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    Author(s): Kevin T. Smith; A. James. Downer
    Date: 2019
    Source: Western Arborist. Fall 2019: 28-32.
    Publication Series: Magazines or Trade Publications
    Station: Northern Research Station
    PDF: Download Publication  (627.0 KB)

    Description

    The sun bathes the earth in waves of radiated energy. The waves of radiation occur along the electromagnetic spectrum that includes microwaves, radio waves, visible light, and infrared heat. The visible portion of that spectrum is the rainbow formed by sunlight passing through a prism. Solar energy is increasingly used to power our homes, offices, and businesses. Trees and other green plants have been using solar energy for many millions of years. Plants use that radiant energy to make and break chemical bonds that provide the energy needed for growth and survival. Much of the solar radiation that reaches the earth's atmosphere is reflected or diffused. Less than 0.1% is available for plants. Of the light that actually reaches the leaves, about 1.5% is used to fuel plant growth.

    Publication Notes

    • Check the Northern Research Station web site to request a printed copy of this publication.
    • Our on-line publications are scanned and captured using Adobe Acrobat.
    • During the capture process some typographical errors may occur.
    • Please contact Sharon Hobrla, shobrla@fs.fed.us if you notice any errors which make this publication unusable.
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Smith, Kevin T.; Downer, A. James. 2019. Botany for arborists: energy and trees. Western Arborist. Fall 2019: 28-32.

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