The Rangelands West collection includes articles, websites, reports, and multimedia resources focused on issues relevant to the Western U.S. Also included are resources emanating from the 19 land-grant universitires that are members of the Rangelands Partnership and made available throught their respective state Rangelands websites.
Keys to Soil Taxonomy
USDA-Natural Resources Conservation Service
This publication, Keys to Soil Taxonomy, Twelfth Edition, 2014, coincides with the 20th World Congress of Soil Science, to be held on Jeju Island, Korea in June 2014. The Keys to Soil Taxonomy serves two purposes. It provides the taxonomic keys necessary for the classification of soils in a form that can be used easily in the field. It also acquaints users of soil taxonomy with recent changes in the classification system. The twelfth edition of the Keys to Soil Taxonomy incorporates all changes approved since the publication in 1999 of the second edition of Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys.