Quality of Sediment Organic Matter Determines the Intertidal N2O Response to Global Warming

doi:10.1029/2021JG006572

	Quality of Sediment Organic Matter Determines the Intertidal N2O Response to Global Warming
	Chen, Shu 1; Wang, Dongqi 1,2; Yu, Zhongjie 3; Nie, Jiaqin 1; Chen, Jie 2; Li, Yangjie 4; Zhang, Xiaoli5 ; Chen, Zhenlou 1
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
ISSN	2169-8953
	2022-02-01
卷号	127 期号:2 页码:17
关键词	intertidal sediment nitrous oxide organic matter warming climate change
DOI	10.1029/2021JG006572
通讯作者	Wang, Dongqi(dqwang@geo.ecnu.edu.cn)
英文摘要	Estuaries and coasts are areas of intense biogeochemical cycling and are sensitive to global climate change. However, the effect of temperature increase on the emissions of the powerful greenhouse gas nitrous oxide (N2O) in different estuarine and coastal areas is still uncertain. In this study, we used laboratory incubation experiments to investigate increasing temperatures (12, 25, and 35 degrees C) and tidal effects on N2O fluxes in intertidal sediments from the East China coast (ECC). Overall, the ECC acts as a net source of atmospheric N2O and exhibited considerable spatial variability over three orders of magnitude (from -0.17 to 8.4 mu mol m(-2) h(-1)). The warming promoted N2O emissions in most intertidal areas, while reducing N2O emissions at some sampling sites. In addition, the overall effect of flooding on N2O emissions changed from a positive to a negative effect with increasing temperature. By combining the sediment properties of all the sampling sites, we found that large differences in N2O emissions at the same amended floodwater nitrogen concentration were due to the quality and quantity of sediment organic matter. Sediment derived mainly from marine sources emitted more N2O than sediment derived from terrestrial sources. This suggests that the mangroves, salt marshes, and intertidal zones of estuaries have a mitigating effect on N2O emissions due to their elevated terrestrial organic matter inputs. This research improves our understanding of the impact of future global climatic changes on intertidal N2O fluxes, which can inform future studies and models and can be used to constrain intertidal N2O emissions.
资助机构	National Natural Science Foundation of China ; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration ; Fundamental Research Funds for the Central Universities
收录类别	SCI
语种	英语
关键词[WOS]	NITROUS-OXIDE PRODUCTION ; AMMONIA-OXIDIZING ARCHAEA ; SUBTROPICAL FRESH-WATER ; DENITRIFICATION RATES ; SALINITY GRADIENT ; METHANE EMISSIONS ; RIVER ESTUARY ; SALT-MARSH ; FLUXES ; MANGROVE
研究领域[WOS]	Environmental Sciences & Ecology ; Geology
WOS记录号	WOS:000763471300007
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/31406
专题	海岸带生物学与生物资源利用重点实验室海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室海岸带生物学与生物资源利用重点实验室_海岸带生物资源高效利用研究与发展中心
通讯作者	Wang, Dongqi
作者单位	1.East China Normal Univ, Sch Geog Sci, Minist Educ, Key Lab Geog Informat Sci, Shanghai, Peoples R China 2.Shanghai Key Lab Urban Ecol Proc & Ecorestorat, Shanghai, Peoples R China 3.Univ Illinois, Dept Nat Resources & Environm Sci, Champaign, IL USA 4.Second Inst Oceanog, Key Lab Marine Ecosyst & Biogeochem, State Ocean Adm, Hangzhou, Peoples R China 5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China
推荐引用方式 GB/T 7714	Chen, Shu,Wang, Dongqi,Yu, Zhongjie,et al. Quality of Sediment Organic Matter Determines the Intertidal N2O Response to Global Warming[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2022,127(2):17.
APA	Chen, Shu.,Wang, Dongqi.,Yu, Zhongjie.,Nie, Jiaqin.,Chen, Jie.,...&Chen, Zhenlou.(2022).Quality of Sediment Organic Matter Determines the Intertidal N2O Response to Global Warming.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,127(2),17.
MLA	Chen, Shu,et al."Quality of Sediment Organic Matter Determines the Intertidal N2O Response to Global Warming".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 127.2(2022):17.