• 제목/요약/키워드: Islands

검색결과 1,516건 처리시간 0.031초

전라남도 도서지역 귀화식물의 도서생물지리학적 특성 (Island-Biogeographical Characteristics of Naturalized Plant in Jeollanamdo Islands)

  • 김현희;김다빈;전철현;김찬수;공우석
    • 환경영향평가
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    • 제26권4호
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    • pp.272-289
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    • 2017
  • 본 연구는 전라남도 도서지역 귀화식물의 분포 현황을 도서생물지리학적 관점에서 분석하였다. 유인도 47곳, 무인도 194곳의 식물상 자료를 분석한 결과 귀화식물은 30과 134종이 분포한다. 분포역이 가장 넓은 종은 소리쟁이(Rumex crispus)로 모두 141곳의 도서에 분포한다. 도서별 평균 귀화식물 종수는 유인도 20.6종(${\pm}14.22$), 무인도 3.7종(${\pm}3.89$)이다. 도서별로는 여수시 금오도가 59종으로 가장 많다. 자생식물 대비 귀화식물의 비율인 귀화율은 유인도서 7.66%(${\pm}3.96$), 무인도서 4.97%(${\pm}3.70$)이다. 지역별로는 전라남도 서해 도서지역 귀화율이 5.92%(${\pm}4.49$)로 남해 도서지역 4.96%(${\pm}2.15$)보다 높다. 특히 유인도서 내 귀화율은 서해 도서지역 8.39%(${\pm}4.37$), 남해 도서지역 5.80%(${\pm}1.41$)로 그 차이가 더 크다. 도서지역 귀화식물 귀화율은 섬의 크기와 유의한 양의 관계(r=0.412, p<0.01)를 갖지만, 육지로부터의 거리, 해발고도와의 상관성은 유의하지 않다. 법정 생태계 교란종은 8종이 분포하며 종에 따라 분포역에 차이가 있다. 이와 같은 도서 및 지역 간 차이는 물리적 환경 차이와 함께 육지와의 왕래 정도, 경작에 따른 토지 간섭 등 자연 및 인문 환경요인이 복합적으로 반영된 결과로 보인다. 도서지역은 서식지가 제한적이기 때문에 외부로부터 유입되는 종이나 각종 환경 변화에 취약할 수밖에 없다. 따라서 도서지역 외래종에 대한 지속적인 모니터링과 관리가 필요하다.

계통비연계 도서지역의 수요특성과 패턴분석에 따른 전력보급방안 (Power Supply Considering load Characteristics and Eletricity Usage Pattern of Domestic Remote Islands)

  • 조인승;이창호
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 A
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    • pp.432-434
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    • 2002
  • Recently, electricity demand of remote islands in Korea has been rapidly increased. It's mainly due to increase of income level resulted from economic development. Electricity demand patterns and characteristics in remote islands are different from those of mainland in point of time of peak load, demographic and industrial characteristics of islands, and so on. The optimal power supply in remote islands has a important relationship with accurate analysis of island's load characteristics, the adoption of relevant load forecasting technique, and optimal power facilities reflecting local's electricity demand characteristics. This paper shows the recent load pattern and characteristics, load forecasting using probability distribution, and the perpetration of relevant power facilities in remote islands.

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Predictive Distribution Modelling of Calamus andamanicus Kurz, an Endemic Rattan from Andaman and Nicobar Islands, India

  • Sreekumar, V.B.;Suganthasakthivel, R.;Sreejith, K.A.;Sanil, M.S.
    • Journal of Forest and Environmental Science
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    • 제32권1호
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    • pp.94-98
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    • 2016
  • Calamus andamanicus Kurz is one of the commercially important solitary rattans endemic to Andaman and Nicobar islands. The habitat suitability modeling program, MaxEnt, was used to predict the potential ecological niches of this species, based on bioclimatic variables. The study revealed high potential distribution of C. andamanicus across both Andaman and Nicobar islands. Of the 33 spatially unique points, 21 points were recorded from South and North Andamans and 12 from Great Nicobar Islands. The islands like Little Andaman, North Sentinel, Little Nicobar, Tllangchong, Teressa were also predicted positive even though this rattan is not recorded from these islands. Mean diurnal range, higher precipitation in the wettest month of the year, annual precipitation and precipitation in the driest month are the main predictors of this species distribution.

