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    Author(s): Sara Goeking; Gretchen Moisen; Kevin Megown; Jason Toombs
    Date: 2009
    Source: In: McRoberts, Ronald E.; Reams, Gregory A.; Van Deusen, Paul C.; McWilliams, William H., eds. Proceedings of the eighth annual forest inventory and analysis symposium; 2006 October 16-19; Monterey, CA. Gen. Tech. Report WO-79. Washington, DC: U.S. Department of Agriculture, Forest Service. 351-354.
    Publication Series: General Technical Report (GTR)
    Station: Washington Office
    PDF: View PDF  (712.79 KB)

    Description

    Interior West Forest Inventory and Analysis has developed prefield protocols to distinguish forested plots that require field visits from nonforested plots that do not require field visits. Recent innovations have increased the efficiency of the prefield process. First, the incorporation of periodic inventory data into a prefield database increased the amount of information available for making accurate forest or nonforest determinations. Second, acquisition of low-altitude aerial photography proved to be a cost-effective method of verifying forest or nonforest status. Third, tools based on geographic information system technology have decreased the time required to complete the prefield process. Comparisons of field data with prefield determinations verify the prefield process as a cost-effective method of focusing data collection efforts on forested plots.

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    Citation

    Goeking, Sara; Moisen, Gretchen; Megown, Kevin; Toombs, Jason. 2009. Prefield methods: streamlining forest or nonforest determinations to increase inventory efficiency. In: McRoberts, Ronald E.; Reams, Gregory A.; Van Deusen, Paul C.; McWilliams, William H., eds. Proceedings of the eighth annual forest inventory and analysis symposium; 2006 October 16-19; Monterey, CA. Gen. Tech. Report WO-79. Washington, DC: U.S. Department of Agriculture, Forest Service. 351-354.

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