• KSBB Journal
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• v.25 no.3
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• pp.271-276
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• 2010

This study was carried out to obtain the basic information for isoflavonoid contents that can be used to index Astragalus membranaceus B. cultivated in the Republic of Korea and China. Isoflavonoid contents in Astragalus membranaceus B. which were cultivated in various areas (Jecheon, Jeongseon, Yeongju, and Taebaek in Korea, and China) and ages (1-year-old, 3-years-old) were determined. Calycosin and formononetin as major constituents were determinated by HPLC method in Astragalus membranaceus B. The results show that there were no statistically significant differences for the average contents of isoflavonoids among 1-year-old and 3-years-old. However, isoflavonoid contents were significant differences according to the cultivation areas. HPLC analysis showed that the calycosin content of 1-year-old at Jeongseon was the highest level of $0.090{\pm}0.002%$ and that of 1-year-old at Yeongju was the lowest level of $0.010{\pm}0.001%$. The highest level of formononetin content was $0.050{\pm}0.001%$ of 1-year-old at China, while the lowest level was $0.020{\pm}0.001%$ of 1-year-old at Yeongju. These results strongly suggest that contents of isoflavonoid in Astragalus membranaceus B. might be quite different with respect to the cultivation areas.

• Journal of the Korean Institute of Landscape Architecture
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• v.38 no.1
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• pp.98-106
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• 2010

Bangseonmun(訪仙門) is the attractive spots where Shinseon(神仙: Taoist hermit) ideas that makes Mt. Younju(瀛洲山) or the current Mt. Halla mystique has still remained and situated at Hancheon(漢川) Valley. Bangseonmun, which is known as 'Landscape Setting Here($L_{SH}$)' of Youngguchunhwa(瀛丘春花), which is one of ten famous spots in Youngjusipkyung(瀛洲十景), and Deulreonggui refer to 'the gate to the place where Shinseon is living.' It is described as the path to Mt. Youngju for Shinseon and the boundary between the mundane world and the world beyond the mundane. The old scholars at Mt. Halla entered the gate and met Shinseon, carving the word or picture of Bangseonmun, Whanseonmun, Wuseondae or Deungyounggu so as to structure the enchanting image on Bangseonmun. It is the poetic expression of the taste for the arts, breaking from the troublesome mundane world and riding the white deer to become the Shinseon, the desire for the ideal world in Taoism, and the identity of four famous scenic spots of Bangseonmun. Besides its enchanting meaning and the locational value of Bangseonmun, geological features of the valley and river and ecological value prove its unique value as a natural scenic beauty. Not to mention the locational identity and enchanting meaning of the poets carved in Meeaegak of Bangseonmun and the scenic view of 'Youngguchunhwa' as the subject of 10 famous scenes of Youngju, it is the place for communing with nature with the natural beauty of Bangseonmun Valley. As the cultural place for being together with Jeju people, it simultaneously shows the typical model as a scenic spot in our living. Viewing the scenic value and standard from the aspect of the Cultural Properties Protection Law, Bangseonmun Valley in Jeju must be the typical place and space that meet the requirements to become scenic sites.

• Korean Journal of Plant Taxonomy
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• v.42 no.3
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• pp.207-210
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• 2012

Hylodesmum laxum (Candolle) H. Ohashi & R. R. Mill subsp. laxum was recorded from Korea. The species is widely distributed in S. E. Asia, but in Korea the plant was the first found in the evergreen forest of Seogwipo-si in Jeju-do. Hylodesmum H. Ohashi & R. R. Mill was raised as a separate genus recently based on Desmodium sect. Podocarpium Benth. Except for two species, all Korean species included in the former Desmodium are classified into the genus Hylodesmum. A key to and enumeration of the Korean species of Hylodesmum are provided.

• Proceedings of the Korean Nutrition Society Conference
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• 2002.05a
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• pp.136-136
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• 2002

• Proceedings of the Korean Nutrition Society Conference
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• 2001.11a
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• pp.61-61
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• 2001

• Proceedings of the Korean Society of Laser Processing Conference
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• 1998.05a
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• pp.51-53
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• 1998

• Korean Architects
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• s.644
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• pp.106-111
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• 2022

• Korean Journal of Plant Taxonomy
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• v.42 no.3
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• pp.211-214
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• 2012

Platanthera brevicalcarata Hayata (Orchidaceae), previously known to be distributed from Taiwan to southern Japan, was found in the Jeju-do, Korea. This species is distinguished from the related taxon Platanthera chlorantha by its small plant size, white sepal with distinct one green vein, and short-cylindrical spur. The local name Young-ju-je-bi-ran is originated from the local name of Mt. Halla. The morphological characters and illustration of the species are provided with line drawing and photograph from the natural habitat.

• Economic and Environmental Geology
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• v.55 no.5
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• pp.439-445
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• 2022

Organic pollutants that contained in stream sediments have origins of mountain soil in natural and cattle manure in human activity. Nitrogen and carbon isotope analysis for mountain soil, cattle manure and stream sediment were performed for contribution evaluation of organic pollutants in Toil stream of Yeongju dam basin. Average carbon isotope ratio(δ¹³C) is -25.17‰, -22.34‰, and -26.39‰ for river sediments, cattle manure and mountain soil, respectively. Result of carbon isotope analysis suggests that river sediments are more affected by acid soils. Average value of the nitrogen isotope ratio (δ¹⁵N) is 9.46% for river sediment, 1.99% for mountain soil, and 19.53% for cattle manure. Result of nitrogen isotopic analysis show that contribution of cattle mature is slightly higher than that of mountain soil in Toil stream sediments.

• 한국약용작물학회:학술대회논문집
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• 2008.11a
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• pp.441-442
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• 2008