• Title/Summary/Keyword: 녹화사업

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Performance Evaluation System for Construction Environment of the Unified Waterproofing-Root Resistance Membrane layer of the Green Roof System (인공지반 녹화용 방수방근 복합공법의 시공환경을 고려한 성능평가 시스템 연구)

  • Park, Chang-Hwa;Oh, Sang-Keun;Lim, Nam-Gi
    • Journal of the Korea Institute of Building Construction
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    • v.11 no.2
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    • pp.189-199
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    • 2011
  • Installation of a proper root barrier in a green roof system is very important in order to protect the concrete slab of roof and the root penetration in the waterproofing layer. To select the proper root barrier materials and methods, it is necessary to understand the environmental conditions affecting the waterproofing-root barrier system in green roof construction site. Therefore, we suggested as the environmental performance indexes four kinds of performance requirements; root penetration, chemical attack by chemical agent or fertilizer, load impact by soil depth and size of plant, and water pressure. The related four test methods were suggested for the inspection of these performance indexes. In this research, we could suggest for kinds of test methods as standard test methods to evaluate the environmental performance of waterproofing-root barrier for greening roof system.

The Effect of Greenspace on School Commuting Routes on Pedestrian Satisfaction and the Future Direction of Creation (학교통학로 녹지가 보행자의 만족도와 조성 방향에 미치는 영향)

  • Kim, Min Kyung
    • Journal of the Korean Institute of Landscape Architecture
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    • v.50 no.1
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    • pp.20-32
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    • 2022
  • For this study, 313 pedestrians, including students, from two schools participated in the greening project of the school commuting roads in Seoul. These schools were compared to two without street greenspaces to analyze the effects of the green areas on pedestrian satisfaction and the future direction of creation. As a result of the greenspace satisfaction analysis of schools with greenspace, the items that had the greatest effect on overall satisfaction were 'Width of the sidewalk' (37%), 'Harmony with the surrounding landscape' (24.97%), 'The arrangement of trees, grass, and flowers' (18.30%) and 'Overall management' (10.44%). In other words, the item that satisfies most is securing the appropriate width of the sidewalk where the greenspace is located. It is necessary to re-considered creating greenspaces in existing sidewalk spaces and secure a sidewalk width for pedestrian convenience. As a result of the analysis on the direction of greenspace creation, the respondents who experienced greenspaces through the greenspaces on school commuting routes recognized natural features, such as grass and flowers as more important elements as well as noting that landscape and harmony are important. In addition, respondents interested focusing on functionality recognized the need for greenspaces and highly recognized the importance of arranging natural materials, such as trees, grasses, and flowers. This group also recognized the advantages of functionality and the effectiveness of green spaces. Therefore, it is necessary to expand awareness of the effectiveness of greenspaces through environmental education, publicity, and the provision of information boards. More effort will be needed to apply regional and school characteristics rather than uniform composition to the development of greenspaces.

A Study on the Development Program of Building Integrated Vertical Greening System Based on Climate Design (기후디자인 기반 건축물통합형 입면녹화시스템 개발 방안에 관한 연구)

  • Park, Sung-Eun
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.35 no.3
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    • pp.105-112
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    • 2017
  • Construction and urban development projects that drove urbanization were perceived as a main culprit that disturbs environment and ecosystems, including urban heat island, air pollution and a decrease in species diversity in urban area, as they do not consider natural environment and adopt consistent development behaviors and rapidly degrade the ecology of development sites. In order to build a sustainable green wall system, design process is configured as follows based on basic technology development direction, climate environment elements, climate design technology elements suggested earlier. Each part of required technology element is codified systematically and a sound Korean-style green wall system design direction will be suggested.

