• 제목/요약/키워드: Ecological Urban

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Ecological Consideration for Restoration of the Degraded Urban River

  • Lee, Chang-Seok;Yon, Young-Han
    • The Korean Journal of Ecology
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    • 제25권4호
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    • pp.247-252
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    • 2002
  • Vegetation and riverine structures were compared among urban and several semi-natural rivers by applying direct gradient analysis and ordination method. Urban rivers showed different species composition from the semi-natural ones. Species composition of semi-natural rivers depended on the geographical positions, such as the upstream, midstream, and downstream and on micro-topographies, such as the waterside, flooding bed, and embankment. Semi-natural rivers showed gentle change in micro-topography, whereas urban one did not so. Our restoration plan to improve the ecological quality of the degraded urban river by imitating semi-natural river was prepared based on those data.

도시지역 생태복원계획의 핵심토대로서 도시소생물권 도면화작업과 정보시스템 구축방법론 개발에 관한 연구 -대구시를 사례지로- (The urban biotope mapping and a building of biotope information system as a specialized tool of urban ecological landscape planning)

  • 나정화;박인환
    • 한국조경학회지
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    • 제26권2호
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    • pp.118-132
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    • 1998
  • There are numerous plant and animal species which are adapted to the conditioins of the urban environment. The objectie of landscape and nature conservation in cities can be considered as the perservation of these organisms as the basis for a direct contact between urban dwellers and the landscape elements. However, after 1980 in Korea, green and biotope oases started to develop in the center of the urban area, from which the surrounding population benefited, at least indirectly. Thus urban biotope mapping and biotope informatioin system as a specialized tool of urban ecological landscape planning will make clear the orientation for the preservation of species and renaturalizing measures. The results are as follows : 1) Biotope types in the study area were separated to 21 biotope. 2) The written description of the biotopes took place on the computerized forms. The basis for the uniform inclusion and description of all biotopes surveyed was a codeplan. Additional details were included on the urban biotope mapping. 3) The evaluation of the mapped biotopes was completed to the following aspect, namely " species diversity and biotope conservation value" and "nature experience value". 4) UBM and BIS represent an important basis for decision aid for the city administration within the context of the ecological urban and landscape planning process. 5) The methodology of UBM and BIS in this study area could be extended to whole urban area.to whole urban area.

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수도권 개발제한구역의 경관생태학적 가치평가 (An Assessment of Landscape Ecological Value of Greenbelt Areas in the Seoul Metropolitan Area)

  • 오규식;박지혜;이동우
    • 환경영향평가
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    • 제20권6호
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    • pp.867-878
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    • 2011
  • Development restriction areas (greenbelt areas) of Korea were recognized in 1970 as a means to control urban sprawl and conserve the natural environment. Although there have been some achievements, for a long time many planners and residents have requested a redefining of the green belt due to individual property rights restrictions and urban management problems. In fact, a lot of the greenbelt area is being destroyed by urban development. Therefore, conservation of ecological spaces in the green belt is needed to maintain urban naturalness. In this regard, this study suggests efficient methods to manage the greenbelt through the adoption of a landscape ecological value assessment. The greenbelt of the Seoul Metropolitan Area (SMA) is represented as the case study because there has been mounting pressure to develop the area in Korea. In this study, the assessment of the landscape ecology in the greenbelt area focuses on landscape structure and function. The assessment consists of the following steps: First, patches were derived by NDVI analysis using landsat remote sensing data. Second, characteristics of the patches were quantified by analyzing the landscape structure, such as patch size and shape index. Lastly, the gravity model and least cost path analysis to assess connectivity were applied to evaluate the landscape function in the green belt areas. The assessment result showed that 48.45% of green belt area should be conserved to maintain ecological stability and function. Moreover, major ecological networks were identified near the large patches in the northern and southern areas. However, relative low ecological values were identified in the western part of the green belt area due to the lack of green spaces. Furthermore, some development plans in the green belt were also identified near the conservation area. Based on these results, the restoration needed areas to enhance ecological value in green belt were displayed. This study suggests efficient management of the greenbelt area, which is disappearing as a result of urban development. The area for conservation chosen in this study should be managed carefully in urban planning. Finally, the results of this study can be used in green belt polices and plans for the promotion of ecological naturalness and stability.

