• Title/Summary/Keyword: Environmental and Ecological Analysis

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Ecological Connectivity and Network Analysis of the Urban Center in a Metropolitan City (대도시 도심의 생태적 연결성 및 연결망 분석)

  • Jaegyu Cha
    • Journal of Environmental Impact Assessment
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    • v.32 no.6
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    • pp.503-515
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    • 2023
  • The disconnection and fragmentation of ecological spaces that occur during the development process pose a significant threat to biodiversity. Urban center areas with high development pressure are particularly susceptible to low connectivity due to a scarcity of ecological space. This issue tends to be more pronounced in larger cities.To address this challenge, continuous efforts are needed to assess and improve the current state of ecological space connectivity at the level of individual projects and urban management. However, there is a lack of discussion regarding the analysis and improvement of ecological connectivity in metropolitan cities In line with this objective, this study evaluated the connectivity of ecological spaces in the city centers of Seoul, Busan, Daegu, Incheon, Gwangju, Daejeon, and Ulsan. The evaluation revealed that city centers exhibited lower connectivity of ecological spaces compared to their peripheries or the overall city. In addition, in the ecological network analysis that reflected regional characteristics, such as the species distribution model conducted on Daejeon, 510 optimal paths connecting forests of more than 1ha were derived. This study is significant as an example of deriving an ecological network based on regional characteristics, including quantitative figures necessary for establishing goals to improve urban ecological connectivity and biodiversity. It is anticipated that the results can be utilized to propose directions for enhancing ecological connectivity in environmental impact assessments or urban management and to establish an evaluation framework.

A Study on the Planning Elements for Ecological Restoration of Urban Stream through Present Condition Analysis - focused on the Yeocheon and the Mugeo stream - (현황분석을 통한 도시 소하천의 생태하천 계획요소에 관한 연구 -울산광역시 무거.여천천을 중심으로-)

  • Kim, Seong Cheol;Lee, Cheol Yeong
    • Journal of Environmental Science International
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    • v.13 no.9
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    • pp.747-757
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    • 2004
  • The objectives of this study were to investigate the physical, chemical, and structural characteristics of the stream, especially Mugeo and Yeochon which are being changed to ecological stream by Ulsan city, and to acquire the considerations such as the planning element and plan criteria of the streams for making ecological stream system. Water quality, water quantity, vegetation, in stream structures and facilities, and land usage of the streams were investigated and the build up capabilities of ecological stream for the two streams were also analyzed. Planning elements for restoration to ecological stream included physical and biological purification methods in water quality, short term water acquire alternatives in water quantity, and vegetation recovery plan and improvement of habitation environment in ecological system, respectively. Planing elements in physical structures and facilities also included recovery of concrete levee and removal and recovery of covered channel.

Marine Athrinium spp. Isolated from Sargassum sp. (Brown Algae) in Jeju Island and Unrecorded Species in Korea

  • Jang, Seokyoon;Hong, Joo-Hyun;Heo, Young Mok;Kim, Jae-Jin
    • The Korean Journal of Mycology
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    • v.44 no.4
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    • pp.259-262
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    • 2016
  • Arthrinium (Ascomycota, Apiosporaceae) is a major marine fungal genus. Three Arthrinium species were reported previously, but not fully described. We isolated the two species A. arundinis and A. saccharicola from Sargassum sp. brown algae in Jeju Island, Korea. These species have not been previously reported in Korea. We described these species in detail and performed a phylogenetic analysis based on the nucleotide sequences of the EF1-${\alpha}$ and ${\beta}$-tubulin genes.

Suggestion of the Relative Elevation Analysis Methods for Conservation of Local Topography : Focused on Analysis Range (지역규모의 지형경관 보전을 위한 상대고도 분석 방법론 제안 : 분석범위 설정을 중심으로)

  • Song, Wonkyong
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.17 no.5
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    • pp.19-28
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    • 2014
  • Given the structure of Korean mountains, it is more appropriate to apply the relative elevation method than the absolute elevation method. However, so far there were not suitable quantitative methodologies to analyze relative elevation, these analytical concepts were difficult to be utilized in urban environmental planning. This study suggested three methods for analyzing relative elevation, and one method for setting the analytical scope of relative elevation by calculating terrain relief. The results showed that the procedure considering 500m radius of each point and standardizing to 30% of the 7th height ridge was the most effective method to extract the local topography. This methodology is the quantitative tool to be able to conserve local important hills and ridges, and apply to fields of urban environmental planning and ecological restoration, especially urban ecological network.

