• 제목/요약/키워드: 구상나무(Abies koreana)

검색결과 145건 처리시간 0.028초

Effects of Shading Treatments on Growth of Abies koreana Seedlings in High-Temperature and High Light Environments (차광막 처리가 고온 및 고광도 환경에서 구상나무(Abies koreana) 묘목의 생육에 미치는 영향 )

  • Jae-Hyun Park;Hyo-In Lim;Han-Na Seo;Yong-Han Yoon
    • Journal of Environmental Science International
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    • 제32권11호
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    • pp.811-820
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    • 2023
  • This study investigated the protective effects of shade nets on Abies koreana seedlings subjected to high temperature and luminosity stress, which are pertinent for plant survival in climate change scenarios. This study, conducted at Konkuk University, compared the growth, survival, and soil conditions of 3-year-old specimens across natural, greenhouse, and shaded settingsfrom July to September 2022. Our findings demonstrated that shade nets significantly enhanced seedling survival by moderating soil temperature and moisture. This is particularly evident in high-temperature conditions, where shade nets mitigate stress on seedlings and safeguard them from excessive sunlight exposure. Proper net installation height and location are crucial for optimal temperature and humidity control, suggesting broader applicability for various species and offering strategies to combat the ecological impacts of climate change.

Changes for Stand Structure of Abies koreana Forest at the Yeongsil Area of Mt. Hallasan for Six Years (from 2011 to 2017) (한라산 영실 지역 구상나무림의 6년간(2011년과 2017년)의 임분구조 변화)

  • Song, Ju Hyeon;Han, Sang Hak;Han, Sang Hak;Yun, Chung Weon
    • Journal of Korean Society of Forest Science
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    • 제108권1호
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    • pp.1-9
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    • 2019
  • This study was carried out to compare stand structure and dynamics in Abies koreana forest in Yeongsil area of Mt. Hallasan between 2011 and 2017 by analysing DBH distribution, tree vitality, importance value (IV) and species diversity through the national long-term ecological research project conducted by National Institute of Environmental Research. As a result of DBH distribution, A. koreana decreased in all DBH class except 20-25 cm and the number of individual decreased by 16.3 percent from 780 to 655. As a result of tree vitality of A. koreana, the number of standing alive (AS) decreased by 16.2 percent from 652 to 546, while that of standing dead (DS) increased by 15.8 percent from 106 to 126 and that of fallen dead (DF) increased by 193.7 percent from 16 to 47, respectively. Importance value of A. koreana decreased by 2.4 percent point from 45.9 % to 43.5 %. Species diversity increased by 0.006 from 0.513 to 0.519. The weakening of the A. koreana in the Yeongsil area of Mt. Hallasan could be considerably supported by many aspects such as DBH distribution, tree vitality and importance value. Therefore, Long-term ecological monitoring and continuously research in that area should be conducted to clarify the effects of ecosystem changes.

Comparison of Growth Condition of Abies koreana Wilson by Districts (지역별 구상나무 생육현황 비교)

