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Effects of elevated atmospheric CO2 concentration on biogenic volatile organic compound emission from woody plants.

LAI Jin-mei1, PAN Ruo-qi1, LIU Yan-fei1, HUANG Xing-ran1, FANG Xiong1, JIN Shao-fei2, YI Zhi-gang1*   

  1. (1Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; 2Department of Geography, Minjiang University, Fuzhou 350108, China).
  • Online:2020-03-10 Published:2020-03-10

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Abstract: Biogenic volatile organic compounds (BVOCs) play an important role in the formation of near-surface ozone and secondary organic aerosols. Elevated atmospheric CO2 concentration can significantly affect the BVOCs emission from plants. We carried out a meta-analysis with the related published data. Our results showed that: (1) BVOCs emission from different woody plants (evergreen vs. deciduous) significantly decreased with elevated atmospheric CO2 concentration. (2) In terms of different functional types, increased atmospheric CO2 concentration mainlyreduced the BVOCs emission from deciduous plants but increased that from evergreen plants. (3) For BVOCs species from plants, elevated atmospheric CO2 concentration significantly reduced isoprene emissions from deciduous and evergreen plants, while it had no effect on monoterpene emissions. Our results can provide a basis for clarifying the response of BVOCs emission from terrestrial ecosystems to the elevated atmospheric CO2 concentration.