• Title, Summary, Keyword: 花粉分析

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Paleoecological Aspect using Palynology since 4,000 Year B. P. in the Lowland of Western Central Korea (화분분석에 의한 한국 중서부 저지대의 4,000년전 이후 고환경)

  • 이상헌;전희영;윤혜수
    • The Korean Journal of Quaternary Research
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    • v.13 no.1
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    • pp.1-23
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    • 1999
  • A palynological investigation of the Annyeong-ri, Hwasung-gun Gyeonggi-do, in where Yung-Nung and Gun-Nung are located, was carried out for the first time. From the pollen analysis, two pollen zones are established: Pollen Zone I : Ainus-Quercus-Pinus and Pollen Zone Ⅱ : Pinus. Pollen Zone I is characterized by Mixed coniferous and deciduous broadleaved vegetation during about 3,500 yr. B.P.-2,000 yr. B.P., while after 2,000 yr. B.P. Pollen Zone Ⅱ appears to be Coniferous vegetation and Evergreen broadleaved vegetation. The former reflects there was a lowland fluvio-lacustrine environment before fully lacustrine one which represents the latter. Pollen analysis indicates the vegetation before 2,000 yr. B.P. was controled by environmental factor such as climate conditions, whereas after that time vegetation was strongly effected by human's impact. It is concluded that pollen analysis is useful to find out the relationship between vegetation history and man's interference. In addition freshwater algae play to tell the lake environments.

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Pollen analysis of the Lake Hane, Ohda-city, Shimane Prefecture, Southwest Japan (남서 일본 도근현 大田市 파근호 퇴적물의 화분분석)

  • ;Masami Watanabe;Tadashi Nakamura
    • The Korean Journal of Quaternary Research
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    • v.17 no.1
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    • pp.39-47
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    • 2003
  • The pollen of the sediments from the Lake Hane were analysed for reconstruction of vegetation history around Ohda-City in Southwest Japan, and the correlation with the pollen zone reported for the Lake Shinji. From the pollen assemblages of 29 samples from core OH94 (19.7 m), two pollen zone were established, and they were subdivided into five subzones in ascending order as following; Cyclobalanopsis-Catanopsis pollen zone (Cyclobalanopsis subzone, Catanopsis subzone and, Podocarpus subzone), and Gramineae pollen zone (Cryptomeria subzone and Cyclobalanopsis-Quercus subzone). The K-Ah volcanic ash is identified in the Cyclobalanopsis-Catanopsis pollen zone. We estimated the beginning of the Cyclobalanopsis-Catanopsis pollen zone was before c.a. 6,300 BP.

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홀로세 후기 밀양강 중류부 금천리 일대의 환경변화

  • 김혜령;윤순옥
    • Proceedings of the KGS Conference
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    • pp.34-39
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    • 2003
  • 밀양강 중류부 충적평야의 화분분석 결과를 통하여 홀로세 후기 동안의 식생환경을 복원하고 한반도 남부지방의 농경의 기원과 확산에 대해 검토하였다. 경상남도 밀양시 산외면 금천리 단장천 충적평야에서 화분분석을 행하였다. 고고학 유적발굴을 위해 절개한 트랜치 T6(14.75-15.90m a.s.l. : 두께 1.15m)과 T9(17.00-15.60m a.s.l. : 두께 1.4m)의 노두 단면 중에서 비교적 유기질이 풍부한 실트층 및 토탄층에서 5cm등간격으로 채취하여 목본화분(AP: Arboreal Pollen)이 200개 이상이 될 때까지 검경하였다. (중략)

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Reconstruction of Post-Glacial Environmental Changes in Yeongjong-do Island Based on Palynological Evidences (화분분석에 기초한 후빙기 영종도의 환경변화)

  • PARK, Ji-hoon;PARK, Kyeong
    • Journal of The Geomorphological Association of Korea
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    • v.19 no.2
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    • pp.173-185
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    • 2012
  • Authors performed pollen analysis in deposits at a coastal plain at Yeongjong-do Island located in Incheon, South Korea. Sampling site (7.2 m a.s.l.) belongs to the cool temperate deciduous broad-leaf forest. Environmental changes since 8,900 yrs B.P. reconstructed from pollen analysis are as follows; JS-I stage (c.a. 8,900~8,500 yrs B.P. ) was cool temperate northern mixed-forest which is comparable to the early PostGlacial pollen stage RI in Japan, in which Pinus and Quercus were dominant and Abies and Picea were also found. At that time, climate was relatively cooler and dryer than today. JS-II stage (sometime between 8,500~4,000 yrs B.P.) was Pinus-dominant coniferous forest, which is comparable to the mid-Post-Glacial pollen stage RII. Mixed forest of Pinus, Quercus and Carpinus was dominant in JS-III stage (c.a. 4,000 yrs B.P). We assumed that JS-II and JS-III stage were relatively warmer and more humid than JS-I stage, and were more like present conditions. JS-IV stage (sometime between 4,000~900 yrs B.P.) was Pinus-dominant coniferous forest which is comparable to the late Post-Glacial pollen stage RIII. JS-V stage (c.a. 900 yrs B.P. ~present) was second growth Pinus-dominant coniferous forest stage. During the last stage, non-arboreal pollen was more common than arboreal pollen and Fagopyrum appeared among the herbaceous plant, which indicates that it is comparable to the RIIIb stage which was the age of human interference. From the JS-V stage, humans in the study site started agricultural activities.

