• 제목/요약/키워드: Urban tree

검색결과 457건 처리시간 0.023초

Performance-based Wind-resistant Design for High-rise Structures in Japan

  • Nakai, Masayoshi;Hirakawa, Kiyoaki;Yamanaka, Masayuki;Okuda, Hirofumi;Konishi, Atsuo
    • 국제초고층학회논문집
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    • 제2권3호
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    • pp.271-283
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    • 2013
  • This paper introduces the current status of high-rise building design in Japan, with reference to some recent projects. Firstly, the design approval system and procedures for high-rise buildings and structures in Japan are introduced. Then, performance-based wind-resistant design of a 300 m-high building, Abeno Harukas, is introduced, where building configuration, superstructure systems and various damping devices are sophisticatedly integrated to ensure a higher level of safety and comfort against wind actions. Next, design of a 213 m-high building is introduced with special attention to habitability against the wind-induced horizontal motion. Finally, performance-based wind-resistant design of a 634 m-high tower, Tokyo Sky Tree, is introduced. For this structure, the core column system was adopted to satisfy the strict design requirements due to the severest level of seismic excitations and wind actions.

담장허물기로 인한 주택지 외부공간의 열환경 평가 (Evaluation of Thermal Environment of External Space following the Fence Demolition Campaign in Detached Housing Area)

  • 류지원;정응호;시미즈 아키;오상학;호야노 아키라
    • 한국주거학회논문집
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    • 제23권1호
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    • pp.19-26
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    • 2012
  • This study examines how fence demolition may change the thermal environments of external spaces of houses and suggests what factors need to be considered when a fence is demolished. The results of the research are summarized as follows. In terms of the surface temperature, there was no significant difference in all time plots after the removal of all materials. However, applying greening methods (changing the surface materials, planting trees, and building a green roof following fence demolition) could lower the surface temperatures, calling for proper plans for various greening methods. The MRT results indicates that walls block solar radiation and provide shade, reducing radiant heat from roads and surrounding structures during the daytime when solar radiation directly effects surface temperatures. Also, the application of greening methods such as planting vegetation and trees could have shading and evapotranspiration effects, leading to a lower temperature distribution. The HIP results were similar to the MRT results. They indicated that walls block solar radiation within the residential sections and provide shade, resulting in a lower temperature distribution during the daytime. However, areas where greening methods such as a green roof or tree planting were applied showed $1{\sim}2^{\circ}C$ difference in temperature distribution.

탑골공원 설계 (Design of Pagoda Park, Seoul)

  • 김성균
    • 한국조경학회지
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    • 제29권2호
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    • pp.42-49
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    • 2001
  • This design proposal was presented to a design competition for renovation of the Pagoda Park, located in Chongro-2ga, Chongro-gu, Seoul, where the first ˝Manse˝ (hurrah) Movement fighting against Japanese colonization, broke out on March 1st, 1919. The park has been considered to be the first modern park in Korea also. The objectives for the design were to make a sacred place to commemorate the 3.1 ˝Manse˝ Movement, to preserve and symbolically memorialize historic remains of the old ˝Wongaksa˝ Temple, an to provide natural and rest areas for citizen. For the space composition, three axes symbolic of, ´freedom and independence´, ´mercy´, and ´nature´, were created. For the freedom and independence axis, exiting facilities, such as statures and monuments related to the 3.1 Movement, were relocated centering around the octagonal pavilion, which was the starting point for the movement, to give order of the site. For the ercy axis, symbols of traditional temple structures, such as, ´Iljugate´-´Pian bridge´-´Chongwang gate´-´Haetal gate´-Pagoda-Buddhist sanctum, were created to symbolize the temple remains and placeness. For the nature axis, tree groves, walking trails, and rest areas for citizen were provided around the site. As a whole the design provided structural orders from secular spaces outside to sacred spaces inside.

