• Title/Summary/Keyword: 점봉산

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Pollen analysis of alpine wetlands on Mt. Jeombong in Gangwon-do, South Korea and climate change during the late Holocene (점봉산 고산습지의 화분분석과 홀로세 후기 기후변화)

  • Yoon, Soon-Ock;Kim, Minji;Hwang, Sangill
    • Journal of The Geomorphological Association of Korea
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    • v.20 no.4
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    • pp.101-115
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    • 2013
  • 11 alpine wetlands at the upper reaches of Bangtae River on a high flat summit around Mt. Jeombong were found. Two core samples(JB-1 and JB-2) among them were collected in order to reconstruct paleovegetation history and climate change using pollen analysis. Pinus and Quercus dominated at the wetland of JB-2 with a deep water depth were developed from 1,700 yr BP to 1,000 yr BP of the pollen zone I. Subsequently Quercus dominated in the pollen zone II from 1,000 to 400 yr BP, and it is supposed that warm weather prevailed with oak climax forest corresponding to the Medieval Warm Period. Moreover, sphagnum grew densely in the alpine wetlands and the wetlands were extended widely on the summit around Mt. Jeombong with the beginning of subzoneIIc at JB-2. The pollen zone III from 400 yr BP to the present with an increase in Pinus and a decrease in Quercus suggests cold climates under the Little Ice Age. Moreover, human disturbances at JB-2 were more significant than those at JB-1, based on the increase in Pinus.

Development of Habitat Suitability Analysis Models for Wild Boar(Sus Scrofa) : A Case Study of Mt. Sulak and Mt. Jumbong (멧돼지 서식지 적합성 분석 모형 개발 -점봉산, 설악산 지역을 대상으로-)

  • 김원주;박종화;김원명
    • Spatial Information Research
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    • v.6 no.2
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    • pp.247-256
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    • 1998
  • The objective of this research was to develop habitat suitability models for wild boar (Sus Scrafa) in Mt. Sulak National Park and Mt. Jumbong Natural Forest Reserve. The study area is covered-with climax temperate hardwood forests ot'mainly Mongolian oak ($\textit{Quercus mongolica}$), and has diverse wildlife species including wild boars. Three suitability models - summer, fall, and annual models - were developed. These models were based on slope, aspect, forest types, forest year classes, distance from streams and trails. Habitat data collected through telemetry were used for the models. The accuracy of the models was tested by comparing observed traces of wild boar in Mt. Jurnbong, and most traces were on suitable areas on the suitability maps.

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Differences in Phenological Phases of Plants Subsequent to Microclimate Change (미기후 변화에 따른 식물계절 차이)

  • Jo, Hyun-Kil;Ahn, Tae-Won
    • Korean Journal of Environment and Ecology
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    • v.22 no.3
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    • pp.221-229
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    • 2008
  • This study observed and compared phenological changes in the spring for some native woody plants growing at Mt. Jumbong and Mt. Bongeui located at central districts of our country, and also inquired into the phenological difference subsequent to microclimate change by measuring its related environment factors as well. The average air temperature at a survey point of Mt. Jumbong from January to May in 2004 was $4.1^{\circ}C$ lower than that of Mt. Bongeui. As for the soil temperature in April by a survey section within Mt. Jumbong, the soil temperature on the west and northwest slopes was $1.8^{\circ}C$ and $4.4^{\circ}C$ lower than that of the south slope, respectively. It was found that the earliest tree species in a flowering period was Lindera obtusiloba among the sample woody plants and its flowering began in late March at Mt. Bongeui and in early April at Mt. Jumbong. The flowering of the same species began faster on the south slope than the west or north slope; in case of the tree species flowering in early spring, there appeared about two-week interval between the survey sites. Likewise, leafing time of the same species was two weeks earlier at Mt. Bongeui(in mid-April) than at Mt. Jumbong(in early May). Nuttonson's Index and Year Day Index for the flowering and leafing time of the same species showed similar value between the survey sites. It is analyzed that the transition in phenological phases between the sites is mainly caused by temperatures; further, it is implied that the climate changes and rise in temperatures could expedite the changes in phenological phases more than ever.

Distribution of Lepidoptera on Forest Stand in Central Gangwon Area(II) (강원 중부지역 산림 내 나비류 분포에 관한 연구(II))

  • Chang, Suk Jun;Choi, Jong Won;Sim, Sang Jun;Kim, Jong Kuk
    • Journal of Forest and Environmental Science
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    • v.22 no.1
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    • pp.58-65
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    • 2006
  • This study investigated to distribution of Lepidoptera on the forest stands of cental Gangwon area from July to August in 2005. Collected Lepidoptera in the study area were total 462 individuals 123 genus 15 family and were collected 166 individuals, 66 genus, 15 family in Jumbong Mt., 159 individuals 65 genus 15 family in Eungbok Mt. and 137 individuals 40 genus 9 family in Odae Mt.. Dominant species in study area were Ampelophaga rubiginosa 54 individuals, Antheraea yamamai 35 individuals, Dendrolimus superans 27 individuals, Triphaenopsis jezoensis 14 individuals, Lymantria monacha 13 individuals. Shannon species diversity index(H') and Evenness index (J') were 1.52, 0.84 in Jumbong Mt., 1.69, 0.91 in Eungbok Mt., 1.87, 0.83 in Odae Mt. respectively. Community similarity index showed the lowest value in Jumbong Mt. and Odae Mt. as 0.11, the highest value in Jumbong Mt. and Odae Mt. as 0.28.

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The Forest Communities of Mt. Chombong Described by Combined Methods of Classification and Ordination (Classification과 Ordination 분석법(分析法)의 병용(竝用)에 의한 점봉산일대(點鳳山一帶) 삼림군집(森林群集)의 해석(解析))

  • Kim, Ji Hong
    • Journal of Korean Society of Forest Science
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    • v.78 no.3
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    • pp.255-262
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    • 1989
  • Vegetation data of the mixed mesophytic forest in Mt. Chombong area were analyzed by the methods of classification and ordination. 'Weighted group average linkage cluster analysis' recognized five distinctive vegetation groups, based on the abundance data of 83 woody plant species in 70 sampling units. The species diversity was also examined for each group. The importance values of 42 tree species in the groups were subjected to principal component analysis (PCA). The PCA ordinated five vegetation groups on the first two axes, so as to compare similarity among them in terms of species composition. Acer palmatum, Fraxinus rhynchophylla, Quercus mongolica, and Acer mono had greatest influence on the determination of group scores with high eigenvectors (component loadings) in the first axis. Distribution of these four dominant species appeared to be important in determining community association in this diversified forest.

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