• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2005.10a
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• pp.15-17
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• 2005

• Journal of Species Research
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• v.4 no.1
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• pp.1-22
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• 2015

Surveys of easily accessible or moderately remote South Korean mountains has revealed several common exotic and early species-complexes [Amynthas corticis (Kinberg, 1867) with A. diffringens (Baird, 1869), A. gracilis (Kinberg, 1867) and Metaphire californica (Kinberg, 1867)], plus an unexpected number of new native taxa. Megascolecid Metaphire muuido sp. nov. and lumbricid Eisenia muuido sp. nov. are newly described from Muuido Island, Incheon. Montane taxa are parthenogenetic Amynthas tokioensis oculo sub-sp. nov. that lacks male pores but is yet comparable to both Amynthas tokioensis (Beddard, 1892) and Metaphire soulensis (Kobayashi, 1938) with its possible new synonym A. chiakensis Hong & James, 2013. Apparently unique sympatric taxa are Amynthas bangtaesan bangtaesan and A. b. confinius sup-spp. nov., Amynthas centurio sp. nov., Amynthas punicans sp. nov., Amynthas seoraksan and A. seoraksan iti sub-spp. nov. These are newly described and their DNA COI gene barcodes, where obtainable, are presented in a phylogram with outgroup Acanthodrilidae Microscolex dubius (Fletcher, 1887) from Lake Biwa Japan being a new exotic record for Asia.

• Journal of Korean Society on Water Environment
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• v.27 no.5
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• pp.680-688
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• 2011

This study was performed to find out the distribution aspect of benthic macroinvertebrates according to altitude in a mountain stream (a main stream: Buk stream, a tributary: Hangye stream) of Seoraksan. The survey was conducted from August to November in 2010. All survey sites were very sound because the mountain was being maintained as a protection area of the national park. Water quality and the composition of substrata were similar in all sites. Benthic macroinvertebrates of 3 phyla, 4 classes, 9 orders and 84 species occurred in the stream. Along with the decline of altitude, shredders of the functional feeding groups (FFGs) decreased, while collector filterers increased. In particular, collector filterers increased sharply at the altitude of 600 ~ 500 m (S.E.L.). Benthic macroinvertebrates showed low similarity between the uppermost site and the lower sites. Altitude appeared to be a significant factor that influence the structure and distribution of benthic macroinvertebrate community.

• Korean Journal of Environment and Ecology
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• v.29 no.5
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• pp.710-717
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• 2015

This study was conducted investigate population size and habitat use for the conservation and management of the endangered long-tailed goral in the Seoraksan National Park using feces and camera trap during 2010 to 2014 (track survey, camera trap). As a result of feces tracking and camera trap, its population size was estimated as 160 (camera trap)~251 (feces) individuals in the Seoraksan National Park. The goral prefer $35^{\circ}{\sim}60^{\circ}$ (slope), 600~700m (elevation), NE (aspect), 0~50m (distance to stream), 300~600m (distance to road) and bread-leaved forest (forest type) according to field tracking of fecal. Based on field camera trap, we estimated the age classes of goral populations and activity of gorals during day-time (07-18 time, 56.5%) and night-time (18-07 time, 43.5%). Such analyses of population size and habitat use of the goral could be applied as important fundamental data for conservation of gorals and management of their habitats.

• Korean Journal of Environment and Ecology
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• v.28 no.2
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• pp.253-262
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• 2014

This study was conducted to find methods of qualitative landscape assessment for vegetational landscapes using ecological analysis. The study site was Seoraksan National Park in Korea. For this study, differing unique landscape resources were categorized and identified according to ecosystems. After identifying the study areas, the relationship between trail visitor preference and the amount of visible overexposure caused by people to the resources was examined. Landscape resources chosen for ecological analysis at Seoraksan National Park were subalpine vegetation community, high mountain rocks, ombrogenous deciduous broadleaf forest in the valley area, edaphic climax community, big tree community, flowering tree dominant community, autumnal tree dominant community and needle-leaf forest in the subalpine area. As a result of the study, it was found that the landscape resources with the highest correlation to visitor trail preference were big tree community area, flowering tree dominant community area, and needle-leaf forest in the subalpine area. As a result of overlapping the analysis of the amount of visible overexposure to the landscape resources and the analysis of preferential use of trails by visitors, guidance for the appropriate season for each trail can be provided. Since a positive correlation exists between certain sections of the natural landscapes and visitor preference, ecological impact on landscape resource ecosystems did not appear to cover wide areas of the trails, but was limited to certain areas preferred by visitors.

