The National Ecological Site Handbook (NESH) provides standards, guidelines, definitions, policies, responsibilities, and procedures for conducting the collaborative process of ecological site description (ESD) development. Responsibilities for ESD development are shared among disciplines, including soils, range, forest, agronomy, wildlife biology, and hydrology. The NESH describes steps needed to collect information on site attributes, site correlation and classification, site dynamics, and site interpretations to ensure the quality and utility of Ecological Sites.
The eDirectives system at https://directives.sc.egov.usda.gov/Default.aspx is the authoritative source for NRCS directives, including the NESH. The NESH consists of Title 190, Ecological Sciences, parts 630 through 633. The copy here is provided for convenience.
U.S. Department of Agriculture, Natural Resources Conservation Service. National ecological site handbook. https://directives.sc.egov.usda.gov (accessed day month year).
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