Barbara Baesso Moura, E. Carrari, Laurence Dalstein-Richier, P. Sicard, Ș. Leca, O. Badea, Diana Pitar-Silaghi, A. Shashikumar, M. Ciriani, E. Paoletti, Y. Hoshika
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引用次数: 3
Abstract
ABSTRACT Tropospheric ozone (O3) is a phytotoxic air pollutant and the O3-induced visible foliar injury (O3 VFI) is a biomarker. A recently developed Free-air O3 eXposure (FO3X) is a promising facility to verify field-observed “O3-like” VFIs and to establish a flux-based threshold for the O3 VFI onset. The present study compared O3-like VFI registered in the southern European forest sites with actual O3 VFI observed in a FO3X experiment. The O3-like VFIs were evaluated by eye in forests and thus it was subjective. According to the imaging analysis, we firstly demonstrated that major parts of the colors were similar in the field and the FO3X. The color pallets for O3 VFI was species-specific and considered a advanced tool for the O3 VFI diagnosis. In addition, we calculated a flux-based threshold for the O3 VFI onset at the FO3X based on a Phytotoxic Ozone Dose (POD1), which ranged from 4.9 to 18.1 mmol m−2 POD1. This FO3X-derived threshold partly explained but did not necessarily match with the observation for several tree species in actual forests. The multivariate analysis showed that O3 VFI was decreased by the presence of various species and suggested the importance of continuous monitoring activities in the field for the further analysis.
期刊介绍:
Ecosystem Health and Sustainability publishes articles on advances in ecology and sustainability science, how global environmental change affects ecosystem health, how changes in human activities affect ecosystem conditions, and system-based approaches for applying ecological science in decision-making to promote sustainable development. Papers focus on applying ecological theory, principles, and concepts to support sustainable development, especially in regions undergoing rapid environmental change. Papers on multi-scale, integrative, and interdisciplinary studies, and on international collaborations between scientists from industrialized and industrializing countries are especially welcome.
Suitable topics for EHS include:
• Global, regional and local studies of international significance
• Impact of global or regional environmental change on natural ecosystems
• Interdisciplinary research involving integration of natural, social, and behavioral sciences
• Science and policy that promote the use of ecological sciences in decision making
• Novel or multidisciplinary approaches for solving complex ecological problems
• Multi-scale and long-term observations of ecosystem evolution
• Development of novel systems approaches or modeling and simulation techniques
• Rapid responses to emerging ecological issues.