Contribution of Tree Plantation, Tree Breeding and Soil Erosion Control Techniques Developed During Saemaul Undong Periods to the Successful Forest Rehabilitation in the Republic of Korea (새마을운동 기간에 조림·육종·사방 기술 연구개발이 우리나라 산림녹화 성공에 미친 기여도 고찰)

  • Lee, Don Koo;Kwon, Ki Cheol;Kang, Kyu-Suk
    • Journal of Korean Society of Forest Science
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    • v.106 no.4
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    • pp.371-379
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    • 2017
  • This study was aimed to investigate the contribution of tree plantation, tree breeding and soil erosion control techniques developed during Saemaul Undong periods to the successful forest rehabilitation in the Republic of Korea. We surveyed a various literature of forest journals and had deep interview with forest experts who were actively involved in the forest rehabilitation projects. In the Republic of Korea, the forest rehabilitation was started with Saemaul Undong in 1970s and carried out to make the country green and to restore degraded forest lands by supports of tree plantation, tree breeding and soil erosion control techniques. Various techniques such as seed storage, seedling production, mass vegetative propagation (grafting and cutting) and special planting at denuded land or slash and burn site were developed for tree plantation. All techniques developed for the forest rehabilitation were connected with Saemaul Undong which caused active participation of local community people. Therefore, the development of tree plantation, tree breeding and soil erosion control skills had great impact on the job creation and income sources of local dwellers. It would be an applicable case to developing countries suffering with deforestation and forest degradation if the Korean skills developed for forest rehabilitation could be transferred.

Prospects of Slope Revegetation Operation and Development Process of Highway Landscape Architecture (우리나라 도로녹화(道路綠花)의 발전과정(發展過程)과 비탈면 녹화사업(綠化事業)의 전망(展望))

  • Jung, Tae-Geun
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.2 no.1
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    • pp.88-93
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    • 1999
  • In modern period, the history of highway landscaping can be divided into three stages. The first stage from the late 1960s to the early 1970s : during this period revegetation operation started and landscape architecture was introduced. The second stage from the late 1970s to the early 1980s : during this period the definition of functional planting which had played the most important role in highway landscaping was established. Also, highway landscaping was influenced by Japan, and the revegetation of highway slopes were applied with Seedspray, Block-sodding methods, and so on. The third stage from late 1980s to the present : during this period eco-landscaping was introduced and began to mix with ecosystem techniques. The revegetation works of cutting-rock slopes have widely been developed. Many people think that landscaping is necessary for us, and that revegetation method is effective to conserve slope environment. Based on accumulated data we have to improve the function of landscaping and revegetation method, and also have to establish the method of landscaping harmonized with our own landscape.

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Forest Environment Degradation and Rehabilitation of Copper Mine Area in Ashio, Japan (일본 아시오(足尾) 銅鑛山地域의 삼림황폐와 삼림환경 복구사업에 관한 분석)

    • Korean Journal of Environment and Ecology
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    • v.15 no.3
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    • pp.276-285
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    • 2001
  • This report surveyed degradation of forest environment and rehabilitation in Ashio of Japan. Since 1880, a large scale forestry in this area has been destroyed by sooty smoke, and the local government invested heavily to rehabilitate the damaged forestry and denuded mountains. These degradations are due to complex operations, such as sulfurous acid gas from copper refinery, forest fires, steep slope and disadvantageous climate. The rehabilitation works on degraded forestry(2,399ha) were undertaken by tree planting fur three years from 1897. However, forest degradation and disasters were continued, and the total damaged areas were about 2,400~3,000ha in 1956. A Manual labor method, a Helicopter method and also Combination of manual labor and helicopter method had been adopted to rehabilitation works from 1945 to 1996, while 828.19ha of the degraded mountains was rehabilitated. Total investment for those projects was 80 billion yen. A debris control dam, a soil arresting structure, a vegetation-block, a vegetation sack measures and tree planting have implemented significantly fur the method of rehabilitation. An objective of manual labor works is a complete rehabilitation on each place through 3 stage working. The revived green areas accounted fur 49% of the total, and the entire afforest areas are less than 10%. In coming 25 years, an amount of 21.3 billion yen will be invested to rehabilitate 564ha of degraded mountain lands. However, it is impossible to estimate that how long it will take until the whole degraded mountain lands are completely rehabilitated. Rehabilitation works in Ashio may be applicable to environmental restoration and revegetation in the abandoned coal-mine lands of Korea.

