• Title/Summary/Keyword: Resources of the Area

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Geological Values of Seonangbawi Area as A Geological Field Course Site (야외지질학습장으로써 서낭바위 일대의 지질학적 가치)

  • Kil, Youngwoo;Choi, Don Won;Cong, Nguyen The;Jung, Woochul;Jo, Yunsoo;Jung, Yeojin
    • Journal of the Korean earth science society
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    • v.39 no.2
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    • pp.164-177
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    • 2018
  • Even though various geological attractions are distributed domestically, the geological attractions are rarely utilized as field course site. The purpose of this study is to make Seonangbawi area as the field course site after geological investigations are carried out in detail. Seonangbawi is located about 1km southeast from Songjiho beach in Gangwon-do. Seonangbawi area is simply composed of Cretaceous Seokcho granite with the overlay of Quaternary alluvium. Geological field course in the Seonangbawi area will be useful to the student and citizen for developing the knowledge of geological phenomena, such as the formation of granite and minerals, and weathering process. In addition, the student and citizen can develop the knowledge of the geological structures, such as joint (N50E/80NW, N40W/84SW), fault (N42W/83SW), foliation (N32E/54SE), and dyke (N35E/40SE, N26W/63SW), and geographical features, such as tor, taforni, groove, and gnamma in the field. Accordingly, the Seonangbawi area is the best place to learn various geological and geographical phenomena and to discuss the origin of Seonangbawi with limited space.

Differences in Small Rodent Populations between Forest and Forest Road Areas (임도 미개설지와 개설지에서 소형 설치류의 개체군 특성 차이)

  • Rhim, Shin-Jae;Lee, Ju-Young;Kim, Min-Jin;Park, Sung-Jin;Lee, Eun-Jae;Lee, Woo-Shin
    • Journal of Korean Society of Forest Science
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    • v.96 no.3
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    • pp.245-250
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    • 2007
  • This study was conducted to clarify the differences in small rodents characteristics of populations between forest and forest road area in deciduous forest, Jincheon, Chungbuk province, Korea. Value of understory coverage and number of small trees (<10 cm DBH) were higher and value of canopy coverage was lower in forest road area than in forest area. Size of home range of Apodemus peninsulae was larger and number of captured individuals was less in forest area. Also, mean body weight and number of captured individuals of A. agrarius were higher in forest road area. There were differences in captured number of individuals in each distance from the center of planned road route or forest road in both areas. Forest road would be influenced on individuals, species composition, and habitat using pattern of small rodents.

Characteristics of the Cut Slopes located in Mt. Jang Area, Busan (부산 장산지역에 분포한 절개사면의 특성)

  • Song, Young-Suk;Kim, Kyeong-Su;Cho, Yong-Chan;Lee, Choon-Oh;Chae, Byung-Gon
    • Journal of the Korean Geosynthetics Society
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    • v.12 no.3
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    • pp.65-73
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    • 2013
  • The information of cut slope in Mt. Jang area, Busan is investigated in order to construct the Slope Management System in Urban Area. The slope inspection sheet is made to record the characteristics for cut slopes, and that is capable to be inputted slope information systematically. The cut slopes in Mt. Jang area are consisting of 69 slopes. Most of the cut slopes are constructed in cutting slope and retaining wall (CR). The cut slopes located in housing facilities are 46 slopes, and the slopes located in school facilities are 12 slopes. The traverse of cut slopes is mainly ranged from 50 m to 150 m, and the height is mainly ranged from 10 m to 20 m. The slopes combined with soil and rock are mostly distributed. The retaining wall was installed in the toe part of cut slope in order to increase the slope stability, and the additional reinforcement methods including the anchor, drainage, preventing rock fall, shotcrete and vegetation were installed at the toe part of cut slopes.

Engineering Characteristics of Soil Slopes Dependent on Geology - Hwangryeong Mt. District, Busan - (지질에 따른 토층사면의 토질공학적 특성 -부산 황령산지역-)

  • Kim Kyeong-Su;Lee Moon-Se;Cho Yong-Chan;Chae Byung-Gon;Lee Choon-Oh
    • The Journal of Engineering Geology
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    • v.14 no.4 s.41
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    • pp.487-498
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    • 2004
  • There is an increasing trend of construction works in mountainous areas by the urban development in Busan that is mainly composed of mountains. The study area, Hwangryeong Mt., is one of developing sites in the urban area, too. Landslides and cut-slope failures that occur large damages of human beings and the properties are influenced by soil characteristics as well as rock properties. This study analyzed geotechnical characteristics of soil dependent on geology at Hwangryeong Mt. where a large slope failure had been occurred in 1999. Geology of the study area is composed of the Cretaceous sedimentary rocks and volcanic rocks. Soil layer of the slopes can be grouped into sand mixed with clay and silt. The cohesion is plotted between $0.001\;and\;0.066kg/cm^2$. The friction angles are distributed in the ranges between $32^{\circ}\;and\;39^{\circ}$, meaning soil bearing a high friction angle. The permeability coefficients are plotted between $2.34\times10^{-4}cm/sec\;and\;2.58\times10^{-2}cm/sec$, indicating fine sand and loose silt with a medium grade of permeability. The sedimentary rocks area shows relatively higher permeability coefficients than those volcanic rocks area.

