The effects of climate warming and exogenous nitrogen input on soil N2O emissions from mangroves

doi:10.1016/j.soilbio.2024.109607

	The effects of climate warming and exogenous nitrogen input on soil N2O emissions from mangroves
	Song, Weimin 1,2; Zhao, Yan 2; Zhou, Jian 2; Feng, Jianxiang 3; Wang, Zhonglei 3; Han, Guangxuan1 ; Pendall, Elise 4; Lin, Guanghui 2,3
发表期刊	SOIL BIOLOGY & BIOCHEMISTRY
ISSN	0038-0717
	2024-12-01
卷号	199 页码:13
关键词	Global warming Eutrophication Coastal wetland Greenhouse gases N2O Mangrove species
DOI	10.1016/j.soilbio.2024.109607
通讯作者	Song, Weimin([email protected]) ; Lin, Guanghui([email protected])
英文摘要	The paucity of studies on nitrous oxide (N2O) dynamics with rising temperatures and nitrogen (N)-based eutrophication makes it challenging to evaluate the role of mangroves in mitigating climate change. Here, a 3year mesocosm experiment was conducted to investigate the effects of climate warming (+3 degrees C) and excessive N input (25 mg N L- 1) on soil N2O emissions from two mangroves (Avicennia marina and Bruguiera gymnorrhiza). We found that warming and N input alone significantly increased soil N2O emissions from both mangroves, while the interactive effects of warming and N input on soil N2O emissions were affected by mangrove species. Warming mitigated the positive effect of N input on soil N2O emissions from A. marina; and amplified the effect of N input on soil N2O emissions from B. gymnorrhiza, suggesting that the response of soil N2O emissions to these global change factors is species-dependent. Stable isotopic signature analysis revealed that both warming and N input significantly increased the relative contribution of nitrification to N2O emissions from A. marina; whereas N input, rather than warming, significantly changed the relative contribution of nitrification in B. gymnorrhiza. This could be attributed to the differential changes in soil environmental conditions, plant growth and the microbial structure of the two mangroves. Overall, this study highlights the role of mangrove species in modifying the effects of warming and N input on soil N2O emissions, which should be considered when accurately projecting N2O emissions from mangroves. Furthermore, considering the low N2O emissions from background sediments and the common N limitation across mangroves, our findings suggest that climate warming and exogenous N input may lead to a surge of N2O emissions from mangroves, especially those that are seriously affected by human activities.
资助机构	National key basic research program of China ; Public science and technology research funds projects of ocean ; National Natural Science Foundation of China ; National Key Basic Research and Development Program
收录类别	SCI
语种	英语
关键词[WOS]	SEA-LEVEL RISE ; OXIDE PRODUCTION ; NUTRIENT ENRICHMENT ; METHANE EMISSIONS ; DENITRIFICATION ; WETLAND ; GROWTH ; RHIZOSPHERE ; SEDIMENTS ; FLUX
研究领域[WOS]	Agriculture
WOS记录号	WOS:001333438700001
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/37151
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	Song, Weimin; Lin, Guanghui
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yellow River Delta Ecol Res Stn Coastal Wetland, Yantai 264003, Peoples R China 2.Tsinghua Univ, Dept Earth Syst Sci, Key Lab Earth Syst Modeling, Minist Educ, Beijing 100084, Peoples R China 3.Tsinghua Int Grad Sch Shenzhen, Lab Stable Isotope & Gulf Ecol, Shenzhen 518000, Peoples R China 4.Western Sydney Univ, Hawkesbury Inst Environm, Penrith, NSW 2751, Australia
推荐引用方式 GB/T 7714	Song, Weimin,Zhao, Yan,Zhou, Jian,et al. The effects of climate warming and exogenous nitrogen input on soil N2O emissions from mangroves[J]. SOIL BIOLOGY & BIOCHEMISTRY,2024,199:13.
APA	Song, Weimin.,Zhao, Yan.,Zhou, Jian.,Feng, Jianxiang.,Wang, Zhonglei.,...&Lin, Guanghui.(2024).The effects of climate warming and exogenous nitrogen input on soil N2O emissions from mangroves.SOIL BIOLOGY & BIOCHEMISTRY,199,13.
MLA	Song, Weimin,et al."The effects of climate warming and exogenous nitrogen input on soil N2O emissions from mangroves".SOIL BIOLOGY & BIOCHEMISTRY 199(2024):13.