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  1. No Access

    Article

    Microbial metabolic responses and CO2 emissions differentiated by soil water content variation in subarctic tundra soils

    Recent rapid air temperature increases across the northern-latitude tundra have prolonged permafrost thawing and snow melting periods, resulting in increased soil temperature (Ts) and volumetric soil water conten...

    Dockyu Kim, Namyi Chae, Mincheol Kim, Sung** Nam… in Journal of Microbiology (2022)

  2. No Access

    Article

    Time-lapse electrical resistivity tomography and ground penetrating radar map** of the active layer of permafrost across a snow fence in Cambridge Bay, Nunavut Territory, Canada: correlation interpretation using vegetation and meteorological data

    The active layer thickness (ALT) is a key parameter for permafrost studies. Changes in the ALT are affected mainly by air and ground temperatures, physical and thermal properties of the surface and subsurface ...

    Kwansoo Kim, Joohan Lee, Hyeontae Ju, Ji Young Jung, Namyi Chae… in Geosciences Journal (2021)

  3. No Access

    Article

    Soil water content as a critical factor for stable bacterial community structure and degradative activity in maritime Antarctic soil

    Recent increases in air temperature across the Antarctic Peninsula may prolong the thawing period and directly affect the soil temperature (Ts) and volumetric soil water content (SWC) in maritime tundra. Under an...

    Dockyu Kim, Namyi Chae, Mincheol Kim, Sung** Nam, Eungbin Kim… in Journal of Microbiology (2020)

  4. No Access

    Article

    Temporal Changes in Soil Bacterial Diversity and Humic Substances Degradation in Subarctic Tundra Soil

    Humic substances (HS), primarily humic acids (HA) and fulvic acids (FA), are the largest constituent of soil organic matter. In microcosm systems with subarctic HS-rich tundra soil (site AK 1-75; approximately...

    Ha Ju Park, Namyi Chae, Woo Jun Sul, Bang Yong Lee, Yoo Kyung Lee… in Microbial Ecology (2015)

  5. No Access

    Article

    Isolation of facultatively anaerobic soil bacteria from Ny-Ålesund, Svalbard

    Anaerobic conditions in soil commonly occur even in upland environments. Physiological and biogeochemical properties of individual anaerobic bacteria, however, have been poorly understood due to difficulties i...

    Hye Min Kim, Namyi Chae, Ji Young Jung, Yoo Kyung Lee in Polar Biology (2013)

  6. No Access

    Article

    Organic Layer Serves as a Hotspot of Microbial Activity and Abundance in Arctic Tundra Soils

    Tundra ecosystem is of importance for its high accumulation of organic carbon and vulnerability to future climate change. Microorganisms play a key role in carbon dynamics of the tundra ecosystem by mineralizi...

    Seung-Hoon Lee, Inyoung Jang, Namyi Chae, Tae** Choi, Hojeong Kang in Microbial Ecology (2013)

  7. No Access

    Article

    Bacterial diversity in ornithogenic soils compared to mineral soils on King George Island, Antarctica

    In the Narębski Point area of King George Island of Antarctica, ornithogenic soils form on land under Chinstrap and Gentoo Penguin rookeries. The purpose of this study was to compare the bacterial community co...

    Ok-Sun Kim, Namyi Chae, Hyun Soo Lim, Ahnna Cho, Jeong Hoon Kim… in Journal of Microbiology (2012)

  8. No Access

    Article

    Annual Variation of Soil Respiration and Precipitation in a Temperate Forest (Quercus serrata and Carpinus laxiflora) Under East Asian Monsoon Climate

    The consequence of changing pattern of precipitation on soil CO2 emission is poorly understood in montane forest ecosystems under monsoon climate in Asia. In this paper, the results of 3-year field measurements a...

    Namyi Chae in Journal of Plant Biology (2011)