  • 추갑철
    • Korean Journal of Environment and Ecology
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    • 제14권1호
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    • pp.80-87
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    • 2000
  • 구상나무림 보전관리의 기초자료를 마련하고자 지리산 한라산 및 덕유산의 아고산지대에 95개의 조사구를 설치하여 한국특산종 구상나무의 생육현황과 구상나무 서식지의 입지인지를 조사하였다 구상나무는 흉고직경 10-30cm의 범위에 드는 나무들이 주로 고사목으로 나타났으며 고사목의 비율은 전체적으로 총개체수의 11.51%였다 고사목의 비율또한 덕유산에서 18.18%로 가장높게나타났고 한라산 지역이 8.11%로 가장 낮게 나타났다 조사구당 구상나무 개체수 치수의 개체수 구상나무의 수고와 흉고직경 생육현황표에 의한 점수 구상나무의 상대밀도 등은 지역간에 통계적 유의차가 인정되었다 생육중인 구상나무의 활력은 한라산 지리산, 덕유산으로 순으로 좋았다 조사구당 구상나무 치수의 개체수는 한라산에서 6.00개체로 가장 많았으며 덕유산에서는 치수가 없는 것으로 나타났다 구상나무의 상대밀도도 한라산, 지리산, 덕유산 순으로 높게 나타났다. 조사구당 구상나무 개체수는 해발고와 정의 상관, 방위, 낙엽퇴의 두께, 조사구당 교목의 개체수 및 종수, 활엽수 상대밀도와는 부의 상관이 인정되었다. 구상나무 상대밀도는 해발고와는 고도의 정의 상관관계 방위 조사 구당교목의 개체수 및 종수 수관울폐도, 활엽수 상대밀도와는 부의 상관관계가 인정되었다 지리산, 한라산 및 덕유산에 자생하는 구상나무는 해발고가 높으며 볕이 잘들고 낙엽퇴가 얕으며 종구성이 단순하고 활엽수가 적은 지역에 보다 많이 분포한다.

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Plant Communisty Structure in Keolim valley of Chirisan National Park (지리산국립공원 거림계곡 식물군집구조)

  • 권전오
    • Korean Journal of Environment and Ecology
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    • 제13권4호
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    • pp.392-403
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    • 2000
  • 지리산국립공원 거림계곡 식물군집구조를 파악하기 위하여 거림계곡 내 등산로를 따라 66개(6,600m2)의 방형구를 설정하였으며 DCA 기법을 이용하여 분석한 결과 해발고 740-950m 의 조사구는 졸참나무군집(군집I) 해발 950-1,340m의 조사구는 신갈나무군집(군집II) 해발 1,340-1,390m의 조사구는 구상나무-거제수나무군집(군집III)으로 분류되었다 상대우점치 흉고직경급별 분포 분석결과 각 군집의 우점종인 졸참나무 신갈나무 구상나무가 우점하는 군집으로 계속유지될것으로 판단되었으며 특히 관목층은 조랫대의 밀도가 높아 천이진행에 영향을 주는 동시에 종다양도가 낮은 것으로 판단되었다 한편 3개 군집간의 유사도지수는 낮은 상태로 해발고에 따라 식생구분이 명확하였다

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The Correlation Analysis between Occurrence of Seedlings of Korean fir (Abies koreana E.H. Wilson) and Understory on the Eastern Slope of Mt. Halla (한라산국립공원 동사면의 구상나무숲 내 주요 하층식물이 구상나무 유묘 발생에 미치는 상관성 분석)

  • Lee, Jong-Won;Lee, Su-Hong;Im, WonTaek;Kang, Shin-Ho
    • Korean Journal of Plant Resources
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    • 제34권5호
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    • pp.491-501
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    • 2021
  • This study was carried out to investigate the occurrence of seedlings of Korean fir (Abies koreana) in Korean fir forest located on the eastern slope of Mt. Halla National Park. Between June and August in 2016, the systematic sampling method was applied to 125 plots of 5 m × 5 m quadrats and field survey was came out to measure the characteristics of sites and understory vegetation. Correlation analysis was applied to the variables quantified from the data collected. Total number of flora found at the study site is 31 in families, 44 in genera, and 56 in species. The main lower layer vegetation was investigated such as Jeju dwarf bamboo, Toothed club moss (Lycopodium serratum), Pacific fir moss (Lycopodium chinense), Climbing hydrangea (Hydrangea petiolaris) etc. Among these plant species, the vegetation which had a high positive correlation with the frequency and the coverage of seedlings of Korean fir were Jeju dwarf bamboo, Toothed club moss and Pacific fir moss.

