• Journal of the Korean Institute of Landscape Architecture
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• v.27 no.4
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• pp.87-93
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• 1999

This study is focus on exploring the relationship between the index of shape and the factor of perception. This study site is a Sorak National Park which sciences of road-landscape. Slides, which were used in the study, were taken in the Sorak National Park along the roads. For this purpose, the study used the questionnairy about the Road-landscape which was presented by a slide projection, also used th index of Shape. This research used analysis method of multi-regression between the preference and perceptional factors, and between the preference and index of shape. 1) The regression result of $R^2$ is 00827 between the preference and perceptional factors, therefore we can positively consider that the preference is related to the perception. The preference is affected highly by the intimacy which is the one of perceptional factors. 2) The regression result of $R^2$ is 0.692 between the preference and the index of shape. The preference has a relation with the index of shape, and it is affected highly by the index of sky. 3) Therefore, this study identifies the relationship between the preference and the perceptional factors, and the index of shape makes this relationship possible.

• Journal of the Korean Institute of Landscape Architecture
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• v.17 no.1
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• pp.69-79
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• 1989

^x Mt. Sorak national park trails are receiving high levels of use that is affecting user satisfaction and resource management. Trampling impacts studies were conduced in 2 courses to measure soil loss, extent of trail width, and vegetation change. Trail erosion were quantified using a cross -sectional area and most Portions were eroded severely in Oe - Sorak course especially. Phytosociological changes were also surveyed on trail - sides and controls by quadrat to confirm that trampling had an effect on the composition of the vegetation. Information from this study could be used directly in the planning, construction of new trails, and the maintenance of existing trails.

• Korean Journal of Environmental Biology
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• v.21 no.3
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• pp.251-256
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• 2003

Baseline data on the type, species and volume for dead trees were collected from old growth fir (Abies holophylla) forest in Sorak National Park. Though the survey was restricted to fly forest, a basic data compatible to those in other countries were collected. Besides fir, dead trees were also found in deciduous species. All the Known dead tree types were found. Average volume of dead tree in the surveyed area was 00.42 $\textrm{m}^2 \; ha^{-1}$. There seems no correlation existing between the distributions of dead tree and coarse woody debris (CWD).

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2004.04a
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• pp.196-198
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• 2004

• Journal of Environmental Impact Assessment
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• v.23 no.2
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• pp.119-136
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• 2014

This work aims to select the potentially vulnerable plant species against climate change at alpine and subalpine belts of Mts. Sorak, Jiri, and Halla, from central, southern, southern insular high mountains of the Korean Peninsula, respectively. The selection of global warming related vulnerable plants were performed by adapting various criteria, such as flora, endemicity, rarity, floristically specific and valuable species, species composition at mountain summits, horizontal and vertical ranges of individual species, and their distributional pattern in the Korean Peninsula. Line and quadrat field surveys along the major trails from all directions at height above 1,500 meters above sea level of Mts, Sorak, Jiri and Halla were conducted each year during spring, summer, and autumn from 2010 to 2011. Based upon above mentioned eight criteria, high level of climate change related potentially vulnerable arboral plants, such as Rhododendron aureum, Taxus caespitosa, Pinus pumila, Oplopanax elatus, Vaccinium uliginosum, and Thuja koraiensis are noticed from at subalpine belt of Mt. Sorak. Species of Abies koreana, Rhododendron tschonoskii, Oplopanax elatus, Taxus cuspidata, Picea jezoensis, and Juniperus chinensis var. sargentii belong to climate change concerned vulnerable species at subalpine belt of Mt. Jiri. High level of climate change related species vulnerability is found at alpine and subalpine belts of Mt. Halla from Diapensia lapponica var. obovata, Salix blinii, Empetrum nigrum var. japonicum, Vaccinium uliginosum, Juniperus chinensis var. sargentii, Taxus cuspidata, Rhamnus taquetii, Abies koreana, Hugeria japonica, Prunus buergeriana, and Berberis amurensis var. quelpartensis. Countermeasures to save the global warming vulnerable plants in situ are required.

• Korean Journal of Environment and Ecology
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• v.11 no.4
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• pp.523-534
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• 1998

Six trails of Naesorak(west Sorak) district of Soraksan National Park were selected to investigate the use impacts on environmental edterioration of trail according to the different amount of use. The entire width, and slope of trail as the trail condition surveyed at the total of 132 points were significantly varied with the amount of use. Major deterioration types of trail were rock-exposure, root-exposure, deepening and divergence in order of frequency. Deteriorated points were significantly different in trail conditions from non-deteriorated points, and these latter generally appeared at the lowed altituede than the former on each trail. Naesorak district still seemed to have poorer use-impacts than Oesarak(east sorak) district. The dominant species in upper layer of trail edge vegetation differed from trail to trail, but in shrub layer Lespedeza maximowiczii, lindera obutsiloba for valley trail and Rhododendron schlipenbavhii for slope trail. The species diversity and coverage of shrub layer in trail edge were the highest on the Ose'am trail and each trail was dissimilar in species composition of shrub layer of edge vegetation.

