期刊
ENVIRONMENTAL POLLUTION
卷 155, 期 3, 页码 391-397出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2008.01.038
关键词
ozone; biogenic VOCs; molecular signalling; surface wetness; aerosol deposition
资金
- Natural Environment Research Council [ceh010023] Funding Source: researchfish
The effects of ozone and other photochemical oxidants on individual trees have been studied for several decades, but there has been much less research on the potential effects on entire forest ecosystems. Given that ozone and other oxidants affect the production and subsequent fare of biogenic volatile organic compounds that act as signalling molecules, there is a need for more detailed study of the role of oxidants in modifying trophic interactions in forests. Deposition of fine particulates to forests may act as a source of nutrients, but also changes leaf surface properties, increasing the duration of surface wetness and modifying the habitat for epiphytic organisms, leading to increased risks from pathogens. Even where this pathway contributes a relatively small input of nutrients to forests. the indirect effects on canopy processes and subsequent deposition to the forest floor in throughfall and litter may play a more important role that has yet to be fully investigated. (C) 2008 Elsevier Ltd. All rights reserved.
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