Inundation depth controls leaf photosynthetic capacity by regulating leaf area and N content in an estuarine wetland
Wang, Lianjing1,2,3; Zhao, Mingliang1,2; Wei, Siyu1,2,3; Song, Weimin1,2; Chu, Xiaojing1,2; Li, Peiguang1,2; Wang, Xiaojie1,2; Zhang, Xiaoshuai1,2; Cao, Qixue4; Han, Guangxuan1,2,3
Source PublicationPLANT AND SOIL
ISSN0032-079X
2023-10-31
Pages16
KeywordEstuarine wetland Inundation depth Leaf area Leaf N content Photosynthetic capacity
DOI10.1007/s11104-023-06368-x
Corresponding AuthorHan, Guangxuan(gxhan@yic.ac.cn)
AbstractBackground and AimsEstuarine wetlands are important carbon sinks, with plant photosynthesis being a vital component of this process. Changes in the inundation depth of wetlands could alter leaf photosynthesis and thus ecosystem carbon uptake capacity, ultimately determining the size of carbon sink. However, the relationship between inundation depth and photosynthetic capacity has yet to be determined, especially in estuarine wetlands with complex hydrological conditions. In addition, there is also conflicting evidence regarding the effect of inundation depth on photosynthetic capacity.MethodsTo better understand the mechanisms of photosynthetic capacity responding to inundation depth, we performed a field experiment with a gradient of inundation depths (0, 5, 10, 20, 30 and 40 cm) in estuarine wetland dominated by Phragmites australis in the Yellow River Delta, China.ResultsOur results showed that inundation depth significantly altered leaf morphological traits, elements and photosynthetic capacity. In particular, leaf photosynthetic capacity was obviously increased with increasing inundation depth. The increased leaf area enhanced light harvesting ability of leaves, and then increased Pn at different inundation depths. Besides, higher leaf N content promoted leaf photosynthetic capacity at different inundation depths.ConclusionOverall, the findings demonstrated that inundation depth significantly enhanced the photosynthetic capacity of P. australis, which was correlated with altered leaf functional traits in wetlands. Our results hold important implications for more accurately predicting the relationship between photosynthetic capacity and inundation depth in wetland ecosystems under climate change and more accurately estimating of the carbon sink capacity of wetland ecosystems in the future.
Funding OrganizationThis research was supported by the Natural Science Foundation of China (U2106209, 42071126, U2243207), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDA23050202), and the International Science Partnership Program of the Chines ; Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; International Science Partnership Program of the Chinese Academy of Sciences ; Yellow River Delta Ecological Research Station of Coastal Wetland ; Chinese Academy of Sciences
Indexed BySCI
Language英语
WOS KeywordTERRESTRIAL ECOSYSTEMS ; CNP STOICHIOMETRY ; COASTAL WETLANDS ; LOESS PLATEAU ; WATER DEPTH ; NITROGEN ; PHOSPHORUS ; CARBON ; PRODUCTIVITY ; SUBMERGENCE
WOS Research AreaAgriculture ; Plant Sciences
WOS IDWOS:001096145600004
Citation statistics
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/33235
Collection中国科学院海岸带环境过程与生态修复重点实验室
中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
支撑部门_中国科学院黄河三角洲滨海湿地试验站
Corresponding AuthorHan, Guangxuan
Affiliation1.Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
2.Chinese Acad Sci, Yellow River Delta Field Observat & Res Stn Coasta, Dongying 257500, Shandong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Liaocheng Univ, Sch Geog & Environm, Liaocheng 252000, Peoples R China
Recommended Citation
GB/T 7714
Wang, Lianjing,Zhao, Mingliang,Wei, Siyu,et al. Inundation depth controls leaf photosynthetic capacity by regulating leaf area and N content in an estuarine wetland[J]. PLANT AND SOIL,2023:16.
APA Wang, Lianjing.,Zhao, Mingliang.,Wei, Siyu.,Song, Weimin.,Chu, Xiaojing.,...&Han, Guangxuan.(2023).Inundation depth controls leaf photosynthetic capacity by regulating leaf area and N content in an estuarine wetland.PLANT AND SOIL,16.
MLA Wang, Lianjing,et al."Inundation depth controls leaf photosynthetic capacity by regulating leaf area and N content in an estuarine wetland".PLANT AND SOIL (2023):16.
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