• Title/Summary/Keyword: Changes in Landscape

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Thermal Environment Characteristics of Permeable Block Pavements for Landscape Construction (조경용 투수성 블록 포장의 열환경 특성)

  • Han Seung-Ho;Ryu Nam-Hyong;Kang Jin-Hyoung
    • Journal of the Korean Institute of Landscape Architecture
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    • v.34 no.2 s.115
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    • pp.18-25
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    • 2006
  • This study aims to measure and to analyze the thermal environment characteristics of the various permeable pavement materials such as grass pavement (GREEN BLOCK PARK), stone and grass pavement (GREEN BLOCK STEP), stone pavement (GREEN BLOCK MOSAIC) and wood pavement (WOOD BLOCK) under the summer outdoor environment. The thermal environment characteristics measured in the study includes the changes of surface temperature during the day, changes of the temperature on each pavement layer, and long and short wave radiation of each pavement surface. The experimental condition is based on the data on the hottest temperature (August 5, 2005, $34.0^{\circ}C$) of the you. Some of main findings are: 1) The heat environment was worse on the wood pavements than on the stone pavement. This is mainly due to the low albedo of the wood pavements (0.37) while the albedo value of stone pavements is 0.41. Small heat capacity of the wood pavements also contributes to this difference. 2) The heat environment was worse on the stone pavements than on the turf pavements. This was mainly due to the evapotranspiration of the plant growth layer of the turf pavements. 3) The peak surface temperature was the highest on the wood pavements ($56.1^{\circ}C$). The peak surface temperatures on the stone pavements, the stone-grass pavements and the grass pavements were $43.1^{\circ}C,\;40.1^{\circ}C\;and\;37.9^{\circ}C$, respectively. 4) To improve the thermal environments in the urban area, it is recommended to raise the albedo of the pavements by brightening the surface color of the pavement materials. Further studies on the pavement materials and the construction methods which can enhance the continuous evapotranspiration from the pavements surface are needed.

A study on the origin of Korean herbaeous Inandscape plant names -Focused on Plants named after Chinese and japanese- (한국 초본성 조경식물명에 관한 연구-중국명과 일본명에서 유래된 이름을 중심으로-)

  • Hwang, Joong-Lak;Lee, Ki-Eui;Shin, Woo-Kyun
    • Journal of the Korean Institute of Landscape Architecture
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    • v.25 no.2
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    • pp.20-30
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    • 1997
  • This study compared Korean names of 449 herbaceous landscape plants with Chinese and Japanese names to identify the origin of their Korean names. The results were as follow ; 1. Korean herbaceous plants named after Chinese names were 71 species. They could be classified into 4 typical groups of their origin : plants named from slight or partial changes of Chinese names, plants with a prefix or suffix attached to Chinese names, plants having names translated from Chinese names, and plants with the same names as Chinese. 2. Korean herbaceous plants derived from Japanese names were 378 species. They also could be classified into 4 typical groups of their origin; plants with new names in partial combination of Japaneses and Korean names, plant having names directly translated from Japaneses names, plants with the same names as Japanese, and plants having names erroneously translated from Japaneses names.

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Design Flood Estimation in the Hwangguji River Watershed under Climate and Land Use Changes Scenario (기후변화 및 토지이용변화 시나리오를 고려한 황구지천 유역의 설계홍수량 평가)

  • Kim, Jihye;Park, Jihoon;Song, Jung-Hun;Jun, Sang Min;Kang, Moon Seong
    • Journal of The Korean Society of Agricultural Engineers
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    • v.58 no.1
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    • pp.39-51
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    • 2016
  • Extreme floods occur more often recently as the frequency of extreme storm events increase due to the climate change. Because the extreme flood exceeding the design flood can cause large-scale disasters, it is important to predict and prepare for the future extreme flood. Flood flow is affected by two main factors; rainfall and land use. To predict the future extreme flood, both changes in rainfall due to the climate change and land use should be considered. The objective of this study was to simulate the future design flood in the Hwangguji river watershed, South Korea. The climate and land use change scenarios were derived from the representative concentration pathways (RCP) 4.5 and 8.5 scenarios. Conversion of land use and its effects (CLUE) and hydrologic modelling system (HEC-HMS) models were used to simulate the land use change and design flood, respectively. Design floods of 100-year and 200-year for 2040, 2070, and 2100 under the RCP4.5 and 8.5 scenarios were calculated and analyzed. The land use change simulation described that the urban area would increase, while forest would decrease from 2010 to 2100 for both the RCP4.5 and 8.5 scenarios. The overall changes in design floods from 2010 to 2100 were similar to those of probable rainfalls. However, the impact of land use change on design flood was negligible because the increase rate of probable rainfall was much larger than that of curve number (CN) and impervious area.

