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    Author(s): John K. Francis; James B. Baker
    Date: 1981
    Source: Res. Note SO-278. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 4 p.
    Publication Series: Research Note (RN)
    Station: Southern Forest Experiment Station
    PDF: View PDF  (89 KB)

    Description

    For the first 4 years, height increment of an eastern cottonwood plantation on a clayey soil was greatest in the first growing season; diameter growth was greatest in the second growing season; and annual production of biomass was greatest in the third year. Nitrogen, phosphorus, and possibly magnesium are translocated from leaves into bark and other tissue before leaf abscission in the fall. There is no evidence for translocation of potassium or calcium. While removal of nutrients per ton of biomass would be greatest the first year, loss per hectare would be as great or greater in later years, due to higher annual yield. Whole-tree chipping would remove considerably more nutrients from the site than harvesting of boles only. After year 2, there is little difference in nutrient loss between summer and winter bole removal.

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    Citation

    Francis, John K.; Baker, James B. 1981. Biomass and Nutrient Accumulation in a Cottonwood Plantation - The First Four Years. Res. Note SO-278. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 4 p.

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    Keywords

    Populus deltoides Bartr., nutrient cycling, nutrient translocation

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