Exploration on the Development and Characteristics of Composites Painting in the Contemporary Art Ecology

  • Wang Jing Jing
    • International Journal of Advanced Culture Technology
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    • v.11 no.1
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    • pp.232-240
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    • 2023
  • The ecological expression of art in modern society takes the harmonious developmental relationship between man and nature as an element and combines it with the various manifestations of painting as an expression of ecological artistic development. The necessary relationship for the harmonious development of nature is accurately articulated, and the ecological changes in people are expressed in integrated materials that inspire human reflection. In the pursuit of material pleasures, mankind is neglectful and indifferent to the environment. The development of composite painting in art and ecology is a process that more reveres the harmony between man and nature as well as satisfying the creative value of the work. After systematic evaluation and research, people have engaged in various structural forms of composite art painting development in the long history of art development, focusing on the integration of environmental and ecological culture. In the process of nature education going through development, the comprehensive practical development of nature education is enhanced and efforts are made to feel new ecological art ideas and new ways of valuing environmental protection. In this paper, an observational study of eco-art will be carried out, starting from the theory of hierarchical division and analyzing the contradictory relationship between man and nature. Recognize nature, understand it and feel it through eco-art painting. The analysis of the contradictory relationship between man and nature is combined with the identification of various types of information that give value to the environmental protection public, and the combination of ecological painting and nature art to achieve an upgrade of the environmental protection idea of the value of painting. In the development of artistic ecological comprehensive painting, it is necessary to put forward technical requirements and standards that meet the development of modern industry according to the characteristics and methods of ecological painting. The author of this paper discusses the necessity and social value of artistic ecological painting creation from the artist's point of view, expounds the practical achievements of ecological painting from the perspective of the history and present situation of the development of ecological aesthetics at home and abroad, and gives the concept and creative method of contemporary art comprehensive material painting in combination with his own actual situation.

Exploration on the Development and Characteristics of Composites Painting in the Contemporary Art Ecology

  • Wang, Jingjing
    • International Journal of Advanced Culture Technology
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    • v.10 no.4
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    • pp.337-344
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    • 2022
  • The ecological expression of art in modern society takes the harmonious developmental relationship between man and nature as an element and combines it with the various manifestations of painting as an expression of ecological artistic development. The necessary relationship for the harmonious development of nature is accurately articulated, and the ecological changes in people are expressed in integrated materials that inspire human reflection. In the pursuit of material pleasures, mankind is neglectful and indifferent to the environment. The development of composite painting in art and ecology is a process that more reveres the harmony between man and nature as well as satisfying the creative value of the work. After systematic evaluation and research, people have engaged in various structural forms of composite art painting development in the long history of art development, focusing on the integration of environmental and ecological culture.In the process of nature education going through development, the comprehensive practical development of nature education is enhanced and efforts are made to feel new ecological art ideas and new ways of valuing environmental protection. In this paper, an observational study of eco-art will be carried out, starting from the theory of hierarchical division and analyzing the contradictory relationship between man and nature. Recognize nature, understand it and feel it through eco-art painting. The analysis of the contradictory relationship between man and nature is combined with the identification of various types of information that give value to the environmental protection public, and the combination of ecological painting and nature art to achieve an upgrade of the environmental protection idea of the value of painting.

A Study on the Development of an Ecological Park Planning Model to Enhance the Functions of Habitats and Ecological Corridors in Green Belt Areas (개발제한구역 내 생태공원 조성방안에 관한 연구 - 서식처 및 생태통로로서의 기능강화를 중심으로 -)

  • Kim, Dae-Heui;Choi, Hee-Sun;Kim, Hyun-Ae;Kim, Kwi-Gon
    • Journal of Environmental Impact Assessment
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    • v.20 no.3
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    • pp.367-379
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    • 2011
  • This study was conducted to develop an ecological park planning model to enhance the functions of habitats and ecological corridors in Green Belt Areas, because changing policies have resulted in the degredation of the Green Belts due to progressive fragmentation of ecosystems. The principal outcome of the study is to plan an ecological park model through the restoration of habitats. In order to evaluate the capacity of the model to enhance the ecological functions of habitats and ecological corridors in Green Belt Areas, a simulation of habitats was carried out in the Sungnam-Yusoo region. The model was developed via following steps: 1. Selection of candidate sites and selection of the study site by analyzing development factors; 2. Selection of target species that can represent the habitat at the site; 3. Analysis of the site's suitability index for the target species; 4. Establishment of a conceptual plan to enhance and expand the currently produced suitability index; 5. Creation of a master plan based on the conceptual plan; and 6. Evaluation of the enhanced and expanded suitability index of the site. The study showed that the Habitat Unit (HU) of Rana coreana, which was selected as the target species of the study, increased from $28,044m^2$(3.6%) to $224,352m^2$(28.8%), and the HU of the site as the ecological corridor for wild animals increased from $4,674m^2$(0.6%) to $152,684m^2$(19.6%). The study results show that the ecological deficits of the Green Belt Area can be overcome by enhancing the ecological functions of the region, which should be beneficial. The model could be utilized for effective enhancement and management of other Green Belt Areas.

