• 제목/요약/키워드: 옥상

검색결과 552건 처리시간 0.02초

옥상녹화시스템에서 수분 조건에 따른 섬기린초의 광합성 특성 (Photosynthetic Characteristics of Sedum takevimense on Various Moisture Conditions in a Green Roof System)

  • 이홍;강태호
    • 한국조경학회지
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    • 제41권6호
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    • pp.140-146
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    • 2013
  • 본 연구는 휴대용 광합성측정장치(CIRAS-2, PPS, UK)를 이용하고, 토양 수분조건에 따른 섬기린초의 생리특성을 파악하였다. 섬기린초의 광합성 속도, 식물수분이용효율, 호흡속도 등 측정을 통하여 섬기린초의 생장에 가장 적합한 광도와 토양 수분범위를 명확하게 파악하였다. 광도에 따른 광합성 속도가 증가하였고, $600{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$ 경우에서 최고점에 도달한 후 그 이후 감소하는 경향을 나타났다. 토양 수분 조건에 따른 섬기린초의 광합성 속도과 식물수분이용효율은 수분함량 11.31%에서 가장 높은 값을 보였으며, 호흡속도는 수분함량 7.91%에서 가장 높은 값을 나타냈다. 그 결과에 의하면, 섬기린초는 가장 적합한 광도 범위가 $600{\sim}1,200{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$이고, 수분 범위가 7.09~11.31%이다.

강우시 지붕유출수의 EMCs 및 특성비교 (Characteristics of EMCs for Roof Runoff)

  • 홍정선;;;김이형
    • 한국습지학회지
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    • 제14권4호
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    • pp.657-665
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    • 2012
  • 각종 개발사업은 불투수층의 증가를 야기 시켜 자연적 물 순환 왜곡과 함께 비점오염물질의 유출을 증가시킨다. 개발로 인한 환경생태수리학적 영향을 저감하고 건전한 물 순환을 구축하기 위해서는 오염물질의 함량이 적은 유출유량에 대해서는 이용(use)을 고려해 볼 만하며, 오염물질의 함량이 높은 유량에 대해서는 조경공간에서 처리 후 저류, 침투 또는 증발산을 고려하여야 한다. 본 연구는 지붕빗물유출수의 상대적 오염도를 평가하여 이용가능성을 검토하고, 평균 EMC 산정을 위한 비용 효율적 적정 모니터링 기법을 제안하고자 수행되었다. 지붕유출수의 오염도는 도로와 주차장에 비해 오염물질별 3배에서 13배 정도 낮은 것으로 조사되었으며, 나뭇잎, 담배꽁초 등의 협잡물과 바람의 영향으로 인한 오염물질의 대기침적 및 옥상구조물 등이 주요 오염원인 것으로 나타났다. 비용 효율적 모니터링 기법 연구결과 평균 EMC를 보이는 시료는 유출 발생 후 약 15분 경인 것으로 나타났으며, 최소 8회 이상의 강우사상에 대한 모니터링이 수행되어야 평균 EMC를 산정할 수 있는 것으로 나타났다.

가스폭발 사고와 관련된 국가배상 사례의 분석 (Analysis of A Gas Explosion-Related State Compensation Case)

  • 이의평
    • 한국재난정보학회 논문집
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    • 제16권1호
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    • pp.44-59
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    • 2020
  • 이 논문에서는 2층 건물 지하층의 다방에서 가스냄새가 난다고 119신고가 되어 소방대원들이 출동하여 옥상에 있는 LPG 가스통들의 밸브를 직접 잠그고 지하층 다방의 중간밸브의 잠금 상태를 확인하고 현장에 도착한 가스공급 및 설치 업자에게 안전조치를 취하도록 요구하고 철수한 후 7분 만에 가스폭발사고가 발생하여 2명이 사망하고 21명이 부상을 입은 사례를 분석하고 있다. 법원은 가스폭발사고의 원인이 규명되지 아니하였으므로 가스공급 및 설치 업자와 한국가스안전공사에 배상 책임을 물을 수 없고 안전조치를 하지 않고 철수한 소방기관에게만 배상책임이 있다고 판결하였다. 그러므로 가스가 누설된다고 119신고가 되는 경우에 출동한 소방대는 가스 밸브를 잠그고 사람들을 대피시키거나 접근하지 못하게 하고 환기를 시키는 등 안전조치를 하고 화재나 폭발가능성이 없음을 확인한 후 철수해야 한다.

