Basin level ecological regions of the upper Grande Ronde River Public

http://ir.library.oregonstate.edu/concern/graduate_projects/n296wz986

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  • Ecological regionalization is a form of spatial classification, where boundaries are drawn around areas relatively homogeneous in landscape characteristics. In the delineation of ecological regions, or ecoregions, the process includes the analysis of ecosystem structure and function. 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, ecoregions are developed at the scale of a large watershed (3000 square kilometers), the upper Grande Ronde River basin in northeastern Oregon. The ecoregion framework presented here is proposed to bridge the gap between stream and ecoregions classification. The classification at this scale is meant to address issues of management at local scales: to aid in sample design, extrapolation of the results of site-specific studies and the development of best management practices that are predictive of ecosystem response.
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