Simulation of ozone–vegetation coupling and feedback in China using multiple ozone damage schemes
<p>As a phytotoxic pollutant, surface ozone (<span class="inline-formula">O<sub>3</sub></span>) not only affects plant physiology but also influences meteorological fields and air quality by altering leaf stomatal functions. Previous studies revealed strong fe...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2024-04-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://acp.copernicus.org/articles/24/3973/2024/acp-24-3973-2024.pdf |
| _version_ | 1797225200812556288 |
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| author | J. Cao X. Yue M. Ma |
| author_facet | J. Cao X. Yue M. Ma |
| author_sort | J. Cao |
| collection | DOAJ |
| description | <p>As a phytotoxic pollutant, surface ozone (<span class="inline-formula">O<sub>3</sub></span>) not only affects plant physiology but also influences meteorological fields and air quality by altering leaf stomatal functions. Previous studies revealed strong feedbacks of <span class="inline-formula">O<sub>3</sub></span>–vegetation coupling in China but with large uncertainties due to the applications of varied <span class="inline-formula">O<sub>3</sub></span> damage schemes and chemistry–vegetation models. In this study, we quantify the <span class="inline-formula">O<sub>3</sub></span> vegetation damage and the consequent feedbacks to surface meteorology and air quality in China by coupling two <span class="inline-formula">O<sub>3</sub></span> damage schemes (S2007 vs. L2013) into a fully coupled regional meteorology–chemistry model. With different schemes and damaging sensitivities, surface <span class="inline-formula">O<sub>3</sub></span> is predicted to decrease summertime gross primary productivity by 5.5 %–21.4 % and transpiration by 5.4 %–23.2 % in China, in which the L2013 scheme yields 2.5–4 times of losses relative to the S2007 scheme. The damage to the photosynthesis of sunlit leaves is <span class="inline-formula">∼</span> 2.6 times that of shaded leaves in the S2007 scheme but shows limited differences in the L2013 scheme. Though with large discrepancies in offline responses, the two schemes yield a similar magnitude of feedback to surface meteorology and <span class="inline-formula">O<sub>3</sub></span> air quality. The <span class="inline-formula">O<sub>3</sub></span>-induced damage to transpiration increases national sensible heat by 3.2–6.0 <span class="inline-formula">W m<sup>−2</sup></span> (8.9 % to 16.2 %), while reducing latent heat by 3.3–6.4 <span class="inline-formula">W m<sup>−2</sup></span> (<span class="inline-formula">−</span>5.6 % to <span class="inline-formula">−</span>17.4 %), leading to a 0.2–0.51 <span class="inline-formula">°C</span> increase in surface air temperature and a 2.2 %–3.9 % reduction in relative humidity. Meanwhile, surface <span class="inline-formula">O<sub>3</sub></span> concentrations on average increase by 2.6–4.4 <span class="inline-formula">µg m<sup>−3</sup></span>, due to the inhibitions of stomatal uptake and the anomalous enhancement in isoprene emissions, the latter of which is attributed to the surface warming by <span class="inline-formula">O<sub>3</sub></span>–vegetation coupling. Our results highlight the importance of <span class="inline-formula">O<sub>3</sub></span> control in China due to its adverse effects on ecosystem functions, global warming, and <span class="inline-formula">O<sub>3</sub></span> pollution through <span class="inline-formula">O<sub>3</sub></span>–vegetation coupling.</p> |
| first_indexed | 2024-04-24T14:05:14Z |
| format | Article |
| id | doaj.art-424160173a414e7193f85c92ad42790b |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-04-24T14:05:14Z |
