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Imputation and Model-Based Updating Techniques for Annual Forest Inventories

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Abstract:

The USDA Forest Service is developing an annual inventory system to establish the capability of producing annual estimates of timber volume and related variables. The inventory system features measurement of an annual sample of field plots with options for updating data for plots measured in previous years. One imputation and two model-based updating techniques are described and evaluated with respect to the bias and precision of their annual estimates of basal area per unit area. The evaluations indicate that simple plot-level imputation and model-based updating techniques produce adequately unbiased and precise estimates of annual mean basal area per unit area for large areas. FOR. SCI. 47(3):322–330.

Keywords: Growth models; environmental management; forest; forest management; forest resources; forestry; forestry research; forestry science; natural resource management; natural resources; remote sensing; simulation

Document Type: Miscellaneous

Affiliations: Mathematical Statistician North Central Research Station, USDA Forest Service, 1992 Folwell Avenue, St. Paul, MN, 55108, Phone: (651) 649-5174; Fax: (651) 649-5285 rmcroberts@fs.fed.us

Publication date: August 1, 2001

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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