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인천해안지역의 식물군집구조 분석을 통한 해안림 식재모델 연구(I) - 곰솔림과 소나무림을 대상으로 - (The Planting Models of Maritime Forest by the Plant Community Structure Analysis in the Seaside, Incheon - A Case Study on Pinus thunbergil Community and P. densiflora Community-)

  • 권전오;이경재;장상항
    • 한국조경학회지
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    • 제31권6호
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    • pp.53-63
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    • 2004
  • Planting models for restoration forest on the seaside have been demanded because coastal reclaimed land has increased for habitation sites, industrial complexes and new towns on the west seaside of Korea. The planting models have to consider endurance for bad environmental conditions in order to make a role to protect the urban space against the extreme seaside environment. The dominant species, relative impotance value, individuals and species number were analysed in natural forests that were exposed to extreme seaside conditions in Deokjeok island and Younghung island, Incheon. The native species such as Pinus thunbergii and Pinus densiflora, which survive on the seaside, were mainly recommended because the coastal reclaimed land had extreme environmental conditions. Stable vegetation structures could be made by multi-layer planing by using these species. A diverse vegetation community could be made according to these planting models. The maritime forests made by these planting models might be more effective for environmental adaptation and a windbreak forest than alone tree, and the young trees below 3m height could easily adapt to these conditions.

국제규범과 국내 법제도의 문화재 공간 보호개념 비교연구 (A Comparative Study of International Norms and Korea Legal system related to the Concept of Spatial Safeguarding in Cultural Heritage)

  • 한나래
    • 대한건축학회논문집:계획계
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    • 제35권4호
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    • pp.103-114
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    • 2019
  • From the "Recommendation on the Safeguarding of the Beauty and Character Landscapes and Sites"(1962) to the "ICOMOS-IFLA Document on Historic Urban Public Parks"(2017), 'the spatial safeguarding Concept of Cultural Heritage' in International Norms has manifested in various types. In this article, 24 types of International Norms that reflect 'the concept of Spatial Safeguarding in Cultural Heritage' and Korea legal system such as 'Historical and Cultural Environment' were analyzed in the following two aspects. The first aspect is 'Object Type to safeguard' and analyzed in four types such as 'Groups of buildings(A type)', 'Surrounding, Environment, Setting(B type)', 'Cultural landscape(C type)', 'Historic area and Historic towns(D type)'. The second aspect is 'Safeguarding value(analysis elements)' and analyzed in the following tree elements ; 'Landscape value' such as skyline, 'Intangible value' such as the functions of cultural customs, and 'Ecological value' that should preserve life itself. As a result of the study, 'the concept of Spatial Safeguarding in Cultural Heritage' including C and D type and three value which are trends of International Norms are reflected in Korea legal system, and concrete safeguarding methodology is also implemented systematically in case of ecological value. However, intangible values are not specific to the methodology in both International norms and Korea legal systems, and should be developed in the future.

부산광역시 장산 일대의 관속식물상 (Vascular Plants of Mt. Jangsan in Busan Metropolitan City)

  • 오현경;김은옥;최송현;유주한
    • 한국환경복원기술학회지
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    • 제24권3호
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    • pp.49-68
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    • 2021
  • This study was to carried out to survey and analyse the vascular plants of Mt. Jangsan, Busan Metropolitan City, South Korea. The vascular plants were surveyed from June to October, 2019. The numbers of vascular plants in this site were 497 taxa and comprised of 106 families, 306 genera, 454 species, 7 subspecies, 29 varieties, 5 forms and 2 hybrids. The planted species were 16 taxa including Ginkgo biloba, Cedrus deodara, Zea mays and so on. In this study, 309 taxa were identified, including Selaginella rossii, Cyrtomium falcatum, Cephalanthera falcata and so on. The rare plants were 4 taxa including Hololeion maximowiczii(EN), Ottelia alismoides(LC), Iris ensata Thunb. var. spontanea(LC) and Sagittaria trifolia(DD). All rare plants were found in Jangsan Wetland. The Korean endemic plants were 9 taxa including Populus × tomentiglandulosa, Hemerocallis hakuunensis, Hosta minor and so on. The floristic target species were totally 53 taxa, which were 2 taxa of grade IV, 11 taxa of grade III, 6 taxa of grade II and 34 taxa of grade I. The alien plants were 58 taxa including Rumex crispus, Ipomoea purpurea, Helianthus tuberosus, Vulpia myuros and so on.