| publishDate | 2024-04-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-424160173a414e7193f85c92ad42790b2024-04-03T10:35:32ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242024-04-01243973398710.5194/acp-24-3973-2024Simulation of ozone–vegetation coupling and feedback in China using multiple ozone damage schemesJ. Cao0X. Yue1M. Ma2Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology (NUIST), Nanjing, 210044, ChinaJiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology (NUIST), Nanjing, 210044, ChinaState Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210044, China<p>As a phytotoxic pollutant, surface ozone (<span class="inline-formula">O<sub>3</sub></span>) not only affects plant physiology but also influences meteorological fields and air quality by altering leaf stomatal functions. Previous studies revealed strong feedbacks of <span class="inline-formula">O<sub>3</sub></span>–vegetation coupling in China but with large uncertainties due to the applications of varied <span class="inline-formula">O<sub>3</sub></span> damage schemes and chemistry–vegetation models. In this study, we quantify the <span class="inline-formula">O<sub>3</sub></span> vegetation damage and the consequent feedbacks to surface meteorology and air quality in China by coupling two <span class="inline-formula">O<sub>3</sub></span> damage schemes (S2007 vs. L2013) into a fully coupled regional meteorology–chemistry model. With different schemes and damaging sensitivities, surface <span class="inline-formula">O<sub>3</sub></span> is predicted to decrease summertime gross primary productivity by 5.5 %–21.4 % and transpiration by 5.4 %–23.2 % in China, in which the L2013 scheme yields 2.5–4 times of losses relative to the S2007 scheme. The damage to the photosynthesis of sunlit leaves is <span class="inline-formula">∼</span> 2.6 times that of shaded leaves in the S2007 scheme but shows limited differences in the L2013 scheme. Though with large discrepancies in offline responses, the two schemes yield a similar magnitude of feedback to surface meteorology and <span class="inline-formula">O<sub>3</sub></span> air quality. The <span class="inline-formula">O<sub>3</sub></span>-induced damage to transpiration increases national sensible heat by 3.2–6.0 <span class="inline-formula">W m<sup>−2</sup></span> (8.9 % to 16.2 %), while reducing latent heat by 3.3–6.4 <span class="inline-formula">W m<sup>−2</sup></span> (<span class="inline-formula">−</span>5.6 % to <span class="inline-formula">−</span>17.4 %), leading to a 0.2–0.51 <span class="inline-formula">°C</span> increase in surface air temperature and a 2.2 %–3.9 % reduction in relative humidity. Meanwhile, surface <span class="inline-formula">O<sub>3</sub></span> concentrations on average increase by 2.6–4.4 <span class="inline-formula">µg m<sup>−3</sup></span>, due to the inhibitions of stomatal uptake and the anomalous enhancement in isoprene emissions, the latter of which is attributed to the surface warming by <span class="inline-formula">O<sub>3</sub></span>–vegetation coupling. Our results highlight the importance of <span class="inline-formula">O<sub>3</sub></span> control in China due to its adverse effects on ecosystem functions, global warming, and <span class="inline-formula">O<sub>3</sub></span> pollution through <span class="inline-formula">O<sub>3</sub></span>–vegetation coupling.</p>https://acp.copernicus.org/articles/24/3973/2024/acp-24-3973-2024.pdf |
| spellingShingle | J. Cao X. Yue M. Ma Simulation of ozone–vegetation coupling and feedback in China using multiple ozone damage schemes Atmospheric Chemistry and Physics |
| title | Simulation of ozone–vegetation coupling and feedback in China using multiple ozone damage schemes |
| title_full | Simulation of ozone–vegetation coupling and feedback in China using multiple ozone damage schemes |
| title_fullStr | Simulation of ozone–vegetation coupling and feedback in China using multiple ozone damage schemes |
| title_full_unstemmed | Simulation of ozone–vegetation coupling and feedback in China using multiple ozone damage schemes |
| title_short | Simulation of ozone–vegetation coupling and feedback in China using multiple ozone damage schemes |
| title_sort | simulation of ozone vegetation coupling and feedback in china using multiple ozone damage schemes |
| url | https://acp.copernicus.org/articles/24/3973/2024/acp-24-3973-2024.pdf |
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