복원 및 경관생태학적 원리에 근거한 남산의 생태공원화 계획 (Restoration and Landscape Ecological Design to Restore Mt. Nam in Seoul, Korea as an Ecological Park)

  • 이창석;문정숙;김재은;조현제;이남주
    • The Korean Journal of Ecology
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    • 제21권5_3호
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    • pp.723-733
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    • 1998
  • Restoration to improve the ecological quality of Mt. Nam was explored in a viewpoint of restoration in both landscape and ecosystem levels. A restoration plan in landscape level was based on the result on the land-use pattern in Mt. Nam including its surrounding area and that in ecosystem level on the ecological quality of each landscape element. A plant to construct the green network, which extending from Mt. Nam to the Han river through the Yongsan family park and through the Eungbong urban park was prepared as a restoration project in landscape level to improve the ecological quality of Mt. Nam as an ecological park. On the other hand, a plan for restoration and creation of biotop as a restoration project in ecosystem level was also prepared to improve the ecological quality of each green area consisting green network. Green areas composing green network include keystone green area (Mt. Nam), green stations (Yongsan family park, Eungbong urban park, and the han river citizen's park), and green pathway (or ecological corridor) connecting those green areas.

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자연환경관리 GIS를 이용한 서울시 생태.자연도 작성연구 (Development of the mapping method for Urban Ecological Map for Seoul ' using Natural Environment Management GIS)

  • 김윤종;조용현;김경민
    • Spatial Information Research
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    • 제8권1호
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    • pp.51-67
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    • 2000
  • 본 연구는 서울시 생태·자연도의작성방안 마련을 위한 기초연구로서 도시생태계에 적합한 생태적 보전가치 평가모형의 개발이 시도되었으며, 서울시 소재 관악산을 대상지로 하여 생물종 현황자료 및 자연환경 GIS자료를 이용한 보전가치 평가결과를 토대로 생태·자연도가 시험적으로 작성되었다. 연구결과를 요약하면 다음과 같다. 첫째, 법정 생태·자연도 등급기준의 문제점은 전국규모의 우수생태계 중심의 등급기준으로서 도시생태계의 보전가치를 평가하기에는 미흡하며, 등급기준이 모두 정상적이다. 그리고 법정 생태·자여도 상의 별도관리지역 체계는 효과적인 도시생태계 관리에 부적합하다는 점이다. 둘째, 앞으로 생태·자연도 등급기준의 개선방향은 1 등급의 경우 복원대상지역과 시관리야생동·식물 및 서식지를 포함하고, 2등급에 생태통로지역을 추가하는 것이 필요하다. 셋째, 생태·자연도 평가과정은 순수 보존가치 평가에 의한 생태등급 평가와 행위규제를 포함하는 생태·자연도 작성과정을 분리하는 것이 바람직하다. 평가모형 개발에서는 위계분석기법에 의한 평가인자선정과 쌍체비교기법에 의한 가중치 선정과정을 거치는 것이 평가모형의 객관성 논란을 줄이는 방법이 될 수 있다. 넷째, 시생태·자연도는 도시생태계의 규모 및 특성에 맞게 구역별 행위규제기준이 재조정되어야 할 것이다.

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대도시 인구밀집지역의 토지이용에 따른 식물상의 차이 및 비교 (A Comparison of Floral Difference by the Land Use Type in the Metropolitan Area)

  • 이상화;이규석
    • 한국환경복원기술학회지
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    • 제7권1호
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    • pp.10-18
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    • 2004
  • The urban ecosystem, unlike the natural ecosystem, has been affected by the urban environment, so the existences of normal creatures have been threatened and eventually the stability has declined to consist of those that have adapted to such. Therefore, by creating a list of such organisms, their number of variety can be found out and their ecological distinction can be understood. Because flora is known to be an ecological index reflecting region's effects of human and societal environments, weather, and climates, it is a useful method of finding out the ecological position and distinctiveness of that region. The study site is part of watershed at Yangjae Stream, Kahngnam-ku, Seoul. In this study, the difference of flora in each land use type are investigated by plant identification. The purpose of this study is to evaluate the city's plant surviving environment, and eventually to contribute to the restoration of urban green spaces by finding out the plants which are appropriate for the corresponding environment. After doing the study, it was found that the urban forest is the most stable urban ecosystem while the urban park is seriously disturbed, and ecologically unstable. The urban stream is also disturbed continuously.

