• Korean Journal of Plant Taxonomy
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• v.39 no.4
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• pp.254-263
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• 2009

The distribution and habitat characteristics of Echinosophora koreensis (Nakai) Nakai were investigated to compile basic data for conservation and restoration. The species Echinosophora koreensis is distributed within fourteen regions of the Korean Province of Gangwon, including Yanggu-gun, Inje-gun, Cheorwon-gun, Chuncheon-si and Hongcheon-gun. Natural habitats were located at altitudes of 192-626 m, with inclinations of $1-45^{\circ}$. One hundred and fifty seven vascular plant taxa were identified from 42 quadrats in 14 habitats. Dominant species among the woody plants, based on importance value, were Pinus densiflora and Quercus dentata in the tree (T1) layer, Quercus variabilis, Pinus densiflora and Quercus mongolica in subtree (T2) layer, and Fraxinus rhynchophylla, Prunus sargentii, Zanthoxylum schinifilium, and Ulmus davidiana var. japonica in the shrub (S) layer. Importance values for members of the herb layer were: Echinosophora koreensis 28.34%; Polygonatum odoratum var. pluriflorum 10.21%; Spodiopogon sibiricus 7.60%; Atractylodes ovata 4.77% and Carex lanceolata 4.13%. The importance values of the last four species were high, so they were at affinity with Echinosophora koreensis in their habitats. Average species diversity was 1.03, and evenness and dominance were found to be 0.82 and 0.16, respectively. The soil types were sandy loam and loam. Average field capacity was 13.28%, and the organic matter and soil pH were 6.70% and 5.77, respectively.

• Journal of Korean Society of Forest Science
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• v.99 no.4
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• pp.553-558
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• 2010

This study was conducted to clarify the differences in rodents population densities between natural restored and red pine silvicultured forests after forest fire in Samcheok, Gangwon Province, Korea from March to December 2008. One ha size of 3 study plots were set up in each natural restored and silvicultured stand. We trapped the small rodents during 4 consecutive nights every 2 months in each stand. Understory coverage and number of shrub stems were higher in silvicultured stand than in natural restored stand. Coverage of overstory, suboverstory and midstory, number of tree stem, woody seedling stems and dead wood, and amount of coarse woody debris were higher in natural restored stand than in silvicultured stand. Six hundred eighty eight individuals of four species, such as Apodemus agrarius, A. peninsulae, Eothenomys regulus and Tamias sibiricus were captured in our study. Number of captured small rodents were higher in natural restored stand than in silvicultured stand. Also, species compositions were differed in both stands. The captured number of A. agrarius and A. peninsulae were most highest in April and December. E. regulus were shown higher number of captured in April and June, and T. sibiricus were in June and October. Removal of coarse woody debris and silvicultural practice would not be good for the inhabitation of small rodents. For the conservation of small rodents diversity, management of understory and canopy would be needed in forest fired area.

• Journal of Korean Society of Forest Science
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• v.103 no.1
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• pp.147-151
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• 2014

This study was conducted to clarify the characteristics of amphibian and reptile (herpetofauna) populations in a coniferous plantation and a deciduous forest from July to September 2013 in national forest, Hongcheon, Gangwon province, Korea. Coverage of understory, mid-story and overstory were more developed in a deciduous forest. We used line transect sampling method on a total of 4 transect lines, 2 lines in each forest type. Fifty two individuals of 4 amphibian species and 11 individuals of 3 reptile species were recorded. Mean observed number of herpetofauna species, individuals and species diversity index (H') were not significantly different between coniferous plantation and deciduous forest. This result related to ecological characteristics of herpetofauna. Habitats of herpetofauna were influenced on not only vertical structure of forests, but also climatic variables, thermoregulation and prey availability. The long-term monitoring and research on habitat preference and seasonal ecological traits of herpetofauna would be needed for conservation and management of herpetofauna in forest areas.

• Journal of Korean Society of Forest Science
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• v.103 no.1
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• pp.59-64
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• 2014

This study describes analysis of genetic diversity and spatial genetic structure of Korean poplar (Populus koreana Rehder) in Mt. Odae using I-SSR markers. P. koreana is a deciduous broad-leaved tree species that primarily grows in the alpine valleys of China, Russia and North Korea. In South Korea, P. koreana is found limitedly in Gangwon province. Especially, the population in Mt. Odae is located on the southern limit line, its importance is emphasized from the genetic resource conservation perspective. The Shannon's diversity (I=0.230) and the expected heterozygosity (He=0.151) were relatively low as compared with those of other plant species. Spatial autocorrelation analysis using Tanimoto's distance showed that the genetic patch was founded within 400 m. It is suggested that individual trees for ex situ conservation should be sampled with a minimum distance of 400 m between trees.

