http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
개별검색 DB통합검색이 안되는 DB는 DB아이콘을 클릭하여 이용하실 수 있습니다.
통계정보 및 조사
예술 / 패션
<해외전자자료 이용권한 안내>
- 이용 대상 : RISS의 모든 해외전자자료는 교수, 강사, 대학(원)생, 연구원, 대학직원에 한하여(로그인 필수) 이용 가능
- 구독대학 소속 이용자: RISS 해외전자자료 통합검색 및 등록된 대학IP 대역 내에서 24시간 무료 이용
- 미구독대학 소속 이용자: RISS 해외전자자료 통합검색을 통한 오후 4시~익일 오전 9시 무료 이용
※ 단, EBSCO ASC/BSC(오후 5시~익일 오전 9시 무료 이용)
Landscape structure, habitat types, vegetation structure and biodiversity in the Bokha streamchosen as a reference stream were investigated to get ecological information necessary for restoration of urban stream degraded by excesive artificial interference. Landscape structure showed a slight change betwen before and after flooding. Habitat types of nine sorts were identified based on ecological information obtained from field survey such as micro-topography, hydrological characteristics, disturbance regime, and so on. Each habitat holds specific organisms to each site. Consequently, the number of plant comunities, and species of benthos and fish increased as the kinds of habitat type increase. Ordination of habitat types based on vegetation, benthos, and fish data reorganized them into three groups of pool types of two kinds depending on whether they are connected to the water course or not and riffle one. Vegetation showed different stratification and species composition depending on topographical position in relation to disturbance cycle. Based on the results from this study, relationship between environmental heterogeneity and biodiversity was discussed and a restoration plan was suggested in a viewpoint of vegetation.
Landscape changes for 20 years betwen 1981 and 2001 in the Wangsuk stream basin locatedon the central Korea were investigated on the basis of physiognomic vegetation map made from the aerialphotograph interpretation and field check. Changes of landscape structure were noticeable in agricultural fieldinto the institutional agriculture dominated landscape change, although urbanization also contributed to suchchange. The former change due to change of food production structure originated from socio-economicdevelopment during this period and the latter to the overpopulation of Seoul. As energy sources for heating andcooking, fertilizer, and fodder for livestock transform from plant materials to fossil fuel, manufactured one, andgrain, succession of forest escaped from direct human disturbance dominated change of landscape structure inforested land. Differently from the positive landscape change in the upper area, change in the lower areathe Wangsuk stream basin would influence water quality of the stream. In order to realize sustainable land-useagainst such environmental degradation, systematic environmental management based on landscape cologicalperspective such as an eco-plan for creating riparian vegetation belt, which is under preparation by Ministryof Environment, was recommended.
정보화 시대로 접어들면서, 다양한 정보 기술이 등장하였고 산업 전반적인 부분에서 정보기술의 중요성이 부각되고 있다. 경영학과 마케팅을 필두로 이러한 정보시스템의 사용과 성과와의 관계에 대한 연구가 활발하게 진행되고 있으며 다양한 연구를 통하여 실증적으로 분석 되고 있 다. 그러나 이러한 움직임에도 불구하고 관광산업 분야에서는 전체 사업체의 25%만 정보시스템을 사용하고 있을 정도로 정보시스템의 사용이 미비한 실정이 며, 이와 관련된 연구도 진행되지 않고 있다. 따라서 관광산업 분야에서도 정보시스템의 사용과 성과와의 관계를 연구할 필요가 있으며, 실증적인 분석을 통하여 이를 검증할 필요가 있 다. 본 연구는 관광산업관련 업무 종사자들을 대상으로 하여 관광산업에서 정보기술의 사용이 개인의 업무 성과에 어떠한 영향을 주는지 살펴보고자 하였다. 이를 위하여 시장지향성 이론과 혁신성이론을 기반으로 하여 관광산업에 적합하게 변수에 대한 분석을 통하여 연구가설을 설정하 고, 연구모형을 설계 하여 구조방정식을 활용하여 실증 분석을 하였다. 본 연구의 분석 결과를 통해 관광산업에서 정보기술의 사용 요인과 그 특성을 파악 할 수 있으며, 관광산업에서 정보기술 사용의 중요성에 대하여 시사하였다. 또한 정보기술의 사용이 곧 관광산업 종사자들의 업무 성과를 높여준다는 것을 실증적으로 분석하여 제시 함으로 관광분야산업에서 정보시스템을 사용 하여 경영적인 측면과 운영적인 부분에서 개인의 업무 성과를 높일 수 있다는 실무적인 시사점은 물론, 경영학과 마케팅분야에서 연구되어진 이론을 관광분야에 적용시켜 활용한 것에 이론적인 함의를 둘 수 있 다.