A Study on the Interpretation of Cultural Landscape Value - Focusing on Urban-rural Complex Area, Gwangsan-gu - (광산지역 문화경관자원의 가치 해석에 관한 연구 - 도농복합지역을 중심으로-)

  • Park, Ik Soo
    • Journal of the Korean Institute of Rural Architecture
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    • v.14 no.4
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    • pp.125-133
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    • 2012
  • This study intended to interpretate the current value of the cultural landscape resources in Gwansan region, Gwangju-si. The 35 significant cultural landscape resources in Gwangsan region appear education, people in history, living residence, religion & belief, distribution of cultural site, tomb, industry, topographic scenery characteristics. They are classified such as 22 traditional landscape resources, 7 modern landscape resources, 6 natural landscape resources. The significant cultural landscape resources were evaluated by value items of 4 natural landscape, 4 social, and 5 cultural. As a result of value evaluation on the cultural landscape resources in Gwangsan region, the highest value were appeared on the cultural items, while the lowest value were appeared on the social items. And high evaluation were appeared on regional identity, cultural preservation, regional monumentality, visibility, while low evaluation were appeared on unique naturality and connectivity of assets.

Schemes for the Environmentally Sound and Sustainable Development of Groundwater Resources (지하수자원의 환경적으로 지속가능한 개발 방안)

  • Hong, Sang-Pyo;Kim, Jung-Wuk
    • Journal of Environmental Impact Assessment
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    • v.5 no.2
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    • pp.49-57
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    • 1996
  • On the basis of sustainable long-term water resources planning, the development of ground water resources should be interlocked with the surface water development In considering the intertemporal equity, overpumping of groundwater may diminish or eliminate the groundwater resources stock of post-generations. Regulatory landuse zoning for groundwater resources recharge area is indispensable measures to prevent groundwater pollution. Adequate treatment of polluted water from various sources such as municipal sewage, industrial wastewater, landfill site leachate, and abandoned boring wells, is also necessary for groundwater protection. To preserve groundwater resources as common property goods, groundwater use tax should be imposed upon the large scale groundwater use. Finally, the establishment of groundwater development license system is recommended to achieve the social optimal production and to avoid external diseconomy.

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Nutrient Behavior at Paddy Field Area with Large-Scaled Plots during Irrigation Periods (관개기 대구획 광역논에서의 영양물질 거동)

  • Oh, Seung-Young;Kim, Jin-Soo;Jung, Gu-Young
    • Proceedings of the Korea Water Resources Association Conference
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    • 2005.05b
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    • pp.1254-1258
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    • 2005
  • Net outflow flux and unit load of pollutants were investigated at a paddy fields area(Soro-ri) with large-scaled plots on loam soil during irrigation seasons of $2001\~2003$. Water samples were collected, and inflow and outflow were .measured at $5\~10$ day intervals during non-storm periods and at $2\~6$ hours intervals during storm events. The average concentration of TP in percolated water was much smaller than that in irrigation and surface outflow water likely due to phosphorus absorption capacity of paddy soils. Net outflow flux in study area was significantly correlated with rainfall and surface outflow discharge. Nutrient flux from Paddy fields can be abated by reduction in outflow surface discharge.

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Community Structure and Distribution Pattern of the Pleuronectiform Fishes in the Uljin Marine Ranching Area, Korea (울진바다목장에서 어획된 가자미목(Pleuronectiformes) 어류의 군집구조 및 공간분포)

  • Yoon, Byoung Sun;Park, Jeong-Ho;Sohn, Myong Ho;Yang, Jae Hyeong;Yoon, Sang Chul;Choi, Young Min
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.46 no.4
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    • pp.413-423
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    • 2013
  • To elucidate the variation of species composition, biomass and length distribution of flatfishes by the period and region in the Uljin marine ranching area, bottom trawl survey was investigated at the six stations from Feb. 2008 to Dec. 2010. During the survey period, a total 4 families 17 species in the Pleuronectiformes, average 69,158 $ind./km^2$ and 5,625 $kg/km^2$ were identified, in 2008 appeared in 14 species, average 25,798 $ind./km^2$ and 2,333 $kg/km^2$ and in 2009 appeared in 13 species, average 102,360 $ind./km^2$ and 5,634 $kg/km^2$ and in 2010 appeared in 14 species, average 75,704 $ind./km^2$ and 8,632 $kg/km^2$. The individual dominant species, occupying over 10% of total individuals, was Pleuronectes herzensteini (20,811 ind., 30.0%), Hippoglossoides pinetorum (18,666 ind., 26.9%) and Glyptocephalus stelleri (13,499 ind., 19.4%) also the biomass dominant species, occuping over 10% of total biomass, was P. herzensteini (2,207 kg, 39.3%), Pleuronectes yokohamae (857 kg, 15.3%), H. pinetorum (761 kg, 13.5%), Kareius bicoloratus (677 kg, 12.1%). From the cluster and MDS analysis based on Bray-Curtis similarity matrix of fourth root transformed data of species number and individuals in the Uljin marine ranching area from Feb. 2008 to Dec. 2010 was divided into two different groups of the flatfishes community in 2008 and from Jan. to Apr. in 2009 and 2010 (Group A) and the pleuronectiform community in from May to Dec. in 2009 and 2010 (Group B). From the cluster and MDS analysis using the similarity of demersal organisms community among six stations, the Uljin marine ranching area was divided into two different groups of Group 1 (St. 1 and St. 3) and Group 2 (St. 2, St. 4, St. 5 and St. 6).