Components Analysis of Korean Pollens and Pollen Extracts (국내산 화분 및 화분 추출물의 성분 분석)

  • Lee, Boo-Yong;Choi, Hee-Don;Hwang, Jin-Bong
    • Korean Journal of Food Science and Technology
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    • v.29 no.5
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    • pp.869-875
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    • 1997
  • The chemical components of Korean pollens and pollen extracts were analysed to provide fundamental data for pollen processing and products development. The contents of crude protein, crude lipid, crude ash, crude fiber and carbohydrate of pollens were $14.0{\sim}22.3%,\;3.0{\sim}8.8%,\;2.2{\sim}3.3%,\;0{\sim}37.5%,\;and\;31.9{\sim}64.4%$ respectively, showing the specially high crude fiber content (37.5%) in Pine pollen. Almost all the carbohydrate, lipid, protein and ash components except fiber were extracted by water and n-hexane. Free sugars identified in water extracts $(10\;^{\circ}Bx)$ of pollens were fructose and glucose as major component and maltose as minor component. The proportions of three free sugars to total soluble solid content of Mixed, Acorn, and Pine water extracts were 73.6%, 85.4% and 47.7% respectively. Potassium and phosphorus content in pollens and pollen water extracts were high, but Ca, Na, Mg, Fe and Zn were not major mineral components. The essential amino acids such as leucine, phenylalanine, methionine, lysine, valine, isoleucine and threonine were contained richly in pollens and those were almost completely extracted by water. Vitamin $B_1$ and C were not detected, but only small amount of vitamin $B_2$ was detected in the pollens and pollen extracts tested. The essential fatty acids such as linoleic acid and linolenic acid were contained richly in pollens. The proportion of unsaturated fatty acids to total fatty acid content in Mixed, Acorn and Darae pollen except Pine was higher than 50%.

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Modern pollen morphological taxonomic characteristics of climate-sensitive species in Korean Peninsula (한반도 기후민감성 상록활엽수 지시종 현생화분의 형태분류학적 특성)

  • Lee, Eunmi;Yi, Sangheon;Jo, Kyoung-nam;Kim, Yongmi
    • Journal of the Geological Society of Korea
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    • v.53 no.6
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    • pp.833-844
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    • 2017
  • An identification of species level in Quaternary pollen analysis is strongly requested to reconstruct more reliable vegetation history. The precise morphological analysis of the modern pollen plays an important role to taxonomically identify the fossil pollen grains. We here have built the database of detailed pollen morphological taxonomic characteristics of climate-sensitive species such as Camellia japonica Linne and Castanopsis cuspidata var. sieboldii Nakai from the mother plants in the southern part of the Korean Peninsula. We quantitatively analyzed all diagnostic features including shape, size, ornamentation, wall thickness, aperture and so on by Light Microscope (LM) and Scanning Electron Microscope (SEM) observation. 25 pollen grains of each 2 species were morphologically analyzed in the equatorial view. Especially pollen size of Camellia japonica Linne and Castanopsis cuspidata var. sieboldii Nakai in this study area are a larger and a wider size range than that of these taxa from the neighbor countries. In the future, it will be necessary to carry out the morphological comparative analysis of additional modern pollen in different areas of South Korea under the same experimental procedure to figure out whether pollen morphological features are affected by geographical or environmental factors even in the homogeneous species. The results can help to improve an accuracy of palynomorph analysis enabling the species-level identification. Therefore, more reliable reconstruction of paleo-vegetation change and climate history based on species-level palynomorph analysis could be conducted from the Holocene sediments of the southern part of South Korea.

In Vitro Culture and Transformation by Agroinfiltration of Lisianthus (Eustoma russellianus) Pollen (Lisianthus 화분의 기내배양 및 Agroinfiltration에 의한 형질전환)

  • Park Hee Sung
    • Journal of Life Science
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    • v.14 no.6
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    • pp.1018-1022
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    • 2004
  • Optimized conditions for Agrobacterium-mediated lisianthus pollen transformation were adjusted using various factors such as temperature, pH and sucrose concentration. Pollen tube growth was successfully achieved in a medium (pollen germination medium; PGM) containing $7-15\%$ sucrose with pH in the range of 5.5-7.0 at temperature of $20-27^{\circ}C$. Lisianthus pollen was vacuum-infiltrated with Agrobacterium cell suspension for 20 min, and transformed pollen was confirmed by GUS histochemistry and Southern hybridization following RT-PCR. Transgenic pollen system may be utilized for establishing an area of plant transient expression systems based on the convenient pollen transformation procedure presented in here.

三浪建周邊平野의 地形發達

  • ;;Jo, Wha Ryong;Lee, Mi Heng
    • Journal of the Korean Geographical Society
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    • v.23
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    • pp.1-14
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    • 1981
  • 이 글에서는 다음의 내용을 다루었다. 1. 지형분류 2. 퇴적물 입도분석 3. 화분분석

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