• Journal of the Korea Furniture Society
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• v.23 no.4
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• pp.479-484
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• 2012

Tree-ring dating can be used to date scientifically prehistoric timbers, historical buildings or woodcrafts. It gives a calendar year to each tree ring and produces the felling dates of logs or wood panels. In this study, we applied tree-ring dating to a medicine cabinet in Seoul Museum of History. We obtained tree-ring data from radial or cross section by taking photographs with a digital camera. The cabinet were dated A.D. 1821 to the last ring. It was about 50 year older than the previous medicine cabinets. Tree-ring patterns indicated that the origin of woods for the cabinet would be near Sorak mountains.

• The Korean Journal of Ecology
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• v.22 no.6
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• pp.355-361
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• 1999

Distribution of size class, population regeneration and changes in the population structure of Quercus mongolica were studied from 1994 to 1999 in Mt. Jumbong (128°27' E, 38° 04' N) of Mt. Sorak National Park and Biosphere Reserve in central Korea. Three 20m × 20m permanent quadrats were set up at the elevation of 900m. The vegetation of the study site was dominated by Quercus mongolica and Acer pseudosieboldianum, but little change was observed in the community structure from 1995 to 1999. Most mortality in the study site was observed in small trees of A. pseudosieboldianum and Tilia amurensis. Mean annual growth in dbh (diameter of breast height) of Q. mongolica for 4 years was only 0.09cm, and no ingrowth of saplings (dbh < 2.5cm) into tree class was observed during the study period. Among the 21 Q. mongolica trees studied in the permanent quadrats. all the smaller trees (dbh < 30cm) were established in 1920 ∼ 1950, while many bigger trees (with 40cm < dbh < 80cm) were established in 1750 ∼ 1800, indicating that its establishment was episodic. Distribution of dbh classes among Q. mongolica trees shows that smaller trees were poorly represented, and no saplings of Q. mongolica occurred in the permanent quadrats studied, indicating that currently Q. mongolica is not regenerating well in the study site. Total seed production of Q. mongolica in 1994 was estimated as 88 acorns per square meter in the study site. Rate of predation including caching of acorns was highest in 1994, then declined sharply thereafter. Most of the acorns which managed to survive in the first year were predated in the second year, and only 5% of the acorns produced in 1994 survived into the third year. No seeds produced in 1994 or seedlings germinated from them succeeded to survive to 5 years after seed production. However, seedling emergence rate and seedling survival were high in the early growing season in 1995. These results suggest that predation can be a significant factor in the regeneration of Q. mongolica. and that Q. mongolica is not regenerating well in Mt. Jumbong and needs large scale disturbances for its new recruitment.

• Mycobiology
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• v.45 no.4
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• pp.270-285
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• 2017

The crustose lichen genus Pertusaria comprises over ca. 800 species worldwide. In total, 20 Pertusaria species were localized to the Mt. Sorak and Jeju-do in Korea. To date, information regarding the distribution of Pertusaria species in the South Korean peninsula is scarce. In this study, we collected Pertusaria species across South Korea and identified them based on morphological, chemical, and molecular characteristics. Of the 387 samples collected, we identified 24 taxa and 1 variety, of which 17 were previously recorded, and 6 taxa were newly found in South Korea (P. leioplaca, P. leucosora var. violascens, P. texana, P. thiospoda, P. thwaitesii, and P. xanthodes), 2 known species were transferred to Varicellaria (Varicellaria lactea and V. velata), one species was transferred to Variolaria as a new record (Variolaria multipunctoides) and one was a new species (P. jogyeensis J. S. Park & J.-S. Hur, sp. nov.). Characteristics of the newly discovered species, P. jogyeensis, are as follows: smooth to bumpy thallus, scattered to crowded poriform apothecia, blackish ostioles, definitely sunken, thin yellowish green rims around ostioles, 8-spored ascus, and the presence of perlatolic acid and thiophaninic acid (chlorinated xanthone). Phylogenetic studies on P. jogyeensis based on the mitochondrial small subunit sequence revealed proximity to P. flavicans and P. texana, and supported its classification as a new species within the genus Pertusaria. Additionally, we describe the chemical composition and morphology of all listed species in detail and provide an artificial key for identification.

• Journal of Environmental Science International
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• v.14 no.5
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• pp.457-461
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• 2005

The survey of user's satisfactory degree of location, plantings, facilities, operation, and management factors on national parks' camp sites was carried out. Many problems were analyzed and identified. This survey was for proposing the correct way to plan and draft for camping site after this. In addition to, the realization of environmental education through nature friendly recreation was aimed at. According to the result of the survey, the followings were suggested as necessities to improve the camp site. 1. Repair and replacement of insufficiently managed facilities should be aimed at. 2. Facilities for a handicapped person should be preferentially introduced. 3. Active management and publicity in low-demand season that practiced by developed countries should be carried out. Seasonal program for various age groups should be operated. 4. Surrounding tourist site, camp site, and trail should be organically connected by shuttle bus and other transports. A survey was carried out for the user satisfaction in the campsites of national parks. Based on this survey concerned with the location, planting, facilities, operation and management, the problems were identified and analysed to improve future design and plan of the campsites. This study aims for the realization of environmental education through nature friendly recreation. The following points are suggested as needed according to the survey result. 1. damaged facilities should be repaired or replaced. 2. introduction of the facilities for disabled should be prioritized. 3. consistent and active management and publicity work should be operated in the off-peak season. and the seasonal activity programs for the various age groups should be provided. 4. the site should be well connected with other surrounding campsites and tourist sites using the shuttle bus and other transport method.