닭과 소의 사체에 유인되는 진드기류 (Acari Attracted to Carrion of Chicken and Cattle)

  • 임채석;이원구
    • 한국토양동물학회지
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    • 제10권1_2호
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    • pp.16-21
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    • 2005
  • 2002년 9월부터 2003년 12월까지 경남 진주시 경상대학교 인근의 야산, 초지, 하천변, 온실, 건물옥상, 논 및 채소밭에서 닭과 소의 사체를 매장하거나 노출 설치하여 유인되는 진드기류를 채집하였으며 동정 한 결과 다음과 같이 7종을 확인하였다. Suborder Ixodida 참진드기 아목 Family Ixodidae 참진드기 과 1. Haemaphysalis longicornis Neumann, 1901 작은소참진드기 Suborder Mesostigmata 중기문 아목 Family Machrochelidae 큰집게좀진드기 과 2. Macrocheies muscaedolnesticae(Scopoli, 1772) 파리큰집게좀진드기 3. Holostaspella ornata(Berlese, 1904) 무늬파리응애(국명 신칭) Family Ascidae 떠돌이응애 과 4. Protogamasellus micus(Athias-Henriot, 1961) 미카응애(국명 신칭) 5. Lasioseius sugawarai Ehara,1964 화살응애 6. Proctolaelaps sp. Suboder Prostigamta 전기문 아목 Family Erythraeidae 7. Abrolophus sp. 그 중 가장 흔한 것은 파리큰집게좀진드기(31.8%)와 미카응애 (28.2%)이었고, Holostaspella ornata (Berlese 1904)와 Protogamasellus micus(Athias-Henriot 1961)는 한국 미기록종이다.

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여대생의 의복설계를 위한 상반신 체형 분류 및 특성 (Classification and Characteristic of Upper Body for the Construction of a College Women's Clothing)

  • 심정희;함옥상
    • 한국의류학회지
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    • 제22권3호
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    • pp.321-332
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    • 1998
  • The purpose of this study is to provide basic data for more functional and more fitting clothing construction. The subjects were college women aged from 18 to 25 in June, 1997. Data were collected by anthropometry and photometry and analyzed by the characteristic of the upper body- The results are as follows: 1. After analyzing direct anthropometric data, 1 have analyzed the data by the characteristic in each somatotype, classified them and I have had 5 groups. Group 1 with middle height and standard type, group 2 with great height and standard type, group 3 with low height and slim type, group 4 with middle height and fat type, and group 5 with low height and a little fat type. 2. After analyzing indirect photometric data, 1 have analyzed them by the characteristic and I have had 4 groups. Group 1 with lean back type, group 2 with sway back type, group 3 with straight type and group 4 with bend forward type. 3. Through the mutual corresponding relation in the 5 groups classified with direct anthropometric measurement and the 4 groups classified with indirect photometric mea- surement, direct-group 1 comes the most corresponding to indirect-group 2, comes second to indirect-group 4, and comes third to indirect-group 1. Direct-group 2 comes the most corresponding to indirect-group 4, direct-group 3 comes the most corresponding to indirect- group 1, direct-group 4 comes the most corresponding to indirect-group 3, and direct-group 5 comes the most corresponding to indirect-group 1.