A Case of Ancylostoma ceylanicum Infection Occurring in an Australian Soldier Returned from Solomon Islands

  • Speare, Rick;Bradbury, Richard Stewart;Croese, John
    • Parasites, Hosts and Diseases
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    • 제54권4호
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    • pp.533-536
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    • 2016
  • A 26-year-old male member of the Australian Defense Force presented with a history of central abdominal pain of 4 weeks duration and peripheral eosinophilia consistent with eosinophilic enteritis. Acute hookworm disease was diagnosed as the cause. Adult worms recovered from feces after therapy with albendazole were morphologically consistent with Ancylostoma ceylanicum. As the patient had been deployed with the Regional Assistance Mission to Solomon Islands for 6 months prior to this presentation, it is very likely that the A. ceylanicum was acquired in Solomon Islands. Until now, it has been assumed that any Ancylostoma spp. recovered from humans in Solomon Islands is A. duodenale. However, this case demonstrates that human hookworm infection acquired in the Solomon Islands could be caused by A. ceylanicum.

Flora of Offshore Islands in Shandong Province, China

  • Li, Ming;Wang, Qing;Zong, Meijuan;Wang, Renqing
    • The Korean Journal of Ecology
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    • 제27권2호
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    • pp.57-60
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    • 2004
  • There are 474 species of native vascular plant distributed in offshore islands in Shandong Province, which belong to 262 genera and 82 families. The distribution types of genera of seed plant were classified into 15 types. Temperate characteristic is dominant in the flora of offshore islands and tropical characteristic ranks secondary. Therefore, some islands play the role of stepping islands. Furthermore, 98.85% of the total genera are monotypic or bitypic which shows the offshore habitat heterogeneity in Shandong Province.

The Studies on Remote Sensing and Their Applications of Islands and Offshore Region Features from IKONOS Images

  • Zhou, Changbao;Huang, Weigen;Zhang, Huaguo;Teng, Junhua;Li, Dongling;Xiao, Qingmei
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.123-125
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    • 2003
  • Satellite IKONOS images are one of important remote sensing data sources as today because of their very high spatial resolution. Their detections for islands and offshore oceanic features with multi-dimension and multi-scales information, specially some small islands, are of great potential. Their application abilities in islands and offshore detections are addressed at the first of the paper. And image processing technologies and the information extracting methodologies are described. Some results on remote sensing of the islands and their nearby object features are shown in details. Discussions and conclusions are carried out simply at the final.

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일본 오키나와 낙도형 통합교육 모델 개발을 위한 발전과제 -낙도의 특수교육 특징과 IEAT평가 결과의 비교분석을 중심으로- (Tasks to Develop the Inclusive Education Model for Remote Islands in Okinawa, Japan -Centering on the Analysis of the Characteristics of Remote Islands and the Results of Inclusive Education Assessment Tool (IEAT)-)

  • 김언지
    • 한국콘텐츠학회논문지
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    • 제16권10호
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    • pp.47-55
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    • 2016
  • 본 연구의 목적은 일본 오키나와현에 위치한 낙도의 특수교육 특징과 특수교육 추진현황을 비교 분석하여 낙도형 통합교육 모델 개발을 위한 발전과제를 제안하는 것이다. 이를 위해 일본 오키나와현에 위치한 낙도의 특수교육 시스템을 평가하기 위하여 IEAT를 활용한 설문조사를 실시하였고 설문조사 결과를 바탕으로 t-test를 실시하였다. 연구 결과룰 바탕으로 통합교육 시스템 구축 모델 사업 성과보고서(2016)에서 제시한 과제와 본 연구의 분석결과를 비교분석하여 낙도의 통합교육 모델을 개발하기 위한 발전 과제를 다음과 같이 제시하였다. 향후 낙도의 통합교육 모델을 개발하기 위해서는 첫째, 특수교육의 전문성을 확보해야 하며 둘째, 다직종 다기관과의 연계가 이루어져야 할 것이며 셋째, 장애에 대한 이해를 촉진시켜야 할 것이다. 넷째, 장애학생의 자립성 향상을 위한 노력이 필요하며 마지막으로 교육 시스템과 관련된 공평성을 확보해야 할 것이다.

