• Title/Summary/Keyword: 자연 지역

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Monitoring of Landslide in Kangwondo Area using 2-Pass DInSAR Technique (2-Pass DInSAR 기술을 활용한 강원도 지역 산사태 탐측)

  • Yoo, Su Hong;Sohn, Hong Gyoo;Jung, Jae Hoon;Choi, Si Kyong
    • Journal of Korean Society of societal Security
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    • v.2 no.2
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    • pp.85-90
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    • 2009
  • In recent days, climatic change cause abnormal weather all over the world and we have a great loss of life and property every year. In Korea, we suffer from landslide problem because large regions of Korea Peninsula are composed of mountain. In order to detect rapidly and to take follow-up measures of disaster, the remote sensing is being used actively as conventional field survey has many restrictions in accessibility because of more time and man power requirement. In additions interferometric SAR is one of the techniques that have our attention because it can provide many kinds of accurate surface information without restriction of atmospheric and ground conditions by using L-band. In this study, we aimed to monitor the displacement of mountain area in Kangwondo and this results will be used for detecting landslide. Also we build the web system for detecting and analyzing the landslide.

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Evaluation of Vegetation Adaptability to Climate Change on the Korean Peninsula using Forest Moving Velocity (삼림의 이동속도를 고려한 한반도 자연 식생의 기후변화 적응성 평가)

  • Jung, Hui-Cheul;Jeon, Seong-Woo;Lee, Dong-Kun;Matsuoka, Yuzuru
    • Journal of Environmental Impact Assessment
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    • v.12 no.5
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    • pp.383-393
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    • 2003
  • IPCC(Intergovernmental Panel on Climate Change)는 향후 100년 동안 지구의 평균기온이 $1^{\circ}C$에서 $3.5^{\circ}C$ 상승할 경우, 각 기후대가 극방향으로 약 150~550km 이동할 것으로 예측하고 있으나, 과거 기후변동 연구결과들은 삼림의 이동속도를 100년간 4~200km로 추정하고 있어 식생이 기후대의 이동을 따라가지 못하여 사멸되는 지역이 발생할 것으로 예측되고 있다. 약 960km의 남북으로 긴 지형적 특성을 가진 한반도 역시 이러한 영향을 벗어나지 못할 것으로 예측되고 있어 기존의 기후변화 시나리오와 함께 삼림의 이동성을 고려한 영향연구가 요구된다. 본 연구는 IPCC의 새로운 기후변화 시나리오인 SRES 시나리오의 대기대순환모형(Global Climate Model, GCM) 결과와 AIM(Asia Integrated Model)/Impact[Korea] 모형을 이용하여 제작된 Holdridge 생물기후분류의 연구성과를 이용하여, CO2농도 배증시의 한반도지역의 자연식생 영향과 적응 가능성을 삼림의 이동성을 고려하여 평가하였다. 삼림의 이동속도를 0.25, 0.5, 1.0, 2.0(km/yr)로 변화시키며 2100년 한반도 자연식생의 기후 변화 영향을 평가한 결과, (1) 목본식물의 이동속도가 년간 1km 이상일 경우 삼림 피해가 미미하게 나타났으나 (2) 이동이 느린 0.25km/yr의 경우, 생육위험지역을 포함한 시나리오별 전체 피해규모는 A2(17.47%), A1(9.97%), B1(6.21%), B2(5.08%) 순으로 나타났으며, 삼림소멸의 경우는 A2, B2 시나리오에서 발생하며 A2 시나리오에서 한반도의 약 2.1%로 가장 크게 발생하였다. (3) 전반적인 생육위험 지역의 분포는 함흥만, 영흥만의 동해안지역에 집중되었으며, A2 시나리오의 극단적 소멸예상지역은 금오산, 가야산, 팔공산을 연결하는 지역에서 발생하는 것으로 나타났다.

Mammalian Fauna in DMZ Area (DMZ 및 군사접경지역의 포유류상)

  • Yoon, Seong-Il;Gyu, Myung-Chan;Lee, Heung-Shik S.
    • Korean Journal of Environmental Biology
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    • v.25 no.3
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    • pp.215-222
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    • 2007
  • DMZ (De-Militalized Zone) in South Korea is world heritage area by passage control of human-being for more than 50 years since 1953. Wild flora and fauna in these area have been protected from any development and/or habitat destruction. However, consideration on ecosystem and nature in the area is becoming higher, and demand for development is raising also. We have reviewed any publications, which are surveyed about ecosystem and interview local residents about wildlife inherit there. Totally 51 species have been reported inhabited DMZ belonging to 17 Families, 6 Orders, so far. National monuments in DMZ are following; Asiatic black bear (Ursus thibetanus), Eurasian otter (Lutra lutra), Musk deer (Moschus moschiferus), KOREAN goral (Nemorhaedus caudatus), flying squirrel (Pteromys volans) and spotted seal (Phoca vitalima). These results would be an essential data to establish management strategy and manuals for conserving native ecosystem, native flora and fauna in DMZ, and also using for registering world heritage area under UNESCO.

