WASHINGTON, Sept. 1 -- The U.S. Department of the Interior Geological Survey issued the following abstract of an article:

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Perspectives and Insights Gained from Applying Landscape Ecological Approaches to the Upper Mississippi Riverscape

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Advances in remote sensing, spatial data collection, hydraulic and geospatial models, and the maturation of landscape ecology during the early 2000s spurred the concept of rivers as landscapes or 'r . . .

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