• Korean Journal of Environment and Ecology
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• v.18 no.2
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• pp.210-220
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• 2004

The purpose of this study is to propose the raw data of conservation and restoration by analyzing the environmental and growth characteristics in Abeliophyllum distichum habitats. The types of soil were sandy loam, loam and silty clay loam and the correlation on chemical characteristics of soil appeared that T-N and C.E.C were highly correlative. In case of growth characteristics, height and diameter in 1st site, crown in 2nd site, number of leaves in 5th site and number of seeds in 4th site were better than other sites. In the results of correlation on growth characteristics, height and diameter were highly correlative. In case of growth and chemical characteristics, EC and height were highly correlative. In the results of regression analysis, R-square of height and EC was some 70.4％ and that of number of leaves and T-N was some 70.2%. To conserve and restore Abeliophyllum distichum habitats, there were demanded that the accurate environmental analysis that considered such diverse factors as light intensity, temperature, genetic quality and so forth.

• 한국지구과학회:학술대회논문집
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• 2010.04a
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• pp.107-107
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• 2010

Geology and stromatolite fossil localities of Socheong Island are reviewed on the basis of previous studies and recent field survey. A new fossil locality of stromatolites which are very well preserved is recognized in Bunam area, northeast of Socheong Island. An outcrop composed of sandstone and shale alternations which exhibit well-developed laminations and folds is also found in the east of the Socheong harbor, and it is regarded as one of the symbolic features of the geology in Socheong Island. Stromatolite fossil localities of Socheong Island contains diverse and well-preserved Late Proterozoic stromatolites which are correlated with those from the Mukchon and Myoraksan series of the Sangwon System and diverse sedimentary structures such as ripple marks, desiccation cracks, and raindrop imprints. Stromatolites of Socheong Island, the oldest fossil Natural Monument of Korea, should be preserved at the national level, and continued intensive research must be conducted.

• Korean Journal of Environment and Ecology
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• v.7 no.2
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• pp.213-220
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• 1994

This study was conducted to investigate bird community and to suggest a proper way how to manage and protect bird community in Tokyusan National Park. The survey was carried over 2 main trail districts by line transect method at 20, February and 22, July in 1993. The observed birds were belong to 5 orders 17 families 34 species, they also have Sparrow Hawk Accipiter nisus, Kestrel Falco tinunnculus(natural monument no. 323), White-backed Woodpecker Dendrocopos leucotos(R) and Japanese Waxwing Bombycilla japonica(R). It is estimated that grass region above 1,000m altitude provided breeding habitats for Gray-headed Bunting Emberiza fucata in summer and wintering habitats for Rosy Finch Leucosticte arctoa in winter, This shows that this region should be protected for inhabitation of these birds. Mujukucheontong valley of Tokyusan National Park, which had been a good habitat for valley-inhabituating birds before twenty years ago, has a lower species richness by increasing using density, and so this valley shoud be properly managed urgently.

• Korean Journal of Environment and Ecology
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• v.16 no.4
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• pp.487-497
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• 2003

Some literatures for the avifauna of Baekdudaegan from Jirisan to Deokusan were reviewed. A total of 136 species belong to 45 families, 15 orders was listed. Of which, 132 species were recorded in Jirisan National Park, 63 species were in Hamyang area,46 species were Jangsu area, and 63 species were in Deokyusan National Park. Status of migrants of these birds were classified as follows: 42 species of residents,40 species of summer visitors,31 species of winter visitors, and 23 species of passage migrants. Legal protected birds were listed 23 species including 15 protected species and 14 natural monument species. Of them, only three species, Accipiter soloensis, A. nisus, Falco tinnunculus were widely distributed. And the others, Aix gatericuzata, Perms apivorus, Accipiter gentilis, A. gularis, Buteo logopus, B. buteo, Circus cyaneus, Falco columbarius, Grus vipio, Bubo bubo, Asio otus, Otus scops,0. bakkamoenu, Ninox scutuznta, Strix aluco, Dryocopus martius, Dendrocopos nanus , Pitta brachyura, Galerida cristnta, Terpsiphone atyocauduta were showed restricted distribution. Therefore, it is considered that careful consideration should be given to these conservation measures.

