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The relationships of present vegetation, bacteria, and soil properties with soil organic matter characteristics in moist acidic tundra in Alaska

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dc.contributor.authorNam, Sungjin-
dc.contributor.authorAlday, Josu G.-
dc.contributor.authorKim, Mincheol-
dc.contributor.authorKim, Hyemin-
dc.contributor.authorKim, Yongkang-
dc.contributor.authorPark, Taesung-
dc.contributor.authorLim, Hyoun Soo-
dc.contributor.authorLee, Bang Yong-
dc.contributor.authorLee, Yoo Kyung-
dc.contributor.authorJung, Ji Young-
dc.date.accessioned2021-04-29T07:27:18Z-
dc.date.available2021-04-29T07:27:18Z-
dc.date.issued2021-06-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/11781-
dc.description.abstractSoil organic matter (SOM) is related to vegetation, soil bacteria, and soil properties; however, not many studies link all these parameters simultaneously, particularly in tundra ecosystems vulnerable to climate change. Our aim was to describe the relationships between vegetation, bacteria, soil properties, and SOM composition in moist acidic tundra by integrating physical, chemical, and molecular methods. A total of 70 soil samples were collected at two different depths from 36 spots systematically arranged over an area of about 300 m × 50 m. Pyrolysis- gas chromatography/mass spectrometry and pyrosequencing of the 16S rRNA gene were used to identify the molecular compositions of the SOM and bacterial community, respectively. Vegetation and soil physicochemical properties were also measured. The sampling sites were grouped into three, based on their SOM compositions: Sphagnum moss derived SOM, lipid-rich materials, and aromatic-rich materials. Our results show that SOM composition is spatially structured and linked to microtopography; however, the vegetation, soil properties, and bacterial community composition did not show overall spatial structuring. Simultaneously, soil properties and bacterial composition were the main factors explaining SOM compositional variation, while vegetation had a residual effect. Verrucomicrobia and Acidobacteria were related to polysaccharides, and Chloroflexi was linked to aromatic compounds. These relationships were consistent across different hierarchical levels. Our results suggest that SOM composition at a local scale is closely linked with soil factors and the bacterial community. Comprehensive observation of ecosystem components is recommended to understand the in-situ function of bacteria and the fate of SOM in the moist acidic tundra.en_US
dc.languageEnglishen_US
dc.language.isoen_USen_US
dc.subjectEnvironmental Sciences & Ecologyen_US
dc.subject.classification기타(알래스카 카운실 거점)en_US
dc.titleThe relationships of present vegetation, bacteria, and soil properties with soil organic matter characteristics in moist acidic tundra in Alaskaen_US
dc.title.alternative알래스카 습윤 툰드라지역에서 토양 유기물 특성과 식생, 박테리아, 토양 특성 간 상관관계en_US
dc.typeArticleen_US
dc.identifier.bibliographicCitationNam, Sungjin, et al. 2021. "The relationships of present vegetation, bacteria, and soil properties with soil organic matter characteristics in moist acidic tundra in Alaska". <em>SCIENCE OF THE TOTAL ENVIRONMENT</em>, 772(1): 145386-145386.en_US
dc.citation.titleSCIENCE OF THE TOTAL ENVIRONMENTen_US
dc.citation.volume772en_US
dc.citation.number1en_US
dc.identifier.doi10.1016/j.scitotenv.2021.145386-
dc.citation.startPage145386en_US
dc.citation.endPage145386en_US
dc.description.articleClassificationSCIE-
dc.description.jcrRateJCR 2019:8.302en_US
dc.subject.keywordSoil organic matter (SOM)en_US
dc.subject.keywordSphagnum mossen_US
dc.subject.keywordSoil propertiesen_US
dc.subject.keywordMicrobiomeen_US
dc.subject.keywordMoist acidic tundraen_US
dc.subject.keywordPyrolysis GC/MSen_US
dc.identifier.localId2021-0014-
dc.identifier.scopusid2-s2.0-85100728494-
dc.identifier.wosid000628753700080-
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2020-2020, Arctic permafrost environment change monitoring and prediction method developments (20-20) / Lee, Bang Yong (PN20081)
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