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Attenuation of Methane Oxidation by Nitrogen Availability in Arctic Tundra Soils

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dc.contributor.author이재헌-
dc.contributor.author윤정은-
dc.contributor.author양이랑-
dc.contributor.authorJung, Ji Young-
dc.contributor.authorLee, Yoo Kyung-
dc.contributor.authorJunji Yuan-
dc.contributor.authorWeixin Ding-
dc.contributor.authorChris Freeman-
dc.contributor.author강호정-
dc.date.accessioned2023-04-14T16:37:17Z-
dc.date.available2023-04-14T16:37:17Z-
dc.date.issued2023-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/14401-
dc.description.abstractCH4 emission in the Arctic has large uncertainty due to the lack of mechanistic understanding of the processes. CH4 oxidation in Arctic soil plays a critical role in the process, whereby removal of up to 90% of CH4 produced in soils by methanotrophs can occur before it reaches the atmosphere. Previous studies have reported on the importance of rising temperatures in CH4 oxidation, but because the Arctic is typically an N-limited system, fewer studies on the effects of inorganic nitrogen (N) have been reported. However, climate change and an increase of available N caused by anthropogenic activities have recently been reported, which may cause a drastic change in CH4 oxidation in Arctic soils. In this study, we demonstrate that excessive levels of available N in soil cause an increase in net CH4 emissions via the reduction of CH4 oxidation in surface soil in the Arctic tundra. In vitro experiments suggested that N in the form of NO3? is responsible for the decrease in CH4 oxidation via influencing soil bacterial and methanotrophic communities. The findings of our meta-analysis suggest that CH4 oxidation in the boreal biome is more susceptible to the addition of N than in other biomes. We provide evidence that CH4 emissions in Arctic tundra can be enhanced by an increase of available N, with profound implications for modeling CH4 dynamics in Arctic regions.-
dc.languageEnglish-
dc.subject.classification기타()-
dc.titleAttenuation of Methane Oxidation by Nitrogen Availability in Arctic Tundra Soils-
dc.title.alternative북극 툰드라 토양에서 질소 이용도에 의해 메탄 산화 감소-
dc.typeArticle-
dc.identifier.bibliographicCitation이재헌, et al. 2023. "Attenuation of Methane Oxidation by Nitrogen Availability in Arctic Tundra Soils". <em>ENVIRONMENTAL SCIENCE & TECHNOLOGY</em>, 57(6): 2647-2659.-
dc.citation.titleENVIRONMENTAL SCIENCE & TECHNOLOGY-
dc.citation.volume57-
dc.citation.number6-
dc.identifier.doi10.1021/acs.est.2c05228-
dc.citation.startPage2647-
dc.citation.endPage2659-
dc.description.articleClassificationSCIE-
dc.description.jcrRateJCR 2021:7.885-
dc.subject.keywordArctic region-
dc.subject.keywordavailable N-
dc.subject.keywordbacterial diversity-
dc.subject.keywordmethane oxidation-
dc.subject.keywordmethanotrophs-
dc.subject.keywordmoist acidic tundra-
dc.identifier.localId2023-0024-
Appears in Collections  
2022-2022, Changes in biogeochemical processes of Arctic terrestrial ecosystem in response to climate change (22-22) / Jung, Ji Young (PN22012)
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