RISS 검색 - 국내학술지논문 상세보기

다국어 초록 (Multilingual Abstract)

Korean fir (Abies koreana Wilson) is one of the most important environmental indicatortree species for assessing climate change impacts on coniferous forests in the Korean Peninsula.
However, due to the nature of alpine and subalpine regions, it is difficult to conduct regular field surveysof Korean fir, which is mainly distributed in regions with altitudes greater than 1,000 m. Therefore,this study analyzed the vegetation change trend of Korean fir using regularly observed remote sensingdata. Specifically, normalized difference vegetation index (NDVI) from Moderate Resolution ImagingSpectroradiometer (MODIS), land surface temperature (LST), and precipitation data from GlobalPrecipitation Measurement (GPM) Integrated Multi-satellitE Retrievalsfor GPM from September 2003to 2020 for Hallasan and Jirisan were used to analyze vegetation changes and their association withenvironmental variables. We identified a decrease in NDVI in 2020 compared to 2003 for both sites.
Based on the NDVI difference maps, areas for healthy vegetation and high mortality of Korean fir were selected. Long-term NDVI time-series analysis demonstrated that both Hallasan and Jirisan had adecrease in NDVI at the high mortality areas (Hallasan: –0.46, Jirisan: –0.43). Furthermore, whenanalyzing the long-term fluctuations of Korean fir vegetation through the Hodrick-Prescott filter-appliedNDVI, LST, and precipitation, the NDVI difference between the Korean fir healthy vegetation and highmortality sitesincreased with the increasing LST and decreasing precipitation in Hallasan. Thissuggeststhat the increase in LST and the decrease in precipitation contribute to the decline of Korean fir inHallasan. In contrast, Jirisan confirmed a long-term trend of declining NDVI in the areas of Korean firmortality but did not find a significant correlation between the changes in NDVI and environmentalvariables (LST and precipitation). Further analyses of environmental factors, such as soil moisture,insolation, and wind that have been identified to be related to Korean fir habitats in previous studiesshould be conducted. This study demonstrated the feasibility of using satellite data for long-termmonitoring of Korean fir ecosystems and investigating their changes in conjunction with environmentalconditions. Thisstudy provided the potential forsatellite-based monitoring to improve our understandingof the ecology of Korean fir.

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참고문헌 (Reference)

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6 최정일, "동아시아 주식시장의 상관관계와 변동성 분석 - 한국⋅일본⋅중국⋅홍콩⋅대만을 중심으로" 한국콘텐츠학회 17 (17): 165-173, 2017

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