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    Author(s): Scott L. Powell; Andrew J. Hansen; Warren B. Cohen
    Date: 2007
    Source: In: Dupont, A.; Jacobs, H., eds. Landscape Ecology Research Trends. Hauppauge, New York: Nova Science Publishers: 27-43
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (2.92 MB)

    Description

    The objective of this study was to quantity the extent and distribution of conifer cover increase in the Greater Yellowstone Ecosystem (GYE) between 1985 and 1999. In many locations across the GYE, conifer forests have increased in density and expanded into grasslands and shrub lands, but the actual extent of change is unknown. Accurate quantification is critical for assessment of ecological consequences, including biogeochemical cycling. The study area was located in the GYE, encompassing parts of Montana, Wyoming, and Idaho, U.S.A. We used a combination of aerial photos, Landsat satellite imagery, and statistical methods to quantity percent conifer cover and change across the study area between 1985 and 1999.

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    Citation

    Powell, Scott L.; Hansen, Andrew J.; Cohen, Warren B. 2007. Mapping the extent and distribution of conifer cover increase in the greater Yellowstone ecosystem. In: Dupont, A.; Jacobs, H., eds. Landscape Ecology Research Trends. Hauppauge, New York: Nova Science Publishers: 27-43.

    Keywords

    Landset TM, airborne imagery, remote sensing, change detection

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