• Title/Summary/Keyword: Korea national park

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Prediction of changes in distribution area of Scopura laminate in response to climate changes of the Odaesan National Park of South Korea

  • Kwon, Soon Jik;Kim, Tae Geun;Park, Youngjun;Kwon, Ohseok;Cho, Youngho
    • Journal of Ecology and Environment
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    • v.38 no.4
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    • pp.529-536
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    • 2015
  • This study was performed to provide important basic data for the preservation and management of Scopura laminata, a species endemic to Korea, by elucidating the spatial characteristics of its present, potential, and future distribution areas. Currently, this species is found in the Odaesan National Park area of South Korea and has been known to be restricted in its habitat due to its poor mobility, as even fully grown insects do not have wings. Utilizing the MaxEnt model, 20 collection points around Odaesan National Park were assessed to analyze and predict spatial distribution characteristics. The precision of the MaxEnt model was excellent, with an AUC value of 0.833. Variables affecting the potential distribution area of S. laminata by more than 10% included the range of annual temperature, seasonality of precipitation, and precipitation of the driest quarter, in order of greatest to least impact. Compared to the current potential distribution area, no significant difference in the overall habitable area was predicted for the 2050s or 2070s. It was, however, demonstrated that the potential habitable area would be reduced in the 2050s by up to 270.3 km from the current area of 403.9 km; further, no potential habitable area was anticipated by the 2070s according to our predictive model. Taken together, it is anticipated that this endemic species could be significantly affected by climate changes, and hence effective countermeasures are strongly warranted for the preservation of habitats and species management.

Storage Benchmarking System Using NoSQL Database Engines (NoSQL 데이터베이스 엔진을 이용한 스토리지 벤치마킹 시스템)

  • Choi, do-jin;Park, soo-bin;Park, song-hee;Baek, yeon-hee;Shin, bo-kyoung;Choi, jae-yong;Park, jae-yeol;Lim, jong-tae;Bok, kyoung-soo;Yoo, jae-soo
    • Proceedings of the Korea Contents Association Conference
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    • 2019.05a
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    • pp.445-446
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    • 2019
  • 빅데이터 시대의 도래로 다양한 NoSQL 데이터베이스 엔진이 활용되고 있다. NoSQL 데이터베이스 엔진 기반의 다양한 응용들이 수행될 때 스토리지의 성능을 평가하기 위한 스토리지 벤치마킹 툴이 요구된다. 본 논문에서는 NoSQL 데이터베이스를 이용한 스토리지 벤치마킹 시스템을 설계한다. 제안하는 스토리지 벤치마킹 시스템은 IO 추적기를 통해 스토리지의 성능을 측정하고, 웹 UI를 통해 사용자 정의 워크로드 생성, 벤치마킹 실행, 결과 확인을 수행할 수 있다.

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Evaluation on Climate Change Vulnerability of Korea National Parks (국립공원의 기후변화 취약성 평가)

  • Kim, Chong-Chun;Kim, Tae-Geun
    • Korean Journal of Ecology and Environment
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    • v.49 no.1
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    • pp.42-50
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    • 2016
  • The purpose of this study is to set the direction to manage national parks to cope with climate change, and offer basic data to establish the relevant policies. Towards this end, this study analyzed the current and future climate change vulnerability of national parks using the 24 proxy variables of vulnerability in the LCCGIS program, a tool to evaluate climate change vulnerability developed by the National Institute of Environmental Research. To analyze and evaluate the current status of and future prospect on climate change vulnerability of national parks, the proxy variable value of climate exposure was calculated by making a GIS spatial thematic map with $1km{\times}1km$ grid unit through the application of climate change scenario (RCP8.5). The values of proxy variables of sensitivity and adaptation capability were calculated using the basic statistics of national parks. The values of three vulnerability evaluation items were calculated regarding the present (2010s) and future (2050s). The current values were applied to the future equally under the assumption that the current state of the proxy variables related to sensitivity and adaptation capability without a future prediction scenario continues. Seoraksan, Odaesan, Jirisan and Chiaksan National Parks are relatively bigger in terms of the current (2010s) climate exposure. The national park, where the variation of heat wave is the biggest is Wolchulsan National Park. The biggest variation of drought occurs to Gyeryongsan National Park, and Woraksan National Park has the biggest variation of heavy rain. Concerning the climate change sensitivity of national parks, Jirisan National Park is the most sensitive, and adaptation capability is evaluated to be the highest. Gayasan National Park's sensitivity is the lowest, and Chiaksan National Park is the lowest in adaptation capability. As for climate change vulnerability, Seoraksan, Odaesan, Chiaksan and Deogyusan National Parks and Hallyeohaesang National Park are evaluated as high at the current period. The national parks, where future vulnerability change is projected to be the biggest, are Jirisan, Woraksan, Chiaksan and Sobaeksan National Parks in the order. Because such items evaluating the climate change vulnerability of national parks as climate exposure, sensitivity and adaptation capability show relative differences according to national parks' local climate environment, it will be necessary to devise the adaptation measures reflecting the local climate environmental characteristics of national parks, rather than establishing uniform adaptation measures targeting all national parks. The results of this study that evaluated climate change vulnerability using climate exposure, sensitivity and adaptation capability targeting Korea's national parks are expected to be used as basic data for the establishment of measures to adapt to climate change in consideration of national parks' local climate environmental characteristics. However, this study analyzed using only the proxy variables presented by LCCGIS program under the situation that few studies on the evaluation of climate change vulnerability of national parks are found, and therefore this study may not reflect overall national parks' environment properly. A further study on setting weights together with an objective review on more proper proxy variables needs to be carried out in order to evaluate the climate change vulnerability of national parks.

The Evaluation of Socio-Psychological Carrying Capacity based on Marginal Utility Theory Model : The Case Study of Bukhansan National Park (한계효용이론 모델을 이용한 북한산국립공원 사회.심리적 수용력 평가)

  • Han, Sang-Yoel;Kwon, Heon-Gyo
    • Journal of Korean Society of Forest Science
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    • v.98 no.3
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    • pp.297-304
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    • 2009
  • Bukhansan National Park is facing dramatic increase of visitors since no entrance fee charge effected in January of 2007. This study was carried out to estimate socio-psychological carrying capacity of Bukhansan National Park based on marginal utility theory model, provide management tactics by stages. 512 visitors to Bukhansan National Park were surveyed during the October of 2008. The data analysis indicated that sociopsychological carrying capacity was estimated as approximately 65,000 people per day for Bukhansan National Park.