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Nitrogen Fixation Screening and Plant Growth Assessment for Urban Greening (도시 녹화를 위한 질소고정 균 선별 및 식물 생장 평가)

  • Jeong, Sun Hwan;Lee, Sang Seob
    • Microbiology and Biotechnology Letters
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    • v.46 no.2
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    • pp.154-161
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    • 2018
  • Currently, urban greening projects and research are attracting attention as a way to mitigate urban heat island phenomenon. In this study, nitrogen fixative bacteria were isolated and their effects on plant growth were confirmed. First, enrichment was performed in a nitrogen-free medium to isolate the nitrogen-fixing bacteria, and the colony showing high growth in a medium with limited nitrogen source was isolated and purified. Separated bacterial isolates were reduced by more than 90% acetylene by ARA and indirectly confirmed the activity of nitrogenase by ethylene production. Cedecea sp. MK7 and Enterobacter sp. Y8 with confirmed reproducibility were selected as nitrogen fixative bacteria. Nitrogen fixing bacteria were applied to the growth of perennial rye grass, and it was found that the dry weight increased to 34.80 mg (186.60%) compared with the control with 18.65 mg dry weight. After plant growth, microbial community analysis of soil applied by bacteria showed similarity to the control group. Therefore, in this study, it is expected that the efficiency will be increased if plant growth is promoted by using nitrogen fixing bacteria in urban greenery system.

기기냉각수 최저온도와 정지냉각계통 유량조절밸브 개도에 관한 설계분석

  • 김도현;이중섭;오종필;오광석
    • Proceedings of the Korean Nuclear Society Conference
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    • 1995.10a
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    • pp.444-449
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    • 1995
  • 한국형 표준 원자력발전소의 정지냉각운전시 최대냉각율은 75$^{\circ}$F/hr(41.7$^{\circ}C$/hr)로 기술사양서에 규정되어 있다. 정지냉각운전 냉각율에 가장 큰 영향을 미치는 2가지 중요한 변수는 정지냉각계통 열교환기를 지나는 원자로냉각재 유량과 기기냉각수의 온도다. 이중 열교환기를 지나는 원자로냉각재 유량은 butterfly형 정지냉각계통 유량조절밸브의 개도에 의하여 조절되는데 개도에 따른 throttle 능력이 중요한 인자다. 또 기기냉각수의 온도는 해수온도의 변화에 따라 편차가 발생하므로 유량조절밸브의 개도와 기기냉각수 온도의 상관관계에 따라 냉각능력이 달라진다. 본 논문에서는 현 울진 3&4호기 정지냉각계통 열 교환기 및 조절밸브 둥의 설비를 기준으로 기술사양서 상의 냉각율 75$^{\circ}$F/hr(41.7$^{\circ}C$/hr) 유지가 가능한 최저 기기냉각수의 온도를 찾아보았고, 아울러 기기냉각수의 온도와 조절밸브의 개도 사이의 관계를 조사하였다. 그 결과 현재의 울진 3&4호기 조절밸브를 최저개도로 조절할 때 약 57$^{\circ}$F(13.9$^{\circ}C$)의 기기냉각수가 공급되어도 냉각율 제한치를 넘지 않는 것으로 분석되었다. 한편, 최저조절가능 유량이 약 2000 gpm(7570 l/min)일 경우에는 낮은 기기냉각수가 공급될 경우 최대냉각율을 초과하므로 한 train을 정지시키고 한 train만으로 운전할 것을 고려하여야 할 것으로 보인다. 이 경우 최저 약 56.5$^{\circ}$F(13.6$^{\circ}C$)의 기기냉각수가 공급되어야 한다. 본 논문의 분석결과는 향후 기기설계사양서나 운전지침서 등에 반영되어 실제 발전소 설계 및 운전절차 수립에 기여할 수 있을 것으로 생각된다.공감대의 형성이 요구된다. 질적 측면에서는 공원 녹지의 기능성의 회복이라는 측면과 시대에 부합되는 새로운 기능 및 가치의 부여가 필요하며, 이를 위해서는 공원의 매력, 공원의 시설기능 증진, 녹지의 질의 향상 및 녹지 가치의 증진에 대한 다양한 시책이 요구된다. 구성적 측면에서는 공원녹지의 개별적 존재보다는 공원 녹지를 상호간 유기적인 계통을 확보하여 공원 녹지의 네트워크를 형성하여 도시 속의 산재된 고립된 섬으로서의 공원 녹지가 아닌 시민생활에 늘 가까이 있는 생활 속의 공원녹지로 재편되어야 한다. 이러한 정책의 의제는 양적 측면에서 보전(CONSERVATION)과 창출(CREATION), 질적 측면에서 쇄신(RENOVATION)과 복구(RESTORATION), 그리고 구성적 측면에서 공원 녹지의 연결(CONNECTION)과 시민 참여에 의한 운동(MOVEMENT)이라는 정책 개념의 구현을 통해 가능하다. 이러한 정책 개념과 의제를 가지고 서울시 공원 녹지 정책을 구체화시키기 위해서 푸르름의 새로운 탄생이라는 기치 아래 풍요로운 서울, 사랑 받는 공원, 생활 속의 녹지의 3대 목표, 공원 녹지의 보전, 잠재 공원 녹지의 창출, 공원의 활성화, 녹지의 복구, 경관 보전 및 복구, 공원 녹지의 네트워크, 도시 녹화의 7대 과제를 설정하고 미시설 공원 녹지 집행, 개발 사업시 공원 녹지의 확보, 환경 녹지의 총량 보호 관리, 도시 소공원 개발, 역사 문화 공원 조성, 하천 공간 복원, 공원 시설 기능 개선, 이용 프로그램 개발, 공원 관리 개선, 환경 피해 녹지의 회복, 도시 환경 림 조성, 녹지 기능 증진, 도시 자연 경관 보전, 공원 녹지체계 구성, 공원 녹지 공급 균형, 주변 환경 녹화, 가로 녹화의 17개 시책을 제안하였다. 이러한 정책사업의 원활한 추진을 위해서는 기존의 관주도의 일방적인 공원 녹지 행정이 아닌 시민의 참여를 통한 시민이 함께 하는 정 책 사업의 추진이 요구되며, 특히 민간 부문의