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노년층여성(老年層女性)의 활동량(活動量)에 따른 신체적(身體的) 특성(特性) (The Physical Characteristics of Elderly Women Resulting from activity Amoumt)

  • 함옥상
    • 한국의류학회지
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    • 제17권4호
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    • pp.587-601
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    • 1993
  • In the order to grasp their physical characteristics stemming from activity amount, this paper has divided elderly women into the following group ; those with high activity in the past, those with low activity in the present, those with high activity in the present and those with low activity in the present. The analyses of the body measurements and the pie chart, and the classification of back shapes by taking photographs have led to the following results. 1. The items of depth and girth among the body measurements were significant in the past and the present activity. Those with high activity in the past had smaller sizes in depth and girth than those with low activity. 2. From the pie chart, it was shown that those with high activity in the past had smaller sizes in every index as well as in girth than those with low activity in the past. Both those with low activity in the present and those with medium activity in the present had somewhat large sizes in waist girth, bust girth, hip girth and abdominal girth and in the indices of these items. 3. The classification of back shapes by taking photograpes has shown that those with high activity in the past had the less bent body type-42 percent of Type A and 6.5 percent of Type D. Among those with medium activity in the present, Type A was most outstanding and Type C and Type D were less, This fact shows that those with medium activity in the present keep the most normal body type. This proves that the medium activity of elderly women is desirable for keeping the normal body type.

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옥상정원 활성화에 유용한 토질영양제에 대한 연구 (Study on Several Soil Conditioners for Roof Gardening)

  • 김기은
    • 한국환경복원기술학회지
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    • 제18권4호
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    • pp.63-71
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    • 2015
  • Recently the roof gardening has become very popular and even on the apartment-veranda and on the roofs in high buildings many kinds of vegetables and berries are cultivated. And the demand of the nutritional supplement for the effective plant growth is also increasing. The general urban conditions are to be adapted for plant growth. A different hygroscopic and temperature-conditions after regions, sunshine and wind have strong influences on the plant growth and usually it is not optimal enough. It is because why a nutritional condition in soil for plant growth so important and essential. The usual compound-soil or -fertilizer cannot offer enough quantities of nutrients for plant growth and additional soil conditioner becomes more necessary. There are many kinds of soil conditioners like hydrogel in the market and we studied on Geohumus, Montigel and Geko, which are widely used in Europe and other countries. Water absorption and microbial immobilization with effective microorganisms were tested and compared. The EM solution was identified as bacteria, fungi and azotobacter etc. and they were immobilized at the soil conditioners at first. And the cultivated and immobilized at the soil conditioners EM-solution was added to the plant soil. 1 g of the soil conditioners absorbed ca. 20 g of water. The plant grew 10 cm more, got 3 times more branches and 2 times more fruits in the soil with soil conditioners immobilized with microorganisms. With water addition the plant with both conditions in the soil could stay fresh in comparison to without soil conditioners.

관리조방적 옥상녹화지의 식재식물에 따른 이입식물 출현 양상 (An Occurrence Aspect of Invasive Plants According to Planted Plants in Extensive Rooftop Greening)

  • 한이채;이은희
    • 한국환경복원기술학회지
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    • 제14권3호
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    • pp.71-84
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    • 2011
  • The purpose of this study is to suggest sustainable management of rooftop greening areas. This research is conducted to analyze birth-and-breeding state of planted plants set in extensive rooftop greening, and to examine occurrence aspect of invasive plants and its changes, some features of invasive plants on which can make a basic material for management program of planted plants as a whole. The experimental site is on the rooftop green area of Seoul Women's University which was constructed in 2007. The using method was monitoring rooftop greening areas and analyzing occurrence aspect of invasive plants and its changes by planted plants. Invasive plants were investigated six times overall in April, June, September, November of 2008, and April & June of 2009. As a result, 26 families and 66 species were found invaded. Of which 14 species of Gramineae were invaded the most remarkably. Through these study, it could be inferred some features of invasive plants and major region for it. After the analysis get done about feature of invasive plants, it shows that some invasive plants of all 66 species in total came out, otherwise occurred in a certain time of season. Within the researches eriod showed a higher incidence was found in Artemisia princeps, Conyza canadensis, Coreopsis anceolata, Equisetum arvense, Erigeron annuus, Oxalis corniculata, invasive plant have a lower incidence of plants were identified as Aster koraiensis, Dendranthema zawadsbum. So, when the plan to set a management device regarding occurrence aspect of invasive plants in accordance with planted plants on extensive rooftop greening, it was found that a sustainable & rational management device is desperately needed there for invasive & planted plants of the target area.