도시 표토 토양수분 모니터링을 통한 가로수 고사 원인 분석 (Analysis of cause of street tree death through urban topsoil and soil moisture monitoring)

  • 정기은;홍은미;양재의;김혁수
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2021년도 학술발표회
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    • pp.180-180
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    • 2021
  • 가로수는 「도로법」 제11조에 따른 도로(고속국도를 제외한다)와 보행자전용도로 및 자전거전용도로 등 대통령령으로 정하는 도로의 도로구역 안 또는 그 주변지역에 심는 수목을 말하며, 도시의 가로수는 기후조절효과 및 대기오염 정화효과 등을 가질 뿐 아니라 도심지 내에 녹색을 도입하고 도시경관을 구성하는 주요 요소이다. 전국 각 시도에서는 가로수 조성사업을 지속적으로 추진하고 있다. 하지만 몇몇 도시에서는 적절하지 않은 가로수 관리로 인해 가로수가 말라죽는 현상이 증가하고 있다. 이에 가로수 고사 현상을 감소시키기 위하여 토양수분과 토양온도를 측정하여 가로수 피해와 연관성을 조사할 필요성이 있다고 판단하였다. 본 연구는 춘천시에서 진행하였으며, 일반 가로수와 현재 가로수 고사로 문제가 되고 있는 3 모니터링 지점을 선정하고, 토양수분 센서를 5, 15, 40 cm 깊이에 설치하였다. 센서를 이용하여 토양수분과 지온, EC 모니터링을 실시하였다. 토양수분 모니터링 자료를 활용하여 토층별 토양수분 소비량 산정을 하고, 현장 토양시료를 채취하여 물리·화학적 특성을 분석하였다. 또한 가로수 증발산량 산정 및 토층별 토양수분 소비량과 소비패턴을 비교하였다. 본 연구 결과를 향후 RZWQM(Root Zone Water Quality Model) 모델의 기초자료 및 시나리오 구성에 활용될 수 있으며, 모니터링 및 모델링 결과를 활용하여 가로수 및 도시 표토 기능 위협 요인을 분석에 활용 될 수 있다.

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New distribution record of northern lineage plant of Stellaria filicaulis(Caryophyllaceae) from South Korea

  • Dong-Pil Jin;Chae Eun Lim;Sunhee Sim;Jin Dong Lee;Inbae Lee;Kwuidong Jung;Jung-Hyun Kim
    • Journal of Species Research
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    • 제12권4호
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    • pp.299-306
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    • 2023
  • A northern lineage plant, Stellaria filicaulis (Caryophyllaceae), was newly found in Yeoncheon-gun, Gyeonggi-do of South Korea. This species is distributed in China, Japan, Korea, Mongolia, and Russia. On the Korean Peninsula, St. filicaulis, however, has been known to grow in North Korea. Species identification was confirmed using morphological characteristics and DNA sequence data, while comparing with materials obtained from herbarium specimens. Stellaria filicaulis is distinguished from St. longifolia by having smooth surface of stem, petals about twice longer than sepals. On the neighbor-joining tree, St. filicaulis formed a clade, and the species is closely related to St. longifolia of the Parviflorae clade. Details of the morphological characters, the type specimens, voucher specimens data, and photographs of St. filicaulis in South Korea are presented. In addition, it is likely that a new habitat will be found by plant biodiversity field surveys through the middle part of the Korean Peninsula. Further research is needed to determine its population size, distribution, and threats, as well as identify appropriate locations for conservation collection of germplasm.

