Ozone (O3)

Ozone :: Woodland and hedgerows

Effects and Implications

  • Visible leaf injury and/or premature leaf die-back, which could subsequently result in reduced growth during a growing season;
  • Reduced growth of sensitive species;
  • Potential alterations in numbers and timing of flowering and seed production;
  • Alterations of response to other environmental stresses such as drought stress
  • Enhanced susceptibility to pests and diseases.
  • Alterations to litter quality, which could affect decomposition

Ozone :: Grasslands

Effects and Implications

  • Visible leaf injury and/or premature leaf die-back, which could subsequently result in reduced growth during a growing season;
  • Reduced growth of sensitive species;
  • Alterations in numbers and timing of flowering and seed production;
  • Alterations of response to other environmental stresses such as drought stress
  • Enhanced susceptibility to pests and diseases.

Ozone :: Freshwater

Effects and Implications

Submerged plants and other species are not anticipated to be directly affected by ozone pollution. Emergent vegetation associated with freshwater habitats may be vulnerable but evidence for freshwater species is lacking.

Ozone :: Coastal and Rocky Habitats

Effects and Implications

  • Visible leaf injury and/or premature leaf die-back, which could subsequently result in reduced growth during a growing season;
  • Reduced growth of sensitive species;
  • Potential alterations in numbers and timing of flowering and seed production;
  • Alterations of response to other environmental stresses such as drought stress;
  • Potential enhanced susceptibility to pests and diseases.

Ozone :: Bogs, wetland and heath

Effects and Implications

  • Visible leaf injury and/or premature leaf die-back, which could result in reduced growth during a growing season;
  • Reduced growth of sensitive species;
  • Potential alterations of response to other environmental stresses, for example drought stress in heaths;
  • Alterations in emissions of greenhouse gases such as methane, but the direction of change is not conclusive;
  • Potential enhanced susceptibility to pests and diseases.

Ozone :: Arable and horticultural

Effects and implications

  • Visible leaf injury can reduce the value of horticultural crops;
  • Visible leaf injury and/or premature leaf die-back can result in reduced growth during a growing season;
  • Reduced growth and yield (both quantity and quality) of sensitive species;
  • Potential alterations in numbers and timing of flowering and seed production;
  • Alterations of response to other environmental stresses such as drought stress;
  • Potential enhanced susceptibility to pests and diseases.

O3 :: Woolly Hair Moss

Impact Type: Direct exposure to pollutant

Key Concerns:

The magnitude of O3 impacts on bryophytes in the UK is currently very uncertain. The largest O3 concentrations occur at high altitude sites, and the most severe bryophyte impacts are therefore expected for species at Scottish mountain sites. However, with the exception of the experimental studies of Potter et al. (1996a,b) and others, there has been little demonstration of actual species responses in the field.

O3 :: Sphagnum moss

Impact Type: Direct exposure to pollutant

Key Concerns:

There have been a number of papers published on the effects of O3 on Sphagnum spp. (Gagnon & Karnosky 1992, Lee et al. 1998, Potter et al. 1996a,b). Most of these are based on fumigation experiments either in controlled-environment chambers or open-top chambers.

Pages

Subscribe to RSS - Ozone (O3)

This page was accessed on Saturday, July 21, 2018 05:26