옥상텃밭을 이용한 약초재배 시험 (Investigation on the Growth of Several Medicinal Plants in a Rooftop Vegetable Garden)

  • 하유미;김동엽;황동규;민광식
    • 한국환경복원기술학회지
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    • 제17권3호
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    • pp.53-63
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    • 2014
  • This study was carried out to investigate the growth responses of medicinal plants such as Glehnia littoralis, Cryptotaenia japonica, Angelica gigas, Reynoutria japonica, Saururus chinensis, Houttuynia cordata, Ligularia fischeri, and Aralia cordata under 70%-shading and full sunlight conditions on a rooftop condition using artificial soil as a growth media. Glehnia littoralis, Cryptotaenia japonica, Ligularia fischeri, Saururus chinensis, and Houttuynia cordata showed better growth on plant height, leaf length, leaf width, petiole length and leaf number under full sunlight conditions on a rooftop condition. Cryptotaenia japonica and Houttuynia cordata had high value of Hunter's a (red-green) under full sunlight, while had lower value of L(lightness) and b(blue-yellow) than those of 70% shading condition. As an index of plant stress response, Glehnia littoralis, Reynoutria japonica, Houttuynia cordata, Ligularia fischeri showed Fv/Fm values 0.79~0.84 under full sunlight in August, indicating low stress on plant growth. Therefore they seemed to be suitable medicinal plats for rooftop conditions. Ligularia fischeri and Reynoutria japonica showed better growth under 70% shading treatment in August, while showed high growth response under full sunlight conditions in September. The 70% shading treatment was effective for the growth of Angelica gigas, Reynoutria japonica, and Aralia cordata. Angelica gigas and Reynoutria japonica, however, showed better plant growth under full sunlight during summer. The results showed that Glehnia littoralis, Cryptotaenia japonica, Ligularia fischeri, Saururus chinensis, and Houttuynia cordat seemed to be suitable medicinal plants for rooftop garden where there is a full sunlight condition.

RCP 8.5 시나리오와 연동한 저관리형 옥상녹화시스템의 수해방재 성능에 대한 전산모의 연구 (A Study for the Computer Simulation on the Flood Prevention Function of the Extensive Green Roof in Connection with RCP 8.5 Scenarios)

  • 김태한;박상연;박은희;장성완
    • 한국환경복원기술학회지
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    • 제17권3호
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    • pp.1-11
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    • 2014
  • Recently, major cities in Korea are suffering from frequent urban flooding caused by heavy rainfall. Such urban flooding mainly occurs due to the limited design capacity of the current drainage network, which increases the vulnerability of the cities to cope with intense precipitation events brought about by climate change. In other words, it can be interpreted that runoff exceeding the design capacity of the drainage network and increased impervious surfaces in the urban cities can overburden the current drainage system and cause floods. The study presents the green roof as a sustainable solution for this issue, and suggests the pre-design using the LID controls model in SWMM to establish more specific flood prevention system. In order to conduct the computer simulation in connection with Korean climate, the study used the measured precipitation data from Cheonan Station of Korea Meteorological Administration (KMA) and the forecasted precipitation data from RCP 8.5 scenario. As a result, Extensive Green Roof System reduced the peak runoff by 53.5% with the past storm events and by 54.9% with the future storm events. The runoff efficiency was decreased to 4% and 7%. This results can be understood that Extensive Green Roof System works effectively in reducing the peak runoff instead of reducing the total stormwater runoff.