphology Section – expanded contentGeologic Time Chart – updatedLocation: GPS, Public Land Survey, UTM – discussion & description details, UTM zone graphicReferences – expanded and updated by chapterEsta es una traducción de la versión 2.0. La versión actual, 3.0, no está actualmente disponible en español.
One copy may be ordered through the NRCS Distribution Center. For larger quantities, please contact your State Soil Scientist. 1. Order on-line: Go to the NRCS Distribution Center a. Enter the keywords “field book” 2. Order by phone: 888-526-3227 3. Order by e-mail: NRCSDistributionCenter@ia.usda.gov For commercial applications, copies are availabl...
through examination and description of the soil in the field. It is important that soil description be done thoroughly; it serves as the basis for soil classification and site evaluation as well as interpretations on the genesis and environmental functions of the soil. A good soil description and the derived
Three classes are used plus nonstructural grades. 1 - Weak: The peds are barely observable in place. When gently disturbed, the soil material parts into a mixture of entire and broken peds and much material that exhibits no ped faces. 2 - Moderate: The peds are well formed and evident in undisturbed soil.
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Soil texture is defined by the size distribution of primary mineral particles (2 mm diameter or less). The textural classes and codes are determined from the soil texture triangle by estimating the percentage of clay (less than 0.002 mm diameter) and sand (0.05 to < 2.0 mm diameter)(Figure 2.4).
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standardised brief soil description card (site card) included at the end of this guide. We include bold terms throughout this guide to highlight important soil terms commonly used in profile descriptions, including specific codes or soil abbreviations . These codes or soil abbreviations are mainly for field recording to save space on the site card.
