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Aerosol pollution alters the diurnal dynamics of sun and shade leaf photosynthesis through different mechanisms

文献类型：期刊论文

作者Wang, Zhenhua2,3; Wang, Chengzhang3; Wang, Xin3; Wang, Bin3; Wu, Jin1,4; Liu, Lingli3
刊名PLANT CELL AND ENVIRONMENT
出版日期2022
卷号45期号:10页码:2943-2953
关键词cooling effect diffuse radiation fertilization effect leaf temperature vapour pressure deficit
ISSN号0140-7791
DOI10.1111/pce.14411
文献子类Article
英文摘要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.
学科主题Plant Sciences
出版地HOBOKEN
电子版国际标准刊号1365-3040
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)
语种英语
WOS记录号WOS:000837021300001
出版者WILEY
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
源URL[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.Univ Hong Kong, Sch Biol Sci, Hong Kong, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
3.Ningde Normal Univ, Engn Technol Res Ctr Characterist Med Plants Fuji, Sch Life Sci, Ningde, Fujian, Peoples R China
4.Univ Chinese Acad Sci, Beijing, 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.

入库方式： OAI收割

来源：植物研究所

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