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Landscape-level ecological regions: Linking state-level ecoregion frameworks with stream habitat classifications

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Abstract

Regionalization is a form of spatial classification, where boundaries are drawn around areas that are relatively homogeneous in landscape characteristics. The process of delineating ecological regions, or ecoregions, includes the analysis of ecosystem structure. To date, ecoregions have been developed at national and state scales for research and resource management. Stream classification is another method to order the variability of aquatic habitats that spans spatial scales from microhabitat to valley segment. In this study, landscape-level ecoregions are developed for the upper Grande Ronde River basin in northeastern Oregon, 3000 sq km in area. The ecoregion framework presented here is proposed to bridge the gap between stream habitat and state-level ecoregion classifications. Classification at this scale is meant to address issues of management at local scales: to aid in sampling design, in extrapolation of the results of site-specific studies, and in the development of best management practices that are more predictive of ecosystem response than current methods.

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  1. Dynamac International, Inc., US EPA Environmental Research Laboratory, 200 S.W. 35th St., 97333, Corvallis, Oregon, USA

    Sandra A. Bryce

  2. Department of Forest Science Forest Sciences Laboratory, Oregon State University, 97331, Corvallis, Oregon, USA

    Sharon E. Clarke

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  1. Sandra A. Bryce
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  2. Sharon E. Clarke
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Bryce, S.A., Clarke, S.E. Landscape-level ecological regions: Linking state-level ecoregion frameworks with stream habitat classifications. Environmental Management 20, 297–311 (1996). https://doi.org/10.1007/BF01203839

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