| Ozone deposition to an orange orchard: Partitioning between stomatal and non-stomatal sinks. | |
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MedLine Citation:
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PMID: 22341155 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Orange trees are widely cultivated in regions with high concentrations of tropospheric ozone. Citrus absorb ozone through their stomata and emit volatile organic compounds (VOC), which, together with soil emissions of NO, contribute to non-stomatal ozone removal. In a Valencia orange orchard in Exeter, California, we used fast sensors and eddy covariance to characterize water and ozone fluxes. We also measured meteorological parameters necessary to model other important sinks of ozone deposition. We present changes in magnitude of these ozone deposition sinks over the year in response to environmental parameters. Within the plant canopy, the orchard constitutes a sink for ozone, with non-stomatal ozone deposition larger than stomatal uptake. In particular, soil deposition and reactions between ozone, VOC and NO represented the major sinks of ozone. This research aims to help the development of metrics for ozone-risk assessment and advance our understanding of citrus in biosphere-atmosphere exchange. |
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Authors:
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Silvano Fares; Robin Weber; Jeong-Hoo Park; Drew Gentner; John Karlik; Allen H Goldstein |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-2-15 |
Journal Detail:
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Title: Environmental pollution (Barking, Essex : 1987) Volume: - ISSN: 1873-6424 ISO Abbreviation: - Publication Date: 2012 Feb |
Date Detail:
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Created Date: 2012-2-20 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8804476 Medline TA: Environ Pollut Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 Elsevier Ltd. All rights reserved. |
Affiliation:
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University of California, Berkeley, Department of Environmental Science, Policy, and Management, United States; Agricultural Research Council (CRA), Research Center for the Soil Plant System, Via della Navicella 2-4, 00184 Rome, Italy. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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