An Analysis of Relationship between Motivation and Satisfaction of Visitors at Cheongnamdae (청남대 방문객 집단별 동기와 만족도 간 관계 분석)

  • Seong, Bo-Hyun;Choi, Young-Seok
    • Korean Journal of Environment and Ecology
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    • v.33 no.4
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    • pp.462-471
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    • 2019
  • The purpose of this study is to analyze the difference between local residents and tourist groups in the relationship between the motivation for visiting and the satisfaction of Chung Nam Dae which is the leading tourist attraction in the Chungbuk region. We obtained 200 validated samples each of the local residents in Chungcheongbuk-do Province and the tourists from outside of Chungcheongbuk-do Province with experience of visiting Cheongnamdae through the survey using the questionnaire organized through literature research. The analysis result showed that the relationship between motivation and satisfaction varied depending on the overall sample, local residents, and tourist and that the natural relaxation and convenience had a positive impact on satisfaction in all groups. There was a difference in the influence between motivation and satisfaction between the two groups. Four motivational factors, including natural relaxation, convenience, historicity, and relationship had the significant influence on satisfaction for the local residents while two motivational factors, including natural relaxation and convenience, had the significant influence on satisfaction for the tourists. Based on the results of the study, we presented the theoretical and practical implications and suggested follow-up studies.

A Study on Environmental Damage due to Typhoons in Downstream Area of Abandoned Mine (태풍으로 인한 폐광산 하류 지역에서 환경피해 연구)

  • Cho, SungHyen;Lee, Dongguen;Lee, Goontaek;Kwon, Ohkyung;Kim, Tae Seung
    • Journal of the Korean earth science society
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    • v.43 no.1
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    • pp.119-127
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    • 2022
  • In recent years, the intensity of typhoons has increased due to climate change. It is presumed that the tailings and waste rock in the mining area harm the environment owing to flood damage. The Gangneung area has been affected by the largest typhoons in Korea, including No. 3,693 (1936), Rusa (2002), Maemi (2003), and Megi (2004). This study was based on a case in which high concentrations of arsenic were detected in the surroundings along a stream after floods caused by typhoons. Although the environmental damage-related law clarifies the responsibility of polluters, careful implementation is required in potential natural disaster areas. The pollutants from abandoned mines can be widely exposed due to typhoons as artificial causes may be mixed. To minimize the impact of natural disasters in these areas, it is necessary to improve and link relevant laws. This study is expected to help cope with mixed pollutants in downstream areas.

A Study on the Classification of Landscape Unit and Viewshed Analysis Using GIS and MESH Method (GIS와 MESH 법에 의한 경관단위 구분 및 가시권 분석에 관한 연구)

  • 배중남
    • Korean Journal of Environment and Ecology
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    • v.11 no.3
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    • pp.326-333
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    • 1997
  • 본 연구는 일본 하코네지구의 경관특성을 파악하고, 지역 내에 건축물이 건설될 경우 조망경관에 미치는 영향의 정도를 평가하는데 그 목적이 있다. 이를 위해, 경사와 토지이용상태를 조사하였으며 이를 GIS와 MESH 분석을 통하여 11개의 경관타입으로 구분하였다. 한편, 건축물이 경관에 미치는 여향의 정도는 Y=0.47X+32.652(Y는 자연성의 평가치, X는 시거리, $R^{2}$는 0.877)의 회귀식으로 나타낼 수 있으며, 조사지역에서 건축물의 신축이 지역경관에 미치는 영향의 정도를 예측하였다. 이러한 연구결과는 체계적인 경관관리를 위한 자료와 지표로 활용될 수 있을 것이다.

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A Review on the Public Appeals of the Ecosystem and Nature Map (생태·자연도의 관·민원 현황에 대한 고찰)