Review on Abies koreana Community in Mt. Halla National Park, Korea (漢拏山 國立公圓 구상나무群集의 再檢討)

  • Yim, Yang-Jai;Kim, Jeong-Un
    • The Korean Journal of Ecology
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    • 제13권3호
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    • pp.247-249
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    • 1990
  • The character species of Abies koreana community in Mt. Halla national park, Korea, and it s nomenclature was reviewed. According to the code of phytosociological nomenclature (Barkman et al., 1986), the association name was corrected from Saso-Abietetum koreanae Yim et al. 1990 nov. in the Korean J. Ecol. 13(2): 101-130 (1990) to Saso quelpaertensi-Abietetum koreanae (Song et Nakanishi) corr. Yim et Kim 1990.

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Investigation of Variation in Bacterial Community Structure in Endangered Korean Fir Tree by Habitats (멸종위기종 구상나무 서식지별 세균 군집 구조 변이 조사)

  • Young Min Ko;Geun-Hye Gang;Dae Ho Jung;Youn-Sig Kwak
    • Research in Plant Disease
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    • 제30권2호
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    • pp.165-175
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    • 2024
  • The Korean fir tree (Abies koreana), an endemic species of South Korea, is experiencing a severe decline in population due to climate change. Studies on the conservation of Korean fir have been extensive, yet research regarding its correlation with rhizosphere bacterial communities remains scarce, warranting further investigation. In this study, metagenome amplicon sequencing targeting the 16S rRNA V4 region was conducted to examine the presence of specific bacterial communities in Korean fir and to investigate potential differences based on habitat types (rhizosphere of native or cultivated trees, soil of dead trees, and bulk soil) and seasonal variations (April, June, September, November). Here we show that although we could not identify specific taxa highly specifically with Korean fir, the rhizosphere bacterial community in native trees exhibited less variability in response to seasonal changes compared to that in bulk soils. Suggesting the establishment of relatively stable bacterial populations around the Korean fir natural habitat. Further research on other types of rhizosphere and/or microbes is necessary to investigate the distinct relationship of Korean fir with microbial communities.

Trend Analysis of Vegetation Changes of Korean Fir (Abies koreana Wilson) in Hallasan and Jirisan Using MODIS Imagery (MODIS 시계열 위성영상을 이용한 한라산과 지리산 구상나무 식생 변동 추세 분석)

  • Minki Choo;Cheolhee Yoo;Jungho Im;Dongjin Cho;Yoojin Kang;Hyunkyung Oh;Jongsung Lee
    • Korean Journal of Remote Sensing
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    • 제39권3호
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    • pp.325-338
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    • 2023
  • Korean fir (Abies koreana Wilson) is one of the most important environmental indicator tree 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 surveys of 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 sensing data. Specifically, normalized difference vegetation index (NDVI) from Moderate Resolution Imaging Spectroradiometer (MODIS), land surface temperature (LST), and precipitation data from Global Precipitation Measurement (GPM) Integrated Multi-satellitE Retrievalsfor GPM from September 2003 to 2020 for Hallasan and Jirisan were used to analyze vegetation changes and their association with environmental 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 a decrease in NDVI at the high mortality areas (Hallasan: -0.46, Jirisan: -0.43). Furthermore, when analyzing the long-term fluctuations of Korean fir vegetation through the Hodrick-Prescott filter-applied NDVI, LST, and precipitation, the NDVI difference between the Korean fir healthy vegetation and high mortality sitesincreased with the increasing LST and decreasing precipitation in Hallasan. Thissuggests that the increase in LST and the decrease in precipitation contribute to the decline of Korean fir in Hallasan. In contrast, Jirisan confirmed a long-term trend of declining NDVI in the areas of Korean fir mortality but did not find a significant correlation between the changes in NDVI and environmental variables (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 studies should be conducted. This study demonstrated the feasibility of using satellite data for long-term monitoring of Korean fir ecosystems and investigating their changes in conjunction with environmental conditions. Thisstudy provided the potential forsatellite-based monitoring to improve our understanding of the ecology of Korean fir.