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2011.04a
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• pp.26-30
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• 2011

• Korean Journal of Plant Resources
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• v.25 no.3
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• pp.346-348
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• 2012

A new species of Chrysosplenium (Saxifragaceae), C. epigealum J.W.Han & S.H.Kang is described from Mt. Seoraksan, Inje-gun, Gangwon-do, Korea. This new species is distinct from C. flaviflorum Ohwi, its closely relative species, in having calyx 2-2.5 mm long, pistils slightly shorter than calyx, filaments 2-3 times longer than anthers and stolons epigeal.

• Korean Journal of Environment and Ecology
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• v.26 no.5
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• pp.827-834
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• 2012

The purpose of this study is to provide scientific data to support policy making on core area management in national parks, particularly to resolve conflict regarding trail closure, by analyzing the physical characteristics of trails in the Seoraksan and Songnisan National Park on the Baekdudaegan mountains. For the analysis, we surveyed 112 points selected from three sections and one section of closed trails in Seoraksan and Songnisan, respectively (17.1 km in total). The surveyed trails had, on average, trail width of 0.98m, baresoil width of 0.84 m, maximum erosion depth of 11.6cm, and trail slope of 14.2%. Of 53 out of 112 surveyed points (47.3%), we found exposed roots. Only 47 points (42.0%) did not show any type of physical deterioration. The magnitudes of deterioration in the surveyed closed-trail are relatively lower than those in open-trail in other national parks and are similar to those of ridge trails on the Baekdudaegan mountains.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.11 no.3
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• pp.28-38
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• 2008

The purpose of this study are to compare existing presence-absence predictive models and to predict suitable habitat for Goral (Nemorhaedus caudatus raddeanus) that is an endangered and protected species in Seoraksan national park using the best model among existing predictive models. The methods of this study are as follows. First, 375 location data and 9 environmental data layers were implemented to build a model. Secondly, 4 existing presence-absence models : Generalized Linear Model (GLM), Generalized Addictive Model (GAM), Classification and Regression Tree (CART), and Artificial Neural Network (ANN) were tested to predict the Goal habitat. Thirdly, ROC (Receiver Operating Characteristic) and Kappa statistics were used to calculate a model performance. Lastly, we verified models and created habitat suitability maps. The ROC AUC (Area Under the Curve) and Kappa values were 0.697/0.266 (GLM), 0.729/0.313 (GAM), 0.776/0.453 (CART), and 0.858/0.559 (ANN). Therefore, ANN was selected as the best model among 4 models. The models showed that elevation, slope, and distance to stream were the significant factors for Goal habitat. The ratio of predicted area of ANN using a threshold was 31.29%, but the area decreased when human effect was considered. We need to investigate the difference of various models to build a suitable wildlife habitat model under a given condition.

• Korean Journal of Environment and Ecology
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• v.20 no.1
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• pp.29-40
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• 2006

This study was conducted to obtain the fundamental data for the ecological management in the Pinus koraiensis natural forest in Seoraksan National Park. The community types of the P. koraiensis forest were divided into Ainsliaea acerifolia group and Rhododendron schlippenbachii group. A. acerifolia group was subdivided into Acer tschonoskii var. rubripes subgroup and Calamagrostis arundinacea subgroup. The importance value of major species showed higher value in the order like Pinus koraienses, Abies nephrolepis, Acer barbinerve, Betula ermani, Acer pseudo-sieboldianum, Sorbus commixta and Quercus mongolica. The value of species diversify ranged from 0.44 to 0.86, and showed stronger competition in the interspecific association than in the intraspecific one. The number of individuals of P. koraiensis below 10 centimeters in the 15 study sites was 35, and it was considered that the population of P. koraiensis could be succeeded to the other species in the present situation because of lower frequency in the low layer though the canopy of tree layer was dominated with P. koraiensis. The radial growth patterns of P. koraiensis individuals were mainly fluctuated for the entire life time, which was considered to be caused by frequent disturbance.