YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室
Nitrogen input weakens the control of inundation frequency on soil organic carbon loss in a tidal salt marsh
Li, Juanyong1,2,3,4; Han, Guangxuan1,2; Zhao, Mingliang1,2,5; Qu, Wendi1,2,3; Nie, Ming6; Song, Weimin1,2; Xie, Baohua1,2; Eller, Franziska7
Source PublicationESTUARINE COASTAL AND SHELF SCIENCE
ISSN0272-7714
2020-09-30
Volume243Pages:10
KeywordTidal salt marsh Nitrogen input Inundation frequency Soil CO2 and CH4 emissions Soil DOC loss
DOI10.1016/j.ecss.2020.106878
Corresponding AuthorHan, Guangxuan(gxhan@yic.ac.cn)
AbstractThe soil carbon (C) sequestration capacity of salt marshes is of considerable importance with respect to the mitigatiing the potentially detrimental consequences of global climate change. Given that tidal salt marshes are subjected to periodic cycles of inundation, it is assumed that soil C cycle in these marshes is expected to be controlled to varing extent by changes in soil moisture and salinity induced by the alternating patterns of drying and rewetting. In addition, with increases in the extent and severity of nitrogen (N) eutrophication becomes serious, we predicted that soil organic carbon (SOC) loss in tidal salt marshes is likely to be highly responsive to increased N loading. In this study, we conducted a two-factor mesocosm experiment (simulated inundation and N input in a tidal salt marsh) to determine the interactive effects of N eutrophication and inundation frequency on CO2 and CH4 emissions and dissolved organic carbon (DOC) contents. Our results showed that increased inundation frequency led to lower levels of CO2 emission but greater CH4 emission, whereas N input weakened the effects of changes in inundation frequency on CO2 and CH4 emissions. Moreover, N input was found to modify CO2 and CH4 emission in response to variations in soil moisture. We also observed an enhancement of soil DOC loss in response to increasing inundation frequency, and that DOC loss in the surface soil was considerably greater than that in subsurface soil. Further, as inundation frequency increased, we detected changes in the relationship between soil DOC and CO2 and CH4. Our findings highlighted that vertical variation in soil moisture induced by inundation is a key factor controlling SOC loss in tidal salt marshes, although N input can weaken this control.
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences ; National Nature Science Foundation of China ; Yellow River Delta Ecological Research Station of Coastal Wetland, CAS
Indexed BySCI
Language英语
WOS KeywordSPARTINA-ALTERNIFLORA INVASION ; YELLOW-RIVER DELTA ; HETEROTROPHIC RESPIRATION ; COASTAL EUTROPHICATION ; USE EFFICIENCY ; WETLAND SOILS ; COMPONENTS ; MINERALIZATION ; FERTILIZATION ; SEQUESTRATION
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS IDWOS:000571215200008
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Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/28469
Collection中科院海岸带环境过程与生态修复重点实验室
中科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
Corresponding AuthorHan, Guangxuan
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
2.YICCAS, Shandong Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
5.Southwest Univ, Coll Resources & Environm, Key Lab Ecoenvironm Three Gorges Reservoir Reg, Minist Educ, Chongqing 400715, Peoples R China
6.Fudan Univ, Minist Educ, Key Lab Biodivers Sci & Ecol Engn, 2005 Songhu Rd, Shanghai 200438, Peoples R China
7.Aarhus Univ, Dept Biosci, Ole Worms Alle 1, DK-8000 Aarhus C, Denmark
Recommended Citation
GB/T 7714
Li, Juanyong,Han, Guangxuan,Zhao, Mingliang,et al. Nitrogen input weakens the control of inundation frequency on soil organic carbon loss in a tidal salt marsh[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2020,243:10.
APA Li, Juanyong.,Han, Guangxuan.,Zhao, Mingliang.,Qu, Wendi.,Nie, Ming.,...&Eller, Franziska.(2020).Nitrogen input weakens the control of inundation frequency on soil organic carbon loss in a tidal salt marsh.ESTUARINE COASTAL AND SHELF SCIENCE,243,10.
MLA Li, Juanyong,et al."Nitrogen input weakens the control of inundation frequency on soil organic carbon loss in a tidal salt marsh".ESTUARINE COASTAL AND SHELF SCIENCE 243(2020):10.
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