• Title/Summary/Keyword: Urban landscape

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Identifying Urban Heat Island Effects due to Urban Land Use Change

  • Shin Dong-hoon;Lee Kyoo-seock
    • Proceedings of the KSRS Conference
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    • 2004.10a
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    • pp.22-24
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    • 2004
  • The land use has changed rapidly since 1960s in accordance with urbanization in Seoul Metropolitan Region. As a result, the urban microclimate has undergone changes as well. This study aims to recognize trend of the urban heat island change which is caused by land use change during urbanization in large city. Thermal data of Landsat TM images in 1987 and 1999 were for land surface temperature change detection in the study.

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Restorative Effects of Natural Landscape on University Students' Stress Reduction and Cognitive Enhancement (대학생들의 스트레스 해소와 인지향상에 미치는 자연경관의 치유효과)

  • Yi, Young Kyoung
    • Journal of the Korean Institute of Landscape Architecture
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    • v.43 no.6
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    • pp.127-137
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    • 2015
  • Recent research has shown that university students experience severe stress and depleted directed attention due to study, social relationships, and economic dependency. Based on the stress reduction theory and the attention restoration theory, this study aims to investigate the effects of natural landscape on university students' stress and cognitive performance through a wide array of measurements including GSR(galvanic skin responsse), IBI(interbeat interval), ZIPERS(Zucherman Inventory of Personal Reactions), and mental arithmetic test. The restorative effects of natural landscape were compared with those of urban landscape. 128 university students participated in the study, and the data of 120 students was analyzed. The results showed that natural landscape was more restorative in relieving psychological stress and in enhancing cognitive performance than urban landscape, which evidenced the restorative effects of natural landscape. Therefore, it could be proposed that natural landscaping of the university campus contributes to students' stress reduction and cognitive enhancement. But such effects were not found in the two physiological measures(both GSR and IBI). Moreover, it was analyzed that urban landscape had a more beneficial effect than natural landscape for IBI, which might resulted from the participants' characteristics and the study landscape. Specifically, the young age span of the participants(average 23.8 years old) and the very natural setting of the university where they were enrolled might lead to the conflicting results in physiological measures. Also, the urban landscape used in the study had a sense of "scope", which is one of the Kaplan and Kaplan's restorative characteristics. Based on this opinion, it was suggested that future study should investigate the impact of the landscape type and contents as well as the participants' characteristics on the restorative effects of natural landscape.

A Study on Integral System of Public Design in the Context of Local Identity - Focusing on the Landscape Plan and Color Plan of Chungbuk Metropolitan Area - (지역정체성 맥락의 공공디자인 통합체계 연구 - 충북광역도시권의 경관계획과 색채계획을 중심으로 -)

  • Song, Young-Min
    • Korean Institute of Interior Design Journal
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    • v.23 no.5
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    • pp.104-111
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    • 2014
  • This study puts its purpose on presenting an integral system of representative urban landscapes, public design and colors, in practicing urban design in the context of local identity. An integral design of public design that successfully plans and executes local identity, and changes recognition of integral management of urban design, is suggested as followings. Firstly, when the catchment area is divided in metropolitan area, it should be reset according to the natural environment condition regardless of administrative area system like city and county. It is the method to classify the metropolitan area by researching and analyzing geographical condition, weather condition, soil and vegetation in detail and subclassify it by the visual commonness of natural environment. Secondly, it is necessary to access the urban landscape, public design and urban color from the overall aspect emphasizing the plan for each field and local identity. They should be practiced by the role and category of each field on the basis of consistent design strategy and instruction but the cooperation system is required as a process to reinforce and specify the mutual limit. Thirdly, the artificial structure is constructed through artificial adjustment depending on the urban formation process and the development time point. Therefore, it is necessary to pay attention to the rapid urban development, the change speed and the landscape formation of each age. It is necessary to classify the type of artificial landscape by age and form similarity and separate the area that should be generalized and controlled by entire metropolitan area form the area that should be specialized by basic local government.

Identifying the Change of Urban Stream Bed Using Real-time Beacon DGPS (실시간 beacon DGPS를 이용한 도시하천의 하상변화 파악)

  • Lee, Kyoo-Seock;Lee, Sang-Hwa;Shin, Dong Hoon;Ahn, Seung-Mahn;Suh, Byung-Key
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.6 no.1
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    • pp.51-56
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    • 2003
  • The urban stream include the channel and its adjacent banks, or hillslopes and it consists of various landscape elements. The riparian ecosystem is important to people. Its water is extracted for irrigation and drinking supplies. Biodiversity and many wetland species are protected here. The riparian ecosystem is diverse and needs to be preserved well. So, it is necessary to measure the features of the urban stream accurately to figure out the change of the riparian ecosystem. However, the traditional Electronic Distance Measurement(EDM) surveying is difficult to measure the curvilinear features of the stream - e, g, angle, curve. The beacon Differential Global Positioning System(DGPS) can handle to measure the curvilinear shape. Therefore, the purpose of this study is to measure the change of the river bed in urban stream accurately using realtime beacon DGPS, and ultimately to provide the basic data for identifying the change of the river ecosystem.

