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Data · dataset · 2026

Attribution of Meteorological Variability, Land-Cover/LAI Change, and O<sub>3</sub>‑Induced Stomatal Regulation to Summer Biogenic VOC Emissions in China during 2013–2023

Listed in ZivaHub and Deakin Research Online — shown once because both records carry DOI 10.1021/acs.est.6c08544.s001

Biogenic volatile organic compounds (BVOCs) strongly influence atmospheric oxidation capacity, ozone (O<sub>3</sub>) formation, and secondary organic aerosol production.

Description

In China, BVOC emissions are being reshaped by concurrent meteorological variability, land-cover changes, and increasing surface O<sub>3</sub> pollution, yet their relative contributions remain unclear. Here, we developed an improved WRF-MCIP-BEIS modeling framework incorporating O<sub>3</sub>-induced stomatal regulation through the canopy energy-balance pathway, and integrated O<sub>3</sub>-on/O<sub>3</sub>-off experiments, factorial scenarios, and Shapley decomposition to attribute summer BVOC emission changes across China during 2013–2023.

BVOC emissions exhibited strong regional heterogeneity, with relatively high summer emissions occurring in Southwest China (2019.3 kt summer<sup>–1</sup>), East China (1601.4 kt summer<sup>–1</sup>), and South China (1223.6 kt summer<sup>–1</sup>). O<sub>3</sub>-induced stomatal regulation consistently enhanced summer BVOC emissions, increasing national total emissions by 17.9 kt summer<sup>–1</sup> in 2013 and 29.1 kt summer<sup>–1</sup> in 2023, although the relative effect remained modest (0.20–0.31%).

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Species-level responses were more pronounced: isoprene showed the strongest sensitivity to O<sub>3</sub>-induced stomatal regulation, with relative increases of 0.36–0.55%, approximately two to three times larger than those of other BVOC groups. Shapley decomposition revealed that BVOC emission changes were primarily governed by competing meteorological and land-cover/LAI effects, with national mean contributions of approximately −558.0 and +454.3 kt summer<sup>–1</sup>, respectively, whereas O<sub>3</sub>-induced stomatal regulation accounted for a much smaller but systematic positive scenario-based contribution (+7.6 kt summer<sup>–1</sup>).

These findings demonstrate that O<sub>3</sub>-induced stomatal regulation introduces a modest but chemically relevant vegetation feedback through the canopy energy-balance pathway, while meteorological variability and land-cover/LAI changes remain the dominant controls on long-term summer BVOC variability.

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Provenance · 2 source records, 19 field assertions
SourceKeyLast seenRaw
ZivaHuboai:figshare.com:article/3403026310 d agoJSON v1
Deakin Research Onlineoai:figshare.com:article/3403026310 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0
concepts[field].anzsrc:group:3103mapping · zivahub uct ac zavocabulary-mapper@1.0.0keywords['Ecology']
concepts[field].anzsrc:group:3103mapping · dro deakin edu auvocabulary-mapper@1.0.0keywords['Ecology']
concepts[field].anzsrc:group:4410mapping · zivahub uct ac zavocabulary-mapper@1.0.0keywords['Sociology']
concepts[field].anzsrc:group:4410mapping · dro deakin edu auvocabulary-mapper@1.0.0keywords['Sociology']
concepts[field].local:field:chemistrymapping · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0
concepts[field].local:field:chemistrymapping · dro deakin edu auconnector:dro_deakin_edu_au@1.0.0
concepts[field].local:field:earth-environmentalmapping · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0
concepts[field].local:field:earth-environmentalmapping · dro deakin edu auconnector:dro_deakin_edu_au@1.0.0
concepts[field].local:field:life-sciencesmapping · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0
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concepts[field].local:field:ocean-atmosphericmapping · dro deakin edu auconnector:dro_deakin_edu_au@1.0.0
concepts[field].local:field:social-sciencemapping · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0
concepts[field].local:field:social-sciencemapping · dro deakin edu auconnector:dro_deakin_edu_au@1.0.0
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