도시하천 야생조류의 서식 기능 향상방안 연구 - 서울시 성내천을 대상으로 - (A Study on the Improvement Plans for the Wild Bird Habitat in an Urban River - A Case Study on Seongnaecheon(Stream) in Seoul -)

  • 박군숙;박석철;한봉호
    • 한국환경복원기술학회지
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    • 제23권3호
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    • pp.23-43
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    • 2020
  • The purpose of this paper is to create ecological values for urban rivers. For this, the paper looks into river bed structures and how nearby lands are used. This study was performed to set the specific sections for analysis through a field investigation of the infrastructure conditions, surrounding land use, and the inter habitat structure of Seongnaecheon(Stream). A total of 780 individuals from 31 species of wild birds appeared in Seongnaecheon(Stream). According to foraging guild's habitat, there were 9 species of water, 8 types of water edges, 5 types of crowns, 5 types of shrubs, 2 types of tree trunks, 2 types of birds of raptors, and 355 individuals of water, 243 shrubs, 90 crowns, 84 water edges and 5 raptors. Many water birds were observed at the site where the Seongnaecheon(Stream) sandy plains and wetland herbaceous area were developed and the open water was secured. Most of the forest birds appeared on levee slope connected with forest around and riverside with fewer facilities for use. The species diversity index of Shannon, the entire section of Seongnaecheon(Stream), was 2.2697 and the downstream ecological landscape conservation area of Seongnaecheon(Stream) was found to be useful as a habitat for wild birds in the city compared to other sections. Some sections of Seongnaecheon (Stream) had low species diversity index due to lack of green space and surrounding urbanization areas. In choosing target species, I researched the special features of the habitats and the habitation structure of wild birds in each zone. Regarding detailed plans, by classifying the breeding place & roosting site and the roosting site & shelter that took account of the inhabitation characteristics of the target species in different sections, this paper suggested the major plant species and multilayer planting structures. Moreover, this study proposed the development of habitats for water birds and forest birds along with the connection of the green network for improving the Eco-corridor linkage and inhabitation features in Seongnaecheon(Stream).

농촌지역 가로특성이 가로 녹시율에 미치는 영향 - 예산군을 중심으로 - (The Impact of Street Characteristics on the Streetscape Greenness Index in Rural Area - Focused on Yesan-gun -)

  • 이혁균;조용현;김태종
    • 한국조경학회지
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    • 제47권6호
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    • pp.78-86
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    • 2019
  • 본 연구에서는 도시와는 특성이 다른 농촌의 공간적 범위를 대상으로 이용빈도가 높은 가로에서 주민들이 체감하는 녹시율을 분석하고, 가로특성을 조사하여 가로특성이 녹시율에 미치는 영향을 알아보고자 하였다. 충남 예산군을 대상으로 녹시율 분석을 위해 가로 유형을 분류한 후, 인공녹지, 자연녹지, 생산녹지를 포함한 가로 녹시율과 가로 내 가로수만을 대상으로 한 가로수 녹시율을 비교 분석하였다. 그 결과, 예산군의 가로 녹시율은 국도가 15.93%, 지방도는 26.14%, 군도는 28.28%, 면도는 24.72%, 리도는 40.70%, 농도는 32.78%, 도시계획도로는 18.36%로 분석되었고, 가로수 녹시율은 국도는 5.02%, 지방도는 9.10%, 군도는 8.55%, 면도는 4.51%, 리도는 6.92%, 농도는 2.56%, 도시계획도로는 9.39%로 분석되었다. 가로의 특성이 녹시율에 미치는 인자를 알아보고자 가로변 토지이용 형태, 차선의 형태, 가로수의 유·무, 보도의 유·무를 분석하여 녹시율에 미치는 영향을 살펴보았다. 그 결과, 가로변 토지이용, 차선의 형태, 보도의 유·무가 가로 녹시율과 가로수 녹시율에 영향을 미치는 것으로 확인되었으며, 타 연구들과의 비교를 통해 예산군의 녹시율 개선이 필요함을 도출하였다.