Local activation using traditional knowledge and ecological resources of Korean islands

  • Hong, Sun-Kee
    • Journal of Ecology and Environment
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    • 제38권2호
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    • pp.263-269
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    • 2015
  • When we consider changes in agro-fishery systems instigated by environmental changes in islands, rise in sea levels, and natural disasters such as tsunamis, there is an urgent need to carry out initiatives to enhance life standard and conserve ecosystem in island and coastal regions. To protect the region's landscape from the effects of climate change, it is necessary to develop an integrated management system for ecosystem conservation, human settlements, and the local economy. This paper discusses the outline of a preliminary national plan for a sustainable island management system for remote (inhabited and uninhabited) islands in Korea. Two main ideas to enhance life standard are adapting to the natural environment by applying traditional knowledge and utilizing ecological resources of islands, i.e., improving the quality of life and creating added value. As a technique for improving the quality of life, the establishment of eco-villages based on energy-efficient passive houses and ecological welfare is suggested. Another technique for creating added value, the development of sea-farming islands that utilize islands' new recyclable energy is also proposed. Finally, the suggested ideas are discussed in relation to island ecotourism and carbon zero islands.

Rural landscape and biocultural diversity in Shinan-gun, Jeollanam-do, Korea

  • Kim, Jae-Eun
    • Journal of Ecology and Environment
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    • 제38권2호
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    • pp.249-256
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    • 2015
  • Islands are often habitats to unique species because they have different environmental conditions from the mainland and other islands. Another characteristic of islands is their limited natural resources, which has led island residents to heavily rely on traditional ecological knowledge (TEK) and use resources sustainably. The so-called "Maeul landscape" shows the interrelationship of biological species and people's use of natural resources. Shinan-gun is an administrative district located in the southwestern part of Korea that forms an archipelago with huge tidal flat areas. Since long ago, people's use of these tidal flats shows a high degree of biocultural diversity. Maeul landscapes also show humans' adaptation to the natural environment. For instance, strong winds blowing mainly from the northwest have led people in Shinan-gun to create "Ushil," a windbreak forest with stone blocks to block wind from their villages and agricultural fields. At present, the transfer of TEK to future generations is at stake due to socio-economic changes that cause island populations to shrink and age rapidly. Islands are often regarded as good destinations for tourism, but attention should also be given to sustainable development due to the environmental characteristics of islands. International organizations are making efforts to curb the threats of global environmental problems especially on small islands. Their activities are aimed at seeking solutions that stress the central role of biocultural diversity in establishing the sustainable use of natural resources on islands. Joint efforts oflocal people and government authorities to protect and conserve the Maeul landscape should be encouraged.

음향 조사에 의한 2002/2003 하계 시기의 남극 남쉐틀랜드 군도와 남오크니섬 사이의 크릴 밀도 (Acoustic Estimate of the Krill (Euphausia superba) Density between South Shetland Islands and South Orkney Islands, Antarctica, During 2002/2003 Austral Summer)

  • 강돈혁;신형철;이윤호;김영신;김수암
    • Ocean and Polar Research
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    • 제27권1호
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    • pp.75-86
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    • 2005
  • Acoustic survey for density and biomass estimate of Antarctic krill, Euphausia superba, was conducted in the large area between South Shetland Islands and South Orkney Islands, during November 30-December 30, 2002. Considering oceanographic and geographic properties, the study area was divided into six sub-regions. Acoustic system and frequency used in the survey were quantitative echo sounder (Simrad Ek 500) and 38, 120-kHz split beam transducers. In order to discriminate krill aggregations in all acoustic signal, difference of mean volume backscattering strength $({\Delta}MVBS)$ method of the two frequencies was introduced. Averaged krill density for the overall surveyed area was $23.5g/m^2$, and spatially averaged estimates of krill density were $44.9g/m^2$ (north of the South Shetland Islands), $30.3g/m^2$ (Bransfield Strait), $11.3g/m^2$ (near the Elephant Island), $13.6g/m^2$ (north of the Elephant Island), $18.1g/m^2$(between Elephant Island and South Orkney Islands) and $21.7g/m^2$(northwest of the South Orkney Islands) at each sub-area. In the two sub-regions with surveyed area, estimated krill biomass in the north of the Elephant Island was 0.315 million tones with a CV of 18.35% $(6,766mile^2)$, and between Elephant Island and South Orkey Islands was 1.26 million tones with a CV of 9.45% $(20,299mile^2)$. As a whole, the krill density in the early summer season was low level, comparing with that of January-February. This suggested that major krill swarms in the around South Shetland Islands were reached in the mid-summer seasons from western part of the Antarctic Peninsula, and the low krill density also affects the density variation of the krill between Elephant Island and South Orkney Islands.