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    Author(s): James R. Maxwell; Clayton J. Edwards; Mark E. Jensen; Steven J. Paustian; Harry Parrott; Donley M. Hill
    Date: 1995
    Source: General Technical Report NC-176. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
    Publication Series: General Technical Report (GTR)
    Station: North Central Research Station
    PDF: View PDF  (18.03 MB)

    Description

    Proposes a framework for classifying and mapping aquatic systems at various scales using ecologically significant physical and biological criteria. Classification and mapping concepts follow tenets of hierarchical theory, pattern recognition, and driving variables. Criteria are provided for the hierarchical classification and mapping of aquatic ecological units of riverine, lacustrine, and ground-water systems within their geoclimatic and watershed settings. Some hydrogeomorphic criteria for classifying wetlands are also proposed.

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    Citation

    Maxwell, James R.; Edwards, Clayton J.; Jensen, Mark E.; Paustian, Steven J.; Parrott, Harry; Hill, Donley M. 1995. A hierarchical framework of aquatic ecological units in North America (Nearctic Zone). General Technical Report NC-176. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

    Keywords

    aquatic ecology, hierarchical classification, watershed, fish, mussels, streams, rivers, ground water, wetlands, lakes

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