In natural environment with ambient air, ginkgo trees emitted volatile organic compounds 0.18 μg g−1 h−1 in July, and 0.92 μg g−1 h−1 in September. Isoprene and limonene were the most abundant detected compounds. In September, α-pinene accounted for 22.5% of the total. Elevated CO2 concentration in OTCs increased isoprene emission significantly in July (p < 0.05) and September (p < 0.05), while the total monoterpenes emission was enhanced in July and decreased in September by elevated CO2. Exposed to elevated O3 increased the isoprene and monoterpenes emissions in July and September, and the total volatile organic compounds emission rates were 0.48 μg g−1 h−1 (in July) and 2.24 μg g−1 h−1 (in September), respectively. The combination of elevated CO2 and O3 did not have any effect on biogenic volatile organic compounds emissions, except increases of isoprene and Δ3-carene in September.
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This research was supported by the 2nd International Conference on Pollution Ecology. The authors wish to express their appreciation to Prof. Dali Tao, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China, for his helpful suggestions and constructive review for this manuscript.
Foundation item: The National Natural Science Foundation of China (No. 90411019).
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Li, D., Chen, Y., Shi, Y. et al. Impact of Elevated CO2 and O3 Concentrations on Biogenic Volatile Organic Compounds Emissions from Ginkgo biloba . Bull Environ Contam Toxicol 82, 473–477 (2009). https://doi.org/10.1007/s00128-008-9590-7
- Elevated CO2 and O3
- Biogenic volatile organic compounds