Ozone and Its Known and Potential Effects on Forests in Eastern United States

  • J. M. Skelly
  • A. H. Chappelka
  • J. A. Laurence
  • T. S. Fredericksen
Part of the Ecological Studies book series (ECOLSTUD, volume 127)


Tropospheric ozone is considered by many as the most important anthropogenic air pollutant confronting the forests of eastern United States. From the late 1970s through to the early 1990s, hundreds of investigations were initiated to investigate the potential role of acidic depositions as a direct cause of several notable declines of forest tree species indigenous to eastern United States (McLaughlin 1985). However, the review of the literature, regarding the existence of many previously described decline-type diseases, and the results of numerous investigations in the 1980s clearly demonstrated that many forest insects, pathogens, and abiotic stresses were parts of the causal complexes of the reported declines (Manion and Lachance 1992; Skelly and Innes 1994). Three of the six major conclusions of the National Acid Precipitation Assessment Program (NAPAP) “State of Science Report No. 16” addressing forest health and productivity in the US and Canadian forests are pertinent to this chapter. These three conclusions succinctly stated that:

This chapter briefly describes:
  1. 1.

    Ozone is the pollutant of greatest current concern with respect to regional scale in North American forests.

  2. 2.

    Compared to ozone and many nonpollutant stress factors, acidic deposition appears to be a relatively minor factor affecting the health and productivity of most forests in the United States and Canada

  3. 3.

    The vast majority of forests in the United States and Canada are not affected by decline.(Barnard et al. 1989)



Ozone Exposure Black Cherry Yellow Poplar Ambient Ozone Foliar Injury 
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© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • J. M. Skelly
  • A. H. Chappelka
  • J. A. Laurence
  • T. S. Fredericksen

There are no affiliations available

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