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Tropospheric ozone alters solar-induced chlorophyll fluorescence and its relationship with gross primary production in a subtropical evergreen forest

文献类型：期刊论文

作者Chen, Jinghua5; Wang, Shaoqiang1,3,5; Zhu, Kai1,5; Chen, Bin1,5; Wang, Qinyi2; Zhang, Leiming1,5; Li, Yuelin4; Zheng, Chen1,5
刊名AGRICULTURAL AND FOREST METEOROLOGY
出版日期2025-09-15
卷号372页码:110695
关键词Tropospheric ozone Solar-induced chlorophyll fluorescence Gross primary production Vegetation structure and physiology Evergreen forest
ISSN号0168-1923
DOI10.1016/j.agrformet.2025.110695
产权排序1
文献子类Article
英文摘要Tropospheric ozone (O3), as a harmful air pollutant and greenhouse gas, is globally increasing in concentration, raising concerns about its detrimental effects on ecosystems. To develop scientific strategies for protecting vegetation from O3 damage, a comprehensive understanding of vegetation responses to O3 is essential. Solar-induced chlorophyll fluorescence (SIF) offers a novel approach to studying how plants respond to stress, yet the extent and mechanism by which SIF reflects vegetation changes under varying ambient O3 remain unclear. Using continuous and simultaneous observations of O3, SIF, and carbon fluxes in a subtropical evergreen forest, we investigated the response of canopy SIF to ambient O3 exposure and explored the underlying mechanisms of vegetation's response to O3. Our findings reveal that high ambient O3 alters both the canopy SIF and its relationship with GPP in the subtropical evergreen forest. Specifically, canopy SIF decreases when O3 concentrations exceed 60 ppb, but the threshold for a decrease in canopy SIF differs between the dry season (75 ppb) and the wet season (45 ppb), probably due to reduced stomatal conductance in the dry season, which limits O3 uptake by leaf. Furthermore, extremely high O3 concentrations decouple the linear SIF-GPP relationship (especially in wet season), indicating that high O3 exposure more strongly affects SIF and thus weakens the ability of SIF to track GPP dynamics. Our analysis of the decomposed radiative, structural, and physiological components shows that plant physiology is more vulnerable to O3 damage. This results in high O3 concentrations influencing the SIF-GPP relationship primarily through structure in the dry season and through plant physiology in the wet season. These findings highlight the ability of SIF for plant O3 stress detection and the different responses of structure and physiology under varying water conditions, which could effectively advance our understanding of plant O3 stress mechanisms across different climates.
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WOS关键词NET PRIMARY PRODUCTIVITY ; CARBON-DIOXIDE ; STOMATAL FLUX ; WINTER-WHEAT ; AIR-QUALITY ; PHOTOSYNTHESIS ; POLLUTION ; CLIMATE ; METAANALYSIS ; SENSITIVITY
WOS研究方向Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:001517402300001
出版者ELSEVIER
源URL[http://ir.igsnrr.ac.cn/handle/311030/215361]  
专题生态系统网络观测与模拟院重点实验室_外文论文
通讯作者Wang, Shaoqiang
作者单位1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China;
2.Hebei Acad Sci, Inst Geog Sci, Shijiazhuang 050011, Peoples R China;
3.Chinese Univ Geosci, Sch Geog & Informat Engn, Key Lab Reg Ecol Proc & Environm Evolut, Wuhan 430074, Peoples R China;
4.Chinese Acad Sci, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China
5.Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China;
推荐引用方式
GB/T 7714		 Chen, Jinghua,Wang, Shaoqiang,Zhu, Kai,et al. Tropospheric ozone alters solar-induced chlorophyll fluorescence and its relationship with gross primary production in a subtropical evergreen forest[J]. AGRICULTURAL AND FOREST METEOROLOGY,2025,372:110695.
APA Chen, Jinghua.,Wang, Shaoqiang.,Zhu, Kai.,Chen, Bin.,Wang, Qinyi.,...&Zheng, Chen.(2025).Tropospheric ozone alters solar-induced chlorophyll fluorescence and its relationship with gross primary production in a subtropical evergreen forest.AGRICULTURAL AND FOREST METEOROLOGY,372,110695.
MLA Chen, Jinghua,et al."Tropospheric ozone alters solar-induced chlorophyll fluorescence and its relationship with gross primary production in a subtropical evergreen forest".AGRICULTURAL AND FOREST METEOROLOGY 372(2025):110695.

入库方式： OAI收割

来源：地理科学与资源研究所

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