Changes of Landscape Pattern and Vegetation Structure in Rural Areal Area Disturbed by Fire (산불지역에서 경관유형과 식생구조의 변화)

  • 이창석;홍선기
    • The Korean Journal of Ecology
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    • v.21 no.4
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    • pp.389-399
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    • 1998
  • this study was focused on the effects of fire on spatial change of vegetation landscape in rural region. Fire types recognized as erown fire, severe surface fire and light surface fire in order of increasing intensity were described in a fire map. GIS was introduced to understand the relationship between fire types and topographic conditions or vegetation types. We also investigated land-use type and regeneration strategies after burning. Fire intensity depended on topographic conditions and vegetation types. Special land-use type in this area was collection of edible mushroom (Tricholoma matsutake). Mushrooms had been obtained from Pinus densiflora forests existing as edaphic climax or managed artificially. Regeneration strategy in burned areas was to make sprouts from burned oak stumps. A higher density and growth rate of sprouts, as compared to those on unburned areas, facilitated vegetation succession from P. densiflora forest to oak forest and consequently led to change of landscape pattern.

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The Plants for Phenology of the Mt. JuWang National Park (주왕산국립공원 식물종의 생물계절성)

  • Kang, Shin-Koo;Kim, Byung-Do;Shin, Hyun-Tak;Park, Ki-Hwan;Yi, Myung-Hoon;Yoon, Jung-Won;Sung, Jung-Won;Kim, Gi-Song
    • Journal of Forest and Environmental Science
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    • v.28 no.4
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    • pp.247-253
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    • 2012
  • The purpose of this study was to conduct phenology monitoring of forest plant species in Mt. JuWang National Park, thereby establish long-term prediction and management system for species susceptible to climate change, and utilize the result as basic materials necessary for conservation of plant genetic resources in accordance with changes in their growth environment. Global Positioning System coordinates were marked on each indicator species and a specific number ticket was provided to each plant. Changes in their blooming time, time of blossoms falling, time of leaves bursting into life, and time of leaves turning, and time of leaves falling were recorded. Investigation was made once per week from April 10 in 2010 to November 30 in 2011 except for the time period between July and August when investigation was made biweekly. The investigated plants concerned 12 kinds-nine species of trees and three kinds of herbs. According to the result of the penology monitoring of Mt. JuWang National Park, their time of leaves bursting into life, time of leaves turning, and time of leaves falling were largely earlier in 2011 than in 2010. However, it is hard to say that it is due to the factor of climate change. Long-term collection of climate data and continuous monitoring of plant phenology are considered necessary in order to examine correlation between climate change and seasonal change patterns of plants.

A Study on the Landscape Characteristics for Palkyung of the West Coast and the Islands in Saemankeum Area

  • Huh, Joon
    • Journal of the Korean Institute of Landscape Architecture
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    • v.38 no.5_2
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    • pp.176-185
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    • 2010
  • This study aimed to clarify meanings of Palkyung(八景) in different regions which can be considered as the prototype of the region's cultural landscape and also to confirm the change process by pointing out landscape characteristics and finally, to provide a foundation for the regions to establish their own identities, so they could be provided against the changes from developments in other areas. The relationship between the characteristics of landscape values and the components of 32 Palkyung in 4 places those are Gogunsan, Wido, Gunsan and Byunsan under Saemankeum area have been analyzed and evaluated from operational point of view to clarify the structure of the landscape concept. Some important differentiation points would be the sunset of the West Sea, sailing boats and the sceneries related to fishing as they are in the West Sea Islands and the coastal regions; and it clearly reflects the local customs and the characteristics of the landscapes. Each of Gogunsan, Wido and Gunsan Palkyung has 2 distance views with 4km of visible area while Byunsan Palkyung has only 1; and it is considered that because it is mountain area. Most of the Byunsan Palkyung has close range views except for Seohaenakjo and there are around 4 close range views in other areas. There were 4 landscape dominated influence areas each in Gunsan and Byunsan, which means that there are comparatively more close to middle range views. Moreover, each region contains 2 to 3 views of psychological influence but as mentioned, Byunsan has only 1 view of psychological influence. Therefore it is very important and valuable thing to consider the scenic relationship, preservation and reconstruction of Palkyung when planning the project.

A Study of Streetscape Evaluation Methods Using Computer Animation -A Comparison of Static and Dynamic Simulation Methods- (컴퓨터 애니메이션을 이용한 가로경관의 평가기법 연구 -정적 및 동적 시뮬레이션 기법의 비교-)

  • 김충식;이인성
    • Journal of the Korean Institute of Landscape Architecture
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    • v.26 no.4
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    • pp.1-13
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    • 1999
  • Previous research for visual assessment of streetscape employed static simulation methods to represent future landscape. However, streetscape is experienced sequentially, and thus dynamic simulations can be