• Korean Journal of Ecology and Environment
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• v.41 no.1
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• pp.104-110
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• 2008

The egg development and early life history of Korean endangered natural monument fish, Iksookimia choii, were investigated in 2006. The eggs from the females were obtained by injecting 10 IU $g^{-1}$ of human chorionic gonadotropin and inseminated by wet method in the laboratory. The fertilized eggs were $1.1\sim1.3mm$ in diameter and had no oil globules. Hatching of the embryo began about 24 hrs after fertilization under water temperature of $25^{\circ}C$. The newly-hatched larvae were $2.5\sim2.7mm$ in total length (TL), and their mouth and anus were not yet opened. Six days after hatching, the postlarvae were $4.7\sim5.4mm$ TL, and tip of the caudal notochord was flexed $45^{\circ}$ upward. The juveniles stage was reached when all fin-rays were formed at 35 days after hatching, and their total length were $20\sim22mm$.

• The Korea Journal of Herbology
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• v.36 no.5
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• pp.125-133
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• 2021

Objectives : Thymus quinquecistatus var. japonica (H.Hara) is a member of the genus Thymus of perennial aromatic herb, and it's designated as a natural monument of South Korea. It has traditionally been known to have protective or therapeutic effects on various human disease including cerebrovascular and neurological disease. Recently it was suggested that essential oil extracted from thyme has anti-fungal and anti-bacterial effect. The aim of this study is to investigate anti-inflammatory effect of Thymus quinquecistatus var. japonica in Raw 264.7 macrophage cell line. Methods : The cytotoxic effects of water and 70% ethanol extracts from Thymus quinquecistatus var. japonica, was tested using MTT assay. Inhibitory effects of the extracts to nitric oxide production and mRNA expression of inflammatory cytokines were examined by RT-PCR. Also, MitoSOX-red assay and JC-1 assay were performed to determine if the extracts can inhibit mitochondrial ROS accumulation and maintain mitochondrial membrane potential. Results : In LPS-induced inflammatory response, the extracts efficiently reduced nitric oxide NO production through inhibiting mRNA expression of iNOS enzyme. In addition, expression of the proinflammatory cytokines, IL-1𝛽 and IL-6, was also down-regulated by the extract treatments. Excessive accumulation of mitochondrial ROS induced by LPS was inhibited in the extract treated cells, which finally protected mitochondrial membrane potential. Conclusions : These results showed that water and 70% ethanol extracts from Thymus quinquecistatus var. japonica have anti-inflammatory effect through down regulation of IL-1𝛽, IL-6, and iNOS, and also have antioxidative effect against mitochondrial ROS accumulation that promote inflammatory response.

• Korean Journal of Heritage: History & Science
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• v.48 no.3
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• pp.120-137
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• 2015

This study aims to understand the ways in which experience programmes affect visitors' attitude at cultural heritage sites. Through a literature review, this study constructed measurement scales that specifically measure experience at the cultural heritage sites. Afterwards, this study measured visitors' experience, satisfaction, and attitude at cultural heritage sites. This study found that visitors experience fun, authenticity, leaning, and a sense of escaping/togetherness through the experience programmes. Second, authenticity, fun and learning influence their satisfaction in terms of their visit, whereas a sense of escaping/togetherness does not link to their satisfaction. Third, visitors' satisfaction is the key determinant in changing their attitude. Fun is the key determinant that directly influence visitors' attitude change, whereas authenticity is the key determinant that indirectly influence visitors' attitude change.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.22 no.1
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• pp.73-84
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• 2019

In this research, it is a basic study to investigate the population of birds using UAVs. The research area is Ardeidae species(ASP) habitat and has long-term monitoring. The purpose of the study is to compare the ASP populations which analyzed ground observational survey and UAVs imagery. We used DJI's Mavic pro and Phantom4 for this research. Before investigating the population of ASP, we measured the escape distance by the UAVs, and the escape distances of the two UAVs models were statistically significant. Such a result would be different in UAV size and rotor(rotary wing) noise. The population of ASP who analyzed the ground observation and UAVs imagery count differed greatly. In detail, the population(mean) on the ground observation was 174.9, and the UAVs was 247.1 ~ 249.9. As a result of analyzing the UAVs imagery, These results indicate that the lower the UAVs camera altitude, the higher the ASP population, and the lower the UAVs camera altitude, the higher the resolution of the images and the better the reading of the individual of ASP. And we confirmed analyzed images taken at various altitudes, the individuals of ASP was not statistically significant. This is because the resolution of the phantom was superior to that of mavic pro. Our research is fundamental compared to similar studies. However, long-term monitoring for ASP of South Korea's by ground observation is a barrier of the reliability of the monitoring result. We suggested how to use UAVs which can improve long-term monitoring for ASP habitat.