Evaluation of Green GDP by Emergy Analysis (Emergy 분석법에 의한 녹색 GDP 산정)

  • Lee, Dong Joo;Jo, Hyo Seon;Lee, Suk Mo
    • Journal of Environmental Science International
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    • v.24 no.9
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    • pp.1139-1144
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    • 2015
  • The gross domestic product(GDP) measures the welfare of a nation's economy through the aggregation of products and services produced in a nation. Although GDP is a proficient measure of the magnitude of the economy, many economists, environmentalists, and citizens have recently criticized the gross domestic product. The criticism stems from the fact that this measurement of domestic product does not account for environmental degradation and resource depletion. We need to estimate the environmentally adjusted net domestic product. The gross domestic product was 913 trillion won while environmental protection expenditure was 32.9 trillion won by monetary accounts of Korea, 2010. Loss of natural assets was 76.6 trillion emwon by emergy analysis of Korea, 2010. The Green GDP was accounted for 88.0% of the GDP to 803.5 trillion won.

Diversity of the Bambusicolous Fungus Apiospora in Korea: Discovery of New Apiospora Species

  • Sun Lul Kwon;Minseo Cho;Young Min Lee;Hanbyul Lee;Changmu Kim;Gyu-Hyeok Kim;Jae-Jin Kim
    • Mycobiology
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    • v.50 no.5
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    • pp.302-316
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    • 2022
  • Many Apiospora species have been isolated from bamboo plants - to date, 34 bambusicolous Apiospora species have been recorded. They are known as saprophytes, endophytes, and plant pathogens. In this study, 242 bambusicolous Apiospora were isolated from various bamboo materials (branches, culms, leaves, roots, and shoots) and examined using DNA sequence similarity based on the internal transcribed spacer, 28S large subunit ribosomal RNA gene, translation elongation factor 1-alpha, and beta-tubulin regions. Nine Apiospora species (Ap. arundinis, Ap. camelliae-sinensis, Ap. hysterina, Ap. lageniformis sp. nov., Ap. paraphaeosperma, Ap. pseudohyphopodii sp. nov., Ap. rasikravindrae, Ap. saccharicola, and Ap. sargassi) were identified via molecular analysis. Moreover, the highest diversity of Apiospora was found in culms, and the most abundant species was Ap. arundinis. Among the nine Apiospora species, two (Ap. hysterina and Ap. paraphaeosperma) were unrecorded in Korea, and the other two species (Ap. lageniformis sp. nov. and Ap. pseudohyphopodii sp. nov.) were potentially novel species. Here, we describe the diversity of bambusicolous Apiospora species in bamboo organs, construct a multi-locus phylogenetic tree, and delineate morphological features of new bambusicolous Apiospora in Korea.

A study on the environmental education based on the analysis of urban ecological environment contents appeared in video media (영상매체에 나타난 도시생태환경 콘텐츠 분석 및 환경교육 활용 가능성에 관한 연구)

  • Lee, Young-Bum
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.10 no.3
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    • pp.17-26
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    • 2011
  • National efforts responding to climate change is directly connected to competitiveness of the urban environment. Practice in the daily life of the individual citizens is prerequisite for the paradigm shift that can be made by the reduction of the city's energy consumption and low-carbon green growth. Therefore, the comprehensive understanding combined with the educational programs is required on the issue of the ecological environment and the urban environment competitiveness. In this paper, the meaning and role of urban ecological environment will be researched first. it also takes a look at the content of curriculum and analyses domestic policies related to environmental education of primary and middle schools. In addition, video documentary on urban ecological environment will be analyzed for the development of educational media dealing with environmental training in schools. Consequently, urban ecological environment shown in video media content will be identified and the advantage of this possibility as a medium of education is to be proposed.