• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.10a
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• pp.266-267
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• 2000

한국 서해안 해조류에 관한 연구는 Kang (1966)이 '한국 해조류의 지리적 분포에 관한 연구'의 일환으로서 총 140종의 출현종을 정리한 이후, 본격적으로 시작되었다. 서해안 해조류 연구는 초기에 주로 출현종의 목록 작성 및 종의 기재를 위주로 하는 지역 해조상 조사가 행해져 오다가(이, 1973; 강 등, 1980), 이를 기초로 해서 점차 지역 해조 군집의 구조를 밝히는 생태학적 연구로 접근하여 왔다(강과 송, 1984). (중략)

• Korean Journal of Environment and Ecology
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• v.22 no.4
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• pp.453-460
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• 2008

This study conducted an analysis of plant species composition and vegetation at sea cliffs of the uninhabited islets off Ganghwa-gun by applying discontinuous classification method & continuous ordination method of species composition table by correlation. The analysis results are as follows: First, the plant showing the highest appearance frequency was Parthenocissus tricuspidata Planch.(58.3%), followed by Carpinus coreana Nak., Viburnum carlesii Hemsl. and Kalopanax septemlobus Koidz.(37.5%,respectively). As for a plant community, it was found that it consisted of Quercus mongolica community, Tilia mandshurica community, Carpinus coreana community, Sorbus alnifolia community and Pinus thunbergii community; as for the community distribution classified by individual islet, it was revealed that Quercus mongolica community appeared at Sosongdo and Bunjido; Tilia mandshurica community at Sosongdo and Daesongdo; Carpinus coreana community appeared at Woodo, Suribong and Bido; Sorbus alnifolia community at Susido, Sosongdo and Daesongdo, and Pinus thunbergii community at Seokdo and Woodo, respectively. The plant similarity classified by uninhabited islet was found to be the highest at Sosongdo and Daesongdo. This research judged the reason why the typical grassland community of coastal cliffs did not join these islets to be environmental conditions of rock landform where there exists almost no surface soil at most sea cliffs; thus, more detailed study on this was required.

• Korean Journal of Environmental Biology
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• v.30 no.3
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• pp.185-192
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• 2012

We investigated butterfly species diversity on nineteen uninhabited islands around Imja-myeon, Shinan-gun, Jeonnam, Korea. A total of 14 species belong to 5 families were identified. Species of Papilionidae were the most abundant with 5 species, followed by Lycaenidae (4 species). A Lycaenid butterfly, Pseudozizeeria maha (Kollar), was the most dominant species on the surveyed islands. The total number of species was the highest at island Daenorokdo (6 species). To investigate the factors that determine butterfly diversity, we analyzed the relationships between number of species and island area, distance from the largest island nearby, and maximum elevation. We found that island area ($R^2$=0.413, p=0.003) was significantly correlated with butterfly diversity, but other variables such as distance from the largest island nearby and maximum elevation were not correlated.

• Korean Journal of Environment and Ecology
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• v.30 no.4
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• pp.771-782
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• 2016

For basic information collection for the ecological management of forest vegetation in Korean island areas, forest vegetation between inhabited(Daemodo) and uninhabited(Gudo) island was classified in the Z-M phytosociological method and their ecological characteristics in terms of both floristic composition and structure analyzed. Forest vegetation of Daemodo and Gudo were divided into a total of 11 units and 8 units, respectively. Total cover and species diversity index(H') of forest vegetation showed significant differences between the two island, Daemodo has a high value in the tree layer, but, Gudo has a high value in the shrub layer. Composition of Life forms, Daemodo was N-$R_5-D_2$-e and Gudo MM-$R_5-D_2$-e. Family importance value(FIV), Daemdo has a high value in Theaceae(12.2) and Pinaceae(12.0) and Gudo in Lauraceae(16.5) and Fagaceae (11.6). The percentage of the total number of species in the family level, Daemodo is Asteraceae(4.5%) was the highest and Gudo is Liliaceae(7.3%). Indicator species of forest vegetation of the two islands, Daemodo is Nanophanerophytes(N) including Smilax china, Ligustrum japonicum and Eurya japonica was significant inicator species and Gudo is Megaphanerophytes(MM) including Dendropanax morbiferus, Castanopsis sieboldii and Actinodaphne lancifolia.

• Journal of the Economic Geographical Society of Korea
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• v.11 no.4
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• pp.618-630
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• 2008

There are islands about 3,200 in Korea surrounded by the sea side. The region of islands is the transition areas which are a border in the land and marine ecosystem. It is rich in biodiversity depending on the interaction among inland, sea and atmosphere. However, it is worried that damages of marine environment is increased because the more national income and demands ofmarine leisure increase, the more development projects are grown in marine areas. Also this trends are extending in island areas. Incheon Metropolitan city has huge island areas which are both inhabited and deserted islands. The range of island areas is very wide, so it is difficult for the city government to manage environment in the island areas. Therefore, this paper analyzed and discussed the actual conditions about managing marine environment at island areas.