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

  • 차재규
    • 환경영향평가
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    • 제32권6호
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    • pp.503-515
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    • 2023
  • 개발 과정에서 발생하는 생태공간의 단절과 파편화는 생물다양성의 위협 요소이다. 특히 개발 압력이 높은 도심은 생태공간이 부족하여 연결성이 매우 낮을 것이다. 이러한 문제는 대도시에서 더욱 두드러지게 나타나는 경향이 있다. 이를 해결하기 위해 개별 사업이나 도시관리 수준에서 생태적 연결성 현황을 파악하고 개선하는 지속적인 노력이 필요하다. 그러나 대도시의 생태적 연결성 현황 파악과 개선에 대한 논의가 부족한 실정이다. 따라서 본 연구는 우리나라 대도시 서울, 부산, 대구, 인천, 광주, 대전, 울산의 도심이 가진 생태적 연결성을 평가하였다. 평가 결과 도심은 외곽이나 도시 전체와 비교해 연결성이 낮았다. 그리고 종분포모델 등 지역 특성을 반영하여 대전을 대상으로 수행한 생태적 연결망을 분석하여 1ha 이상 산림을 이어주는 최적 경로 510개를 도출하였다. 본 연구는 도시의 생태적 연결성 개선 목표 제시에 필요한 정량적 수치와 생물다양성을 포함한 지역 특성에 따른 연결망을 도출한 사례로서 의미가 있다. 환경영향평가나 도시관리에서 생태적 연결성을 개선하는 방향을 제시하고 평가 체계를 구축하는 데 결과를 활용할 수 있을 것으로 기대된다.

하구환경의 생태적 설계 (Ecological Design of Estuarine Environment)

  • 양홍모
    • 한국조경학회지
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    • 제23권2호
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    • pp.167-181
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    • 1995
  • An Ecocomplex is proposed for ecological design of the estuarine environment of Han River, which is designed upon an alternative mamagement concept of estuarine environment. The concept reveals interrelationships among estuary, delta region and urban inland with inputs/outputs and feedbacks among them. The Ecocomplex emphasizes an integration of wastewater treatment with aquaculture, agriculture and recreation, and carries out ecological treatment, recycling, and harvest processes. A module of wastewater treatment pond system is employed in the Ecocomplex, which treats a flow of 3,786 ㎥/day and is composed of a four-facultative-pond series. Treatment ponds stabilize wastewater discharged from the urban area, and concurrently produce algae for commercial or recreational fish farming. Effluent from treatment and fish ponds is reused for agricultural production. Through the waste-algae-fish-vegetable-recreation processes, wastewater from the urban settlement is recycled back to the urban ecosystem. This resource-conserving design approach can maintain a sustainable urban ecosystem, managing an estuarine environment more naturally, healthly, and economically.

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지속 가능한 개발 및 생태조경분야의 연구경향과 과제 (Issues and Trends concerning of Ecological Landscape Planning and Design with ESSD)

  • 이명우
    • 한국조경학회지
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    • 제32권1호
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    • pp.139-156
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    • 2004
  • All Papers on Ecological Landscape Degign in KILA from 1973 to 2003 are listed herein for finding research issues and trends. The emerging field of Ecological studies of landscape design is based on Landscape Ecology and Watershed Ecology, the Principles of which can be applied to surveying and evaluation, Planning and design, construction and management focusing preservation of wildlife habitat and niche. This field can be classified into six categories: 1. Sustainable site planning and index, 2. Ecological planning process and regulation, 3. landscape ecology and biotope map, 4. Watershed and eco corridor project, 5. Urban forestry and environment, and 6. artificial ground and restoration ecology. The following is the summary of the findings from Paper review: 1. Sustainable index shall be studied about more specified sites. Water recycling facilities, and reservation wet land need to be studied. 2. Policy and legislation research on Ecological design shall be researched by expanding of the application field. Nature park planning and management fields shall be considered as the main theme of green networking Parts. 3. Landscape Ecological studies should be connected to practical surveying data, e.g. the eco-maps published by Environment Ministry. Traditional culture and science should be joined with the modem science. 4. Eco-corridor planning will go with the scenarios and theories of watershed ecology. 5. Urban forestry shall be studied with the wildlife's behavior and habitat. 6. Restoration engineering techniques should be reconsidered with the wildlife's existence and environmental affiliation.

도심광장의 생태적건전성 활성화방안 - 강릉시 교동 광장을 사례로 - (A Study of Activating Urban Square's Ecological Soundness - Focusing on Gyodong Square in the City of Gangneung -)

  • 김지연;강선홍;조태동
    • 한국환경과학회지
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    • 제26권7호
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    • pp.837-846
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    • 2017
  • This study aimed to investigate the dilapidated Fine View Square located in the city of Gangneung and analyze problems for building it into a sustainable space under an effective management plan. Further to creating an ecological base for restoring the natural circulation, a restorative method for the damaged area, a spatial assignment by the UNESCO's Man and Biosphere Programme (MAB), and an urban ecological park, we not only wanted to provide an environment that is citizen friendly, but also a practical and realizable project to connect with the various methods and programs mentioned above, while utilizing the Ministry of the Environment 's ecosystem conservation fund. In conclusion, we found that it would be possible to contribute to building an urban ecological park the Ministry of Environment proposed while restoring the lost natural circulation in Gyodong Square in the city of Gangneung and ecological soundness of the city along with the reduced heat island effect and the increased biological diversity and Ecological Soundness.