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    • Journal of Range Management, Volume 51 (1998)
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    Understory plant response to site preparation and fertilization of loblolly and shortleaf pine forests

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    Author
    Brockway, D. G.
    Wolters, G. L.
    Pearson, H. A.
    Thill, R. E.
    Baldwin, V. C.
    Martin, A.
    Issue Date
    1998-01-01
    Keywords
    chopping
    Arkansas
    subsoil
    site preparation
    windrowing
    cultivation
    interspecific competition
    Pinus taeda
    phosphorus fertilizers
    2,4-D
    Paspalum
    legumes
    understory
    ecological succession
    forest plantations
    Louisiana
    prescribed burning
    forbs
    biomass production
    shrubs
    Texas
    Pinus
    canopy
    grasses
    forage
    soil texture
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    Citation
    Brockway, D. G., Wolters, G. L., Pearson, H. A., Thill, R. E., Baldwin, V. C., & Martin, A. (1998). Understory plant response to site preparation and fertilization of loblolly and shortleaf pine forests. Journal of Range Management, 51(1), 47-54.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644188
    DOI
    10.2307/4003563
    Additional Links
    https://rangelands.org/
    Abstract
    In developing an improved understanding of the dynamics of understory plant composition and productivity in Coastal Plain forest ecosystems, we examined the influence of site preparation and phosphorus fertilization on the successional trends of shrubs and herbaceous plants growing on lands of widely ranging subsoil texture in Arkansas, Louisiana, and Texas which are managed for southern pine production. Burn-inject, chop-burn, chop-burn-disk, double-chop, shear-burn, shear-windrow, and shear-windrow-disk site preparation methods were applied in a completely randomized split-plot design to sites with subsoil textures consisting of loam, gravelly-clay, silt, silty-clay, and clay, both fertilized with 73.4 kg P/ha and unfertilized. Site preparation method, subsoil texture, and fertilization influenced production of paspalums and other forbs the first growing season following treatment, but no treatment combination affected plant groups in subsequent years. Total herbaceous production increased 24 to 35-fold over pretreatment levels the first growing season after treatment. While site preparation methods had little influence on herbaceous biomass, subsoil texture affected herbaceous production the first year after treatment, with loam subsoils being most productive. Although annual composites were the most abundant herbaceous group the first year after treatment, they were largely replaced by perennial grasses by the third post-treatment growing season. By the seventh growing season following treatment, herbaceous production declined on all subsoil textures with composition and yield approximating pretreatment estimates. Subsoil texture influenced shrub density only in the first and third growing seasons after treatment. During the first few years after site preparation, herbaceous production appeared inversely related to shrub density. In the first and third post-treatment growing seasons, fertilization significantly increased total herbaceous production and biomass of composites and legumes. But 7 years after application, total herbaceous production and biomass of bluestems, other grasses, and sedges was greater on unfertilized areas. The absence of differences among treatments by the seventh post-treatment growing season indicates an overall long-term similarity in the degree of disturbance caused by application of each method in this ecosystem.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4003563
    Scopus Count
    Collections
    Journal of Range Management, Volume 51, Number 1 (January 1998)

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