Browse by author
Lookup NU author(s): Dr Kirsten Wyness
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
Few studies have investigated effects of increased background ozone in the absence of episodic peaks, despite a predicted increase throughout the northern hemisphere over the coming decades. In this study Leontodon hispidus was grown with Anthoxanthum odoratum or Dactylis glomerata and exposed in the UK to one of eight background ozone concentrations for 20 weeks in solardomes. Seasonal mean ozone concentrations ranged from 21.4 to 102.5 ppb. Ozone-induced senescence of L. hispidus was enhanced when grown with the more open canopy of A. odoratum compared to the denser growing D. glomerata. There was increased cover with increasing ozone exposure for both A. odoratum and D. glomerata, which resulted in an increase in the grass:Leontodon cover ratio in both community types. Carry-over effects of the ozone exposure were observed, including delayed winter die-back of L. hispidus and acceleration in the progression from flowers to seed-heads in the year following ozone exposure.
Author(s): Hayes F, Mills G, Harmens H, Wyness K
Publication type: Article
Publication status: Published
Journal: Environmental Pollution
Year: 2011
Volume: 159
Issue: 10
Pages: 2420-2426
Print publication date: 01/10/2011
ISSN (print): 0269-7491
ISSN (electronic): 1873-6424
Publisher: Pergamon
URL: http://dx.doi.org/10.1016/j.envpol.2011.06.034
DOI: 10.1016/j.envpol.2011.06.034
Altmetrics provided by Altmetric
