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Aboveground Phenology in North Florida Slash Pine Plantations

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Abstract:

Seasonality of aboveground growth and reproduction, its relationship to environmental conditions, and the composition and development of the understory were studied for 2 years on young and mature slash pine (Pinus elliottii var. elliottii Engelm) plantations in north Florida. Despite relatively mild environmental conditions year-round, tree and understory growth were strongly unimodal, peaking in late spring-early summer when air and soil temperatures and precipitation were highest. Length of spring shoots in pines appeared to be directly related to soil temperature and precipitation of the previous fall-winter when winter buds were forming. Presence of summer shoots appeared to be dependent upon the environmental conditions of the current growing season, age of the tree, and branch position in the canopy. Site preparation practices, notably chopping and burning, in part dictated the species composition and development of the understory until about midrotation, at which time shading and forest floor development became more important. Fine root studies reflected the same compositional changes as seen above ground. Although aboveground understory biomass was a small fraction of pine biomass by midrotation, pine and understory fine root biomass and foliar turnover rates were comparable. Forest Sci. 32:779-788.

Keywords: Pinus elliottii; plantation understory conditions

Document Type: Journal Article

Affiliations: Associate Professor, School of Forest Resources and Conservation, University of Florida, Gainesville, FL 32611

Publication date: 1986-09-01

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

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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