• Journal of the Korean Society for Library and Information Science
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• v.52 no.2
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• pp.103-123
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• 2018

The purpose of this study is to evaluate the user's perception and usability of the unmanned smart library and to derive the improvements. After reviewing the literature on smart technology and smart equipment, we surveyed users who use unmanned smart library installed in Sejong City and Pohang City, and questioned the use, operation and service satisfaction of unmanned smart library. Based on the results of the analysis, we suggested ways to improve the unmanned smart library and draw users to the library. Unattended smart library users varied in age and educational background, and they were most interested in borrowing books and were satisfied with their overall use.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.9
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• pp.315-322
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• 2019

Recently, the Marine Corps of South Korea started to introduce and possess its own weapon systems. On the other hand, the level of maintenance is lower than that of other military forces, and depending on the other military forces, maintenance occurs intermittently when transporting weapons systems. In this case, unmanned vehicles can be used to reduce the cost, manpower, time, and risk of carrying weapons systems. In addition, the transport of weapon systems between islands or between an island and inland of the Marine Corps using unmanned vehicles is easier in terms of the maintenance level and surrounding environment than other military forces. This paper compares the improvement of operational availability and cost of spare parts in terms of logistics support when using unmanned vehicles in the West Sea area, and quantitatively show the efficiency and usability of the weapon system. To compare operational availability and costs for spare parts, a simulation was performed based on the OO weapons system between islands or between an island and inland, and the results were compared and analyzed.

• Korean Journal of Plant Taxonomy
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• v.38 no.3
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• pp.315-332
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• 2008

To elucidate the distribution of broad-leaved evergreen plants of the central part of the Yellow Sea, we surveyed 136 islands of Incheon from May 2006 to March 2008. In the present survey, twelve broad-leaved evergreen species were found on 77 islands, which included 28 inhabited and 49 uninhabited islands. Among them, the most popular plants were the following: Euonymus japonicus Thunb., Elaeagnus macrophylla Thunb., Camellia japonica L., and Cyrtomium falcatum (L.f.) C. Presl. These plants were found growing on Baengnyeong Island, the northmost island among those surveyed, near $N 37^{\circ}60^{\prime}$. On the other hand the following four species are found up to Deokjeok-myeon only, near N $N 37^{\circ}10^{\prime}$: Hedera rhombea (Miq.) Bean,, Quercus acuta Thunb. ex Murray for. acuta, Neolitsea sericea (Blume) Koidz., and Trachelospermum asiaticum (Siebold & Zucc.) Nakai. However, these plants are usually found growing in the southern or southwestern coastal region of the Korean Peninsula. Thus the distribution of the broad-leaved evergreen plants growing on these high latitude islands might be influenced by a warm current of the Yellow Sea. The distribution of broad-leaved evergreen plants on each island is described.

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2008.10a
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• pp.43-45
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• 2008

본 연구는 천연기념물로 지정된 백로 왜가리 집단번식지의 보호 및 관리에 대한 기초자료 확보 및 DB구축마련을 위해 무안, 양양, 통영, 횡성, 여주, 진천의 6개의 지정지역을 대상으로 2008년 6월$\sim$9월까지 번식지 현 실태, 개체수, 수목훼손율을 파악하였다. 현지 조사결과 백로류의 집단 도래지는 주변 개발로 인하여 채식지 부족 현상, 백로류의 배설물로 인한 고사목의 증가, 천연기념물지정 후 관리미흡 등 많은 위협을 받고 있었다. 천연기념물 백로류 번식지 중 통영의 경우 현재 백로와 왜가리가 도래하지 않았으며, 다른 지역의 번식지는 도래 개체수가 급격히 감소하였다. 백로류 번식지의 고사목이 늘어나면서 둥지목의 그루수는 감소하였고, 둥지목당 번식둥지가 증가하는 현상을 보여주었다.

• ALGAE
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• v.20 no.1
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• pp.53-59
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• 2005

The objective of this study was to clarify marine algal flora and community structure of 16 uninhabited islands in Sinangun area, south western coast of Korea. As a result, a total of 63 species - 11 greens, 16 browns and 36 reds - was identified. The functional groups of marine algal species were filamentous 14.3%, foliose 20.5%, corticated 45.3%, leathery 13.7%, and articulated calcareous algae 6.2%. The (R+C)/P value was calculated as 2.9 showed temperate flora. The result of DCA showed that 16 uninhabitated islands tend to be distributed eastern and western parts. The dominant species was Ulva pertusa, while the subdominats were Gelidium divaricatum, Myelophycus simplex. The vertical distribution pattern of intertidal marine algae represented three distinct zones; Gloiopeltis furcata, Myelophycus simplex, Gelidium divaricatum - Ulva pertusa, Enteromorpha spp., Ishige okamurae - Ulva pertusa, Sargassum thunbergii, Symphyocladia latiuscula.