• The Journal of Engineering Geology
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• v.18 no.2
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• pp.191-196
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• 2008

This study is a case study for application of the RTI warning model to Korea which was previously developed to predict landslide potential and occurrence time during a rainfall event. The rainfall triggering index (RTI) is defined as the product of the rainfall intensity I (mm/hr) and the effective accumulated rainfall $R_t$ (mm). This index is used to evaluate the landslide and debris-flow occurrence potential at time t during a rainfall event. The upper critical value ($RTI_{UC}$) of RTI and the lower critical value ($RTI_{LC}$) of RTI can be determined by historical rainfall data of a certain area. When the rainfall intensity exceeds the upper critical value, there are high potential to occur land-slides. The analysis result can predict landslide occurrence time of an area during a rainfall event as well as land-slide potential. The result can also be used as an important data to issue early-warning of landslides. In order to apply the RTI warning model to Korea this study analyzed rainfall data and landslides data in Inje county, Gangwon province, Korea from July 13 to July 19, 2006. According to the analysis result, the rainfall intensity exceeded the upper critical value 23 hours ago, 11 hours ago, and 9 hours ago from 11:00 in the morning, July 16. Therefore, landslide warnings would be issued three times for people evacuation for avoiding or reducing hurts and dam-ages from landslides in mountainous areas of Inje.

• Journal of Korean society of Dental Hygiene
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• v.5 no.2
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• pp.263-278
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• 2005

This study investigated the current oral health conditions of the elderly at home and welfare facilities in their age over 65 years around some rural areas in Gangwon province, which would expect the fewer medical benefits even with lower interest than urban areas, despite of relatively high ratio of elder populations, so that it could prepare a basic document necessary to determine certain planned quantification for the benefit of elder's oral healthcare. As of the end of December 2004 both 50 elders at home and 50 elders at welfare facilities were randomly sampled in their age over 65 years in Samcheok city. As a result of this study, it was found that the elders at welfare facilities scored 15 pts. in DMFT index level typical of oral health conditions, which was higher than the elders at home. In addition, the elders at welfare facilities scored 26.0% in the coexistence of immobile bridge and partial denture higher than the elders at home with regard to the presence of intraoral prosthetic appliance. The results of analyzing the difference in the one-year dental visiting experience of respondents hereof showed that the elders at home were relatively more in ratio(62.0%) than those at welfare facilities, while many of the former group(38.0%) had relatively more handicap in masticatory movement than the latter one with regard to the conditions of dental prosthesis in use. Besides, many of the elders at facilities(30% or more) felt subjective symptoms of periodontal disease including bleeding or swelling, which indicates higher ratio than the elders at home. Finally, the elders at home used to brush their teeth at more frequency on a daily basis than those at facilities, while the latter group suffered general body disease more than the former group. Summing up, it is concluded that a formulated oral healthcare system will become more needed in near future than now for the benefit of the elderly living in welfare facilities, while nationwide policy-level supports would be urgent for them in the aspect of national welfare.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.8
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• pp.152-161
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• 2017

The purpose of this study was to establish a model for the structural relationship between the participation motivation and flow experience, self-achievement and life satisfaction in windsurfers. The subjects in this study were 206 selected male and female adults who windsurfed on a beach in Yangyang-gun, Gangwon Province. The statistical packages SPSS 20.0 and AMOS 16.0 were used to conduct the statistical analysis of the collected data. First, the participation motivation of the windsurfers exercised a significant influence on their flow experience(t=18.156, p<.001). Second, the participation motivation of the windsurfers had a significant impact on their self-achievement(t=19.848, p<.001). Third, the participation motivation of the windsurfers affected their life satisfaction in a significant way(t=8.219, p<.001). Fourth, the flow experience of the windsurfers impacted on their self-achievement in a significant manner (t=9.769, p<.001). Fifth, the flow experience of the windsurfers had no significant impact on their life satisfaction(t=16.033, p<.001). Sixth, the self- achievement of the windsurfers didn't exert any significant influence on their life satisfaction(t=17.438, p<.001). The findings of this study can be used to help windsurfers improve their quality of life.