• The Korea Journal of Herbology
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• v.32 no.2
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• pp.41-47
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• 2017

Objective : The aim of this study is to investigate anti-arthritis activity using a korea's natural monument No. 265 designate 'Yeonsan-Ogye'. In this study, research by using extracts from different concentration of the Yeonsan-Ogye through an MIA-induced arthritis animal model was being conducted in vivo and scientifically verifying the efficacy of medicinal food. Methods : Yeonsan-Ogye was administered 500 mg/kg/day, 1000 mg/kg/day, 2000 mg/kg/day to SD-Rat, where arthritis was induced by monosodium iodoacetate (MIA) at $60mg/m{\ell}$. MMP-9, COMP, CTXII, calcitonin and glycosaminoglycan level in serum were measured by ELISA. The changes of relative hind paw weight bearing ratio by Incapacitance Test Meter and The cartilage of meniscus volume was examined and 3-D high-resolution reconstructions of the cartilage of meniscus were obtained using a Micro-CT system. Also, the histopathological analysis of knee was observed by H&E and safranin-O staining. Results : Production of MMP-9, COMP (all groups) and CTXII (500, 1000 mg/kg/day) level in serum was decreased, respectively, in comparison with control. The other way, production of calcitonin (500, 1000 mg/kg/day) and glycosaminoglycan (all groups) level in serum, Hind paw weight bearing ratio (all groups) was increased, espectively, in comparison with control. The cartilage of patella volume in micro-CT increased significantly. In addition, all groups showed a increase in the cartilage volume and proteoglycan. Conclusion : The results for Yeonsan-Ogye showed significant antiarthritis activity in serum and the cartilage. Therefore, it is thought to be that Yeonsan Ogye can be utilized as a variety of new korea medicie and health foods against arthritis diseases.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.34 no.1
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• pp.118-128
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• 2016

The purpose of this study is to present efficient methods of preserving and managing the fish shelter forest in Mulgun-ri on the southern coast of Korea on the basis of its humanistic, sociological and ecological characteristics. The study object is Korean natural monument No. 150, which is presumed to have been forested by descendants of Jeonju Lee Family who settled there, and village rituals are held every October to pray for the peace of the village. The forest is managed by Namhae-gun as a historical and cultural resource as well as its disaster-preventing, economic, and environmental and ecological functions. The linear form of the area is $23,962.6m^2$ and farmland(48.5%) and urbanization area(38.2%) are extensively located in its periphery area. Actual vegetation was sub-classified into three types of land according to use pressure and whether or not damage was done: land where its stratification was formed; land where it was restored, and the land where it was damaged. Plant communities were sub-classified into Aphananthe aspera community(I) and Zelkova serrata community(II) which had a low use pressure; Z. serrata-Chionanthus retusa-A. aspera community(III) and A. aspera-Z. serrata community(IV) which had a high use pressure; and Celtis sinensis-A. aspera community(V) whose underlayer was damaged by use. Fragmentation of the forest is under way and its inside vegetation growth is hampered due to the installation of traffic and resting facilities such as the through roads costal roads, wooden-deck walkways, parking lots, washstands, etc. As a restoration management plan for this, the following were required: an establishment of preferred restoration area; a selection of restoration vegetation species; and an appropriate restoration method. The damaged area($7,868.2m^2$) will have to be set up as the preferred restoration area; seedlings of restored vegetation species should be raised with dominant species within the forest(i.e., Z. serrata, A. aspera, C. sinensis, and C. retusa) as their 'mother trees' for the benefit of for the next-generation forest; and sub-tree and shrub layer should be complementarily planted with 5 and 115 trees(unit $100m^2$) respectively to facilitate the formation of a multi-layered vegetation structure. In addition, resting facilities scattered inside the forest should be demolished; and indiscriminate use of them should be controlled; management and monitoring should be carried out so that the area can be preserved and restored as a deciduous broad-leaved forest.