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    Author(s): Ronald E. ​McRoberts
    Date: 2017
    Source: In: Barreiro, Susana; Schelhaas, Mart-Jan; McRoberts, Ronald E.; Kandler, Gerald. Forest inventory-based projection systems for wood and biomass availability. Dodrecht, Netherlands: Springer: 315-323. Chapter 27.
    Publication Series: Book Chapter
    Station: Northern Research Station
    PDF: View PDF  (1.0 MB)

    Description

    ln the United States of America (USA), forest land is defined with respect to four criteria: (1) minimum area of 0.4 ha, (2) minimum crown cover of 10%, (3) minimum width of 36.6 m, and (4) forest use. Total forest land currently exceeds 310 million ha and has generally been increasing since the 1920s, despite a near tripling of the human population. Currently, more than 30% of the country is characterized as forest land with 58% of it in various categories of private ownership. Unlike in many European countries, private forest land owners in the USA have considerable freedom to convert their land from forest to non-forest uses and vice-versa in response to varying commodity prices and other factors. This feature of private land ownership at least partially explains substantially varying local forest areas over time.

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    ​McRoberts, Ronald E. 2017. United States of America. In: Barreiro, Susana; Schelhaas, Mart-Jan; McRoberts, Ronald E.; Kandler, Gerald. Forest inventory-based projection systems for wood and biomass availability. Dodrecht, Netherlands: Springer: 315-323. Chapter 27. https://doi.org/10.1007/978-3-319-56201-8_27.

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https://www.fs.usda.gov/treesearch/pubs/56477