Inundation depth controls leaf photosynthetic capacity by regulating leaf area and N content in an estuarine wetland

doi:10.1007/s11104-023-06368-x

	Inundation depth controls leaf photosynthetic capacity by regulating leaf area and N content in an estuarine wetland
	Wang, Lianjing 1,2,3; Zhao, Mingliang 1,2; Wei, Siyu 1,2,3; Song, Weimin 1,2; Chu, Xiaojing 1,2; Li, Peiguang 1,2; Wang, Xiaojie 1,2; Zhang, Xiaoshuai 1,2; Cao, Qixue 4; Han, Guangxuan1,2,3
发表期刊	PLANT AND SOIL
ISSN	0032-079X
	2023-10-31
页码	16
关键词	Estuarine wetland Inundation depth Leaf area Leaf N content Photosynthetic capacity
DOI	10.1007/s11104-023-06368-x
通讯作者	Han, Guangxuan(gxhan@yic.ac.cn)
英文摘要	Background 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.
资助机构	This 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
收录类别	SCI
语种	英语
关键词[WOS]	TERRESTRIAL ECOSYSTEMS ; CNP STOICHIOMETRY ; COASTAL WETLANDS ; LOESS PLATEAU ; WATER DEPTH ; NITROGEN ; PHOSPHORUS ; CARBON ; PRODUCTIVITY ; SUBMERGENCE
研究领域[WOS]	Agriculture ; Plant Sciences
WOS记录号	WOS:001096145600004
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/33235
专题	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
通讯作者	Han, Guangxuan
作者单位	1.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
推荐引用方式 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.