Environmental Management

, Volume 7, Issue 4, pp 365–373 | Cite as

Delineation of ecosystem regions

  • Robert G. Bailey


As a means of developing reliable estimates of ecosystem productivity, ecosystem classification needs to be placed within a geographical framework of regions or zones. This paper explains the basis for the regions delineated on the 1976 mapEcoregions of the United States. Four ecological levels are discussed—domain, division, province, and section—based on climatic and vegetational criteria. Statistical tests are needed to verify and refine map units.

Key words

Ecoregions Ecosystems Ecological land classification Mapping Site production 


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Copyright information

© Springer-Verlag New York Inc 1983

Authors and Affiliations

  • Robert G. Bailey
    • 1
  1. 1.Rocky Mountain Forest and Range Experiment StationUSDA Forest ServiceFort Collins

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