Knowledge Management System Of Institute Of Botany,CAS
| Aerosol pollution alters the diurnal dynamics of sun and shade leaf photosynthesis through different mechanisms | |
Wang, Zhenhua1,2; Wang, Chengzhang2; Wang, Xin2; Wang, Bin2; Wu, Jin3,4; Liu, Lingli2
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| 2022 | |
| 发表期刊 | PLANT CELL AND ENVIRONMENT
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| ISSN | 0140-7791 |
| 卷号 | 45期号:10页码:2943-2953 |
| 摘要 | Anthropogenic aerosols have been shown to perturb CO2 exchange between the vegetation and the atmosphere. However, the climate effects of aerosols through carbon cycle feedback still have significant uncertainties. Taking advantage of the periodic fluctuations of aerosol loading in Beijing, we intensively measured the diurnal course of leaf microclimates and photosynthesis under different aerosol conditions during the growing season in 2014 and 2015. We found that increasing aerosol loadings altered the diurnal course of microclimates and thus sun and shade leaf photosynthesis. Our mechanistic photosynthesis model experiments further showed that aerosol-induced increase in sun leaf photosynthesis occurred around noon and afternoon, mainly by alleviating the depression of photosynthesis caused by high leaf temperature and leaf-air vapour pressure deficit. Meanwhile, aerosols enhanced shade leaf photosynthesis throughout the day by mitigating the light limitation within the canopy, with the highest increase occurring around noon. Overall, our study suggested that aerosol's diffuse fertilization effect, cooling effect and the accompanying low leaf-air vapour pressure deficit collectively drove the changes in the diurnal courses of sun and shade leaf photosynthesis. Our results provided an important benchmark for assessing how anthropogenic aerosols regulate ecosystem C balance under different meteorological conditions. |
| 关键词 | cooling effect diffuse radiation fertilization effect leaf temperature vapour pressure deficit |
| 学科领域 | Plant Sciences |
| DOI | 10.1111/pce.14411 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | NET ECOSYSTEM EXCHANGE ; ATMOSPHERIC PARTICLES ; TEMPERATURE RESPONSE ; PRIMARY PRODUCTIVITY ; PLANT PRODUCTIVITY ; DIFFUSE-RADIATION ; FOREST ; CLOUDS ; MODEL ; ASSIMILATION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| WOS记录号 | WOS:000837021300001 |
| 出版者 | WILEY |
| 文献子类 | Article |
| 出版地 | HOBOKEN |
| EISSN | 1365-3040 |
| 资助机构 | Youth Innovation Promotion Association of the Chinese Academy of Sciences [2020082] ; National Natural Science Foundation of China [31988102, 32125025, 32171500] ; Research Foundation of Ningde Normal University [2020Y09] ; Innovation and Technology Fund of the HKSAR, China |
| 作者邮箱 | lingli.liu@ibcas.ac.cn |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/28581 |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Ningde Normal Univ, Engn Technol Res Ctr Characterist Med Plants Fuji, Sch Life Sci, Ningde, Fujian, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Univ Hong Kong, Sch Biol Sci, Hong Kong, Peoples R China 5.Chinese Univ Hong Kong, State Key Lab Agrobiotechnol, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhenhua,Wang, Chengzhang,Wang, Xin,et al. Aerosol pollution alters the diurnal dynamics of sun and shade leaf photosynthesis through different mechanisms[J]. PLANT CELL AND ENVIRONMENT,2022,45(10):2943-2953. |
| APA | Wang, Zhenhua,Wang, Chengzhang,Wang, Xin,Wang, Bin,Wu, Jin,&Liu, Lingli.(2022).Aerosol pollution alters the diurnal dynamics of sun and shade leaf photosynthesis through different mechanisms.PLANT CELL AND ENVIRONMENT,45(10),2943-2953. |
| MLA | Wang, Zhenhua,et al."Aerosol pollution alters the diurnal dynamics of sun and shade leaf photosynthesis through different mechanisms".PLANT CELL AND ENVIRONMENT 45.10(2022):2943-2953. |
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