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국내 산림치유 산업의 부각과 임업인의 경제적 전망

  • Kim, Ji-Hyeon
    • 산림경영
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    • s.212
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    • pp.26-31
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    • 2014
  • 기후변화 대응 및 녹색성장을 위한 산림의 중요성이 대두되고 있는 시대 변화에 발맞추어 우리나라에도 산림치유에 관한 산업이 급부상하고 있다. 2007년부터 산림치유와 관련된 산림청 기획 연구과제가 수행됨에 따라 산림 치유에 대한 본격적인 연구와 정책이 시작되었다. 산림의 다양한 환경요소를 활용해 현대인의 건강을 증진시키는 산림치유(Forest healing)에 대한 국내외 연구사례와 언론보도 등으로 산림치유에 대한 사회적 관심은 최근 10년 사이 그야말로 폭발적인 관심을 끌었다. 지방자치단체의 대부분이 직간접적으로 산림치유와 관련된 정책을 추진하고 있으며, 민간에서도 관련 사업이 활성화되고 있는 것을 쉽게 찾아볼 수 있다. 특히 현 산림청장이 국립대학의 산림치유학과 교수였던 이력을 보더라도 산림치유에 대한 국가적인 기대도 크다는 것을 느낄 수 있다. 최근 산림정과 녹색사업단이 공동 기획한 산림치유 전문지 'ECO HEALING (에코힐링)'의 창간 또한 이러한 사회적 관심과 요구에 부흥하는 일이라 하겠다. 그간 치산녹화에 주력해 우리 산림을 급부상시킨 산림경영인들이 이제는 시대적 요구에 걸맞은 혜안을 가지고 국가 시책과 사회적 요구에 앞서 나가 또 다른 산림 산업의 주역으로서 역할을 해야 할 때가 되었다고 생각한다. 산림치유 산업이 급부상하게 된 이유와 산림의 이로움을 재조명하는 과정을 통해 앞으로의 산림치유 산업의 전망을 살펴보고자 한다.

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