  • Ahn, Kyunghwan;Shin, Youngkyu;Kim, Jiyeon;Lee, Yeoulkyung;Lim, Jeongcheol;Ha, Jeongwook;Kwon, Hyuksoo;Suh, Jaehwa;Kim, Myungjin
    • Journal of Environmental Impact Assessment
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    • v.24 no.1
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    • pp.99-109
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    • 2015
  • The Ecosystem and Nature Map (ENM) is basic map for current status of natural resources. The map has been offered information to ecological conservation and restoration, as well as to land use planning and policy making. The map composed of 794 sheets in 1:25,000 scale classifies total areas into three grade zones (1st, 2nd and 3rd grade zones) and separately managed zone. In 2005, the first draft Ecosystem and Nature Map was prepared by the second National Ecosystem Survey. It was opened for the people to search and appeal. So 1,419 cases of public appeals on the first draft Ecosystem and Nature Map were submitted in 2005. After partial revision, the first Ecosystem and Nature Map was announced in 2007. The second draft Ecosystem and Nature Map was prepared by the third National Ecosystem Survey and opened to public in 2012. As a result, 1,263 cases of public appeals were submitted in 2012. Since the first announcement of the Ecosystem and Nature Map in April 2007, 182 cases of public appeals on the Map were submitted until December 2013. Among them, 159 cases were announced with revision. According to the first Ecosystem and Nature Map announced in 2007, graded areas covered 7.5% in the 1st grade zone, 39.2% in the 2nd grade zone and 44.7% in the 3rd grade zone of the national land area, respectively. In the second draft Ecosystem and Nature Map in 2012, areas of the 1st grade zone and the 2nd grade zone were 9.2% increased 1.7 percentage points and 45.5% increased 6.3 percentage points, and areas of the 3rd grade zone were 36.6% decreased 8.1 percentage points. Among areas of the 1st grade zone, Gangwondo occupies 54.3% in 2007 and 47.6% in 2012. Gangwondo consists of the highest percentage of the 1st grade zone and the smallest of the 3rd grade zone. Seoul has the highest percentage of the 3rd grade zone. There were the highest increase of the 1st grade zone in Gyeongsangbukdo and the highest decrease in Jeollabukdo and Seoul. Vegetation is the most important evaluation factor to determine the grade of the Ecosystem and Nature Map.

Development of the mapping method for Urban Ecological Map for Seoul ' using Natural Environment Management GIS (자연환경관리 GIS를 이용한 서울시 생태.자연도 작성연구)

  • 김윤종;조용현;김경민
    • Spatial Information Research
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    • v.8 no.1
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    • pp.51-67
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    • 2000
  • This was preliminary research to develop the mapping method for the Urban Ecological Map. This research provided preliminary evaluation model for ecological conservation. The model was applied to Mt. Kwanak in Seoul, and the Urban Ecological Map was produced and tested. The results are as follows. First, some problems were found in the legal Ecological Map ; insufficient and only qualitative criteria for evaluation of the conservation value in an urban area, and exclusion of the areas designated by other was laws. Secondly, in order to improve the evaluation criteria for Ecological Map, some missed sites should be added to the legal list of valuable sites. Those are needed for ecological restoration, conservation of wildlife habitats managed by a city government , and establishment of eco-corridor. Third, the efficient mapping process for Urban Ecological Map must have two steps. On the first step an ecological evaluation should be done based on pure conservation value. On the second one the Ecological Map for legal action control should be made. And the Analytic Hierachy Process is considered as a Helpful technique for improving the objectivity of evaluation model. Fourth, the legal action control system for Urban Ecological Map should be reviewed.

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A Study on the Effect Analysis for the Regeneration Project for the Zones Vulnerable to Natural Disaster using Structural Equation Model (구조방정식 모형을 이용한 자연재해위험지구 정비사업 효과 분석)

  • Lee, Kyung Su;Jung, Jae Kwang;Heo, Bo Young;Byeon, Seong Joon
    • Journal of Korea Water Resources Association
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    • v.46 no.8
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    • pp.843-855
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    • 2013
  • In the modern society with high science and technological level, many people have been tried to mitigate natural disaster. The disaster was so huge that we made special service organization which deal with 'The Natural Disaster Endangered Districts'. But the analysis of the organization's works was inadequate. In order to analyze their regeneration project, this study selected analysis area and did a spot survey. We did validity, reliability tests and statistical data analysis of this survey. We also did reliability analysis of this policy using Structural Equation Model. According to the result, there is a reasonable suitability in 'The Natural Disaster Repair work Policy'. And it also improved spiritual, substantial environment of the surrounding people. The people formed positive awareness about Government Repairing Policy. This 'Natural Disaster Repair work Policy' is essential to improve and develop local community. Therefore it will affect democratic development of society.

A Study on the Ecosystem Conservation based on Natural Environment Investigation of Jinhae Area Troops (진해지역부대 자연환경조사를 통한 생태계 보전에 관한 연구)

  • Jang, Cheol-Hyeon;Yu, Jong-Ho
    • Journal of Korean Society of Environmental Engineers
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    • v.36 no.11
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    • pp.733-738
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    • 2014
  • Within the scope that does not interfere with the performance of basic duty, the military has been actively supporting the national policy for the conservation of the natural environment in accordance with the "military environmental protection guidelines". Since there is a lack of information regarding inhabitation for wild fauna and flora, field investigations of the natural environment at Jinhae local unit were performed three times in 2003. As a result of the investigation, lycoris sanguinea as flora, marten, otter, and leopard cat as mammalia, and accipiter soloensis, accipiter gentilis schvedow, accipiter gularis, buteo hemilasius, falco tinnunculus and terpsiphone atrocaudata as bird were confirmed to inhabit. For the conservation of the natural ecosystem, the expansion of research for natural ecosystems within the military unit is required. Additionally, environmental pollution can be prevented through the proper maintenance of basic environmental facilities including sewage treatment facilities, soil pollution control facilities, and waste storage facilities. In cooperation with local governments and private organizations, the natural cleansing action and sustainable wildlife conservation should be expanded.