Cooling Effects of Botanical Garden in Urban Campus during Summer (대학캠퍼스 식물원의 하절기 기온저감 효과에 관한 연구)

  • Lee, Sang-Hwa;Lee, Kyoo-Seock;Zheng, Hai-Yan;Jin, Wen-Cheng;Shin, Dong-Hoon;Woo, Chang-Ho
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.11 no.5
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    • pp.72-78
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    • 2008
  • The cooling effects of botanical garden in urban are was investigated at Sungkyunwan University Natural Science Campus and nearby urban area during summer (20/06/2008-30/08/2008). Temperature and humidity data were observed, downloaded and analyzed. After observation single-family residential area (TNH) showed the highest air temperature while botanical garden (ARB) did the lowest one. UHI intensity between TNH and ARB was derived and investigated. The average UHI intensity was $1.5^{\circ}C$ while maximum UHI intensity was recorded at 21 : 20 by $2.29^{\circ}C$, and minimum UHI intensity at 09 : 20 by $0.45^{\circ}C$. Overall the average air temperature of botanical garden was lower to surrounding urban area by $0.5-1.5^{\circ}C$. So it was found out the botanical garden contributes to the cooling effect of the surrounding area as an urban cooling island.

Estimating the urban radiation heat flux distribution and the reduction effect of building and tree shade (건물과 수목의 그림자에 의한 도시의 열 분포 산정 및 저감효과 연구)

  • Park, Chae-Yeon;Lee, Dong-Kun;Yoon, June-Ha
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.21 no.6
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    • pp.1-13
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    • 2018
  • Mapping radiation heat flux of urban area is essential for urban design and landscape planning. Because controlling urban geometry and generating green space are important urban design strategies for reducing urban heat, urban planner and designer need to recognize the micro urban heat distribution for adequate urban planning. This study suggests a new methodology for mapping urban radiation heat flux in a micro scale considering buildings and trees' shade. For doing that, firstly, we calculate net radiation for each urban surfaces (building, road (not shaded, building shaded, tree shaded), ground (not shaded, building shaded, tree shaded), tree (not shaded, building shaded)). Then, by multiplying the area ratio of surfaces to the net radiation, we can obtain the radiation heat flux in micro-scale. The estimated net radiation results were found to be robust with a $R^2$ of 90%, which indicates a strong explanatory power of the model. The radiation heat flux map for 12h $17^{th}$ August explains that areas under the building and tree have lower net radiation heat flux, indicating that shading is a good strategy for reducing incident radiation. This method can be used for developing thermal friendly urban plan.

An Evaluation of Rural Landscape and Comparative Analysis in Accordance with Space Types : Focused on Residents and Visitors of Seondong Region, Gochang-Gun, Jeollabuk-Do, Korea (공간유형별 농촌경관 평가 및 비교 분석 - 전북 고창 선동권역의 주민과 방문객을 대상으로 -)

  • Baek, Jong-In;Ban, Yong-Un;Woo, Hye-Mi;Choi, Na-Rae
    • Journal of Korean Society of Rural Planning
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    • v.16 no.4
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    • pp.1-11
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    • 2010
  • This study has intended to evaluate rural subjective landscape through participation of residents and visitors according to space types, and to perform comparative analysis of evaluation results between residents and visitors. This study has employed a survey method for which 58 residents of 8 villages within Seondong region at Gochang-gun and 70 visitors to Green Barley Field Festival in the target region have participated. 42 landscape view points were selected according to landscape scopes and space types, and then the preference was evaluated using landscape adjectives after showing pictures already taken for each landscape view point. This study has found the following results. First, whereas residents gave high points to natural landscape and artificial one at the historical culture areas in comparison with other landscape scopes, visitors gave them low points on the other hand. Second, visitors evaluated the cultivated area among space types of mixed landscapes with high value. Third, based on t-test for comparative analysis, the statistically significant differences of evaluation results appeared at 6 places among 8 natural landscapes, 3 places among 12 artificial landscapes, and 3 places among mixed landscapes.

Research on the Accessibility of Urban Green Space Based on Road Network- A Case Study of the Park Green Space in City Proper of Nanjing

  • Fan, Yong;Zhao, Ming-yuan;Ma, Lin;Zhao, Lan-yong
    • Journal of Forest and Environmental Science
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    • v.32 no.1
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    • pp.1-9
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    • 2016
  • Accessibility of urban green space, as an important index of evaluating the service level of urban green space, not only shows the resident's access to green space, but also reflects the environment quality of urban living. Since the quantity, area and space distribution of the patches in urban green space directly affect the function of urban green space and the quality of urban environment, the research on the accessibility of urban green space holds great significance to improve the service of urban green space and the living environment quality. Based on GIS software, this research uses the road network and the population distribution data of Nanjing's city proper to conduct quantitative analysis of the accessibility of park green space and the convenience for residents to travel under different forms of transportation. After the case analysis, the author tests the application of road network in studying the accessibility of urban park green space and proposes a GIS-based method to study the accessibility and the rational layout of urban green space.

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

  • 이명우
    • Journal of the Korean Institute of Landscape Architecture
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    • v.32 no.1
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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.