Lammas growth, a rare phenomenon for Korean red pine (Pinus densiflora), occurred in 2006.Lamas shoots showed higher frequency and longer length in Seoul's hotter urban center than in urban boundary or suburban forest sites. Frequency and length showed a close correlation with urbanization density and vegetation cover expressed in NDVI. Air temperature in the late summer of 2006 was more than 1℃ higher than an average year. Of the predominant environmental signals thatmodulate bud flush, only temperature changed significantly during the year. Differences in temperature between the urban centers, urban boundaries and suburban forests correlated with varying land-use density. The rise in temperature likely spurred lamas consequences wil be clearer in the future. Considerate interest in the responses of ecological systems to the variable changes is required to prepare for unforeseeable crises. Monitoring of diverse ecological phenomena at Long Term Ecological Research sites could offer harbingers of change.
We evaluated the restoration effect by introducing willows as a means of controlling invasions of giant ragweed (Ambrosia trifida L.) on a riparian site. Our preliminary survey demonstrated that a problematic exotic species, giant ragweed and the representative riparian species, Salix koreensis are in competitive exclusive relationship. We planted willows at 1 m intervals on the bank of the Dongmun stream at Munsan, Paju, in Central Western Korea as an experimental restoration practice. We installed two 50 m ⅹ 5 m sized restored and non-restored for this experimental study. The non-restored plots were located on river banks, which were covered with concrete blocks and left in itself without any treatment. The height of willow was measured after each of three consecutive growing seasons and compared with the height of the giant ragweed. Although the height of Salix gracilistyla did not achieve the height of the giant ragweed, the height of S. koreensis surpassed that of giant ragweed in the third year after introduction. The results were also reflected in the relative light intensity on the herb layer of willow stand, and thereby the relative light intensities of stands, which were dominated by S. koreensis or restored by introducing S. koreensis, 1.99 ± 0.33 (%, mean ± SD) and 1.92 ± 0.50 (%,mean ± SD), respectively were lower than those in the stands treated by S. gracilistyla, 3.01 ± 0.43 (%, mean ± SD). The giant ragweed stands receive full sunlight as there are no any vegetation layers higher than the herb layer formed by the giant ragweed. As the result of Detrended Correspondence analysis ordination based on naturally established vegetation,the stands dominated by willows and giant ragweed showed different species composition between both stands. The species composition of the restoratively treated sites resembled the reference sites more than the non-treated sites. The species diversity (H’) of the sites restored by introducing S. koreensis and S. gracilistyla was higher than the non-restored site dominated by A. trifida. On the basis of our results, the restoration of riparian vegetation equipped with integrated features could contribute not only to the control of exotic plants including giant ragweed but also to ensure the diversity and stability of riverine ecosystems.
This study evaluated the effects of rehabilitaticomposition and species diversity. The species composition of most rehabilitated stands differed from that of the reference stands, and thus did not suggest successful rehabilitation. However, stands subjected to restorative treatment many years ago showed higher species diversity than the reference stands and thereby met the goals of rehabilitation. Our results demonstrate that restorative treatments practiced in the past created a hetero-geneous ecological space with regard to the surrounding areas. Therefore, even though species diversity in-creased several years after rehabilitation, this does not indicate that the treatment achieved true rehabilitation success. The treatment did result in temporary stability through increased species diversity, but it could not be