• Korean Journal of Agricultural and Forest Meteorology
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• v.6 no.4
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• pp.256-264
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• 2004

Vegetation structure was investigated to provide basic information on revegetation of abandoned coal mine lands in Borim, Sungwon, Hyeopjeong, Daedong and at a control site in Taebaek. The upper layer of the control site consists of 7 species and the Importance Value was highest for Pinus densijlora, but there were no species in the four abandoned coal mines. The number of dominant species in the middle layer of each coal mine site was 2 for Borim, 2 for Sungwon, 3 for Hyeopjeong and 2 for Daedong. In the case of the lower layer in Borim, Sungwon, Hyeopjeong and Daedong, there were 12, 14, 9 and 8 species, respectively. The lower level importance values were highest for Pinus densiflora in Borim, for Amorpha fruticosa in Sungwon and for Rubus crataegifolius in the Hyeopjeong and Daedong coal mines. Weigela subsessilis, R. crataegifolius, P. densiflora, Betula platyphylla var. japonica, Stephanandra incisa, Lespedeza crytobotrya and A. fruticosa appeared in the lower layers of abandoned coal mines. Species diversity of the lower and the herbaceous layers ranged from 0.800 to 0.952 and 0.699 to 0.907 in abandoned coal mines. Evenness and dominance in all abandoned coal mines ranged from 0.840 to 0.949 and 0.051 to 0.160.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.34 no.2
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• pp.63-74
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• 2016

The purpose of this study is to expand a prospect of a few-remaining Byeolseo scenic sites of Gangwon-do(Province) through determining placeness formation, prospect characteristics, and landscape meanings of Gumi(Nine beauties) and Sipalgyung(18 scenic views) in Gumijeongsa. Gumijeongsa, which is located in a riverside of the Goljicheon(stream), a part of upstream of Namhangang, is the oldest existing Nujung architecture in the Jeongseon area. This study tried to unearth the Gumijonegsa's locational and formational characteristics through literature review and a field survey. Especially, through the field survey, this study tried to figure out the landscape meanings and contents of Gumi and Sipalgyung by Gumijeongsa's position and its prospect compositions. As a result of this study, Gumi and Sipalgyung of Gumijeongsa are variations of typical traditional culture of Gugok(Nine river bends) and Palgyung(Eight scenic views). Ja Lee, the founder, administrated Gumijeongsa as a core residence of Gugok culture. He established beautiful nine viewpoints from the building, named Gumi, and added 18 detailed landscapes(two landscapes for one beauties), instead of establishing nine river bends of the stream. The Gumi and Sipalgyung are formed by reflection of beautiful locational characteristics from the views in Gumijeongsa, thus the Gumi is the concept which is a unique variation of Gugok and Palgyung culture.

• Journal of the Korean Society of Groundwater Environment
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• v.7 no.3
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• pp.116-124
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• 2000

Geochemical and isotopic analyses were carried out to investigate hydrochemical characteristics, source of carbon species in the carbonated waters in South Korea. Most Korean carbonated waters from different geologic settings are characterized by a Ca-HCO$_3$type with a relatively low pH range from 5.3 to 6.3 (avg. 6.0). The concentrations of cations and anions in the carbonate waters are in the order of Ca$^{2＋}$>Na$^{＋}$>Mg$^{2＋}$>Si$^{4＋}$>Fe$^{2＋}$>K$^{＋}$ and HCO$_3$$^{－}$>SO$_4$$^{2－}$>Cl$^{－}$, respectively. The HCO$_3$$^{－}$ ion is more enriched in the carbonated water from the sedimentary rock and granitic rock of Mesozoic age in the Gyungsang basin(GII) and the Precambrian metamorphic rock and Jurassic granitic rocks of the Gyunggj massif in the Gangwon province(GⅠ) than those of the meta-sedimentary rock and granite in the Ogcheon zone(GⅢ). Based on the oxygen and hydrogen isotopic data, the carbonated waters are derived from the meteoric water, showing apparent latitude and altitude effects. The $delta$$^{13}$C values of carbon species in the carbonated water are in between -6.23 and 0.0 $textperthousand$, suggesting inorganic source of carbon originated from the carbonate mineral and carbonate rock in the aquifer.