Effects of air pollution on morphological and anatomical characteristics of Pinus Eldarica Wood

  • Authors: Safdari, Vahidreza; Ahmed, Moinuddin; Devall, Margaret S.; Bayramzadeh, Vilma
  • Publication Year: 2012
  • Publication Series: Scientific Journal (JRNL)
  • Source: Fuuast Journal of Bilology 2(2):5-12


Air pollution, including automobile exhaust pollution, can affect anatomical and morphological characteristics of wood. In order to evaluate this subject, the Pinus eldarica trees of Chitgar Park in Tehran, which extends from a crowded highway in the south (polluted site) to the semi polluted midsection and to Alborz Mountain in the north (unpolluted site) were sampled with an increment borer and cores were collected. After cross dating, the tree rings of the last five years were separated from the rest of the core. Anatomical characteristics of the cross sections, including the transition between early wood and latewood, the tangential thickness of the last-formed latewood tracheids, the frequency of rays and resin ducts and the morphological characteristics of tracheids in rings formed in the same year were studied. The results indicated that the ring widths of P. eldarica in the three zones are not significantly different. Rays and false rings were more frequent in the polluted and semi polluted sites than in the reference area, and wall thickness was significantly different in some years. Other morphological properties did not differ significantly except for tracheid diameted. In conclusion air pollution does not alter P. eldarica ring width significantly but changes some anatomical and morphological properties of its wood. Therefore trees growing on polluted sites are not suitable for Dendrochronological studies

  • Citation: Safdari,Vahidreza; Ahmed, Moinuddin;Devall,Margaret S.; Bayramzadeh,Vilma 2012. Effects of air pollution on morphological and anatomical characteristics of Pinus Eldarica Wood. Fuuast Journal of Bilology 2(2):5-12.
  • Posted Date: June 5, 2013
  • Modified Date: August 16, 2013
  • Print Publications Are No Longer Available

    In an ongoing effort to be fiscally responsible, the Southern Research Station (SRS) will no longer produce and distribute hard copies of our publications. Many SRS publications are available at cost via the Government Printing Office (GPO). Electronic versions of publications may be downloaded, printed, and distributed.

    Publication Notes

    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
    • Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
    • To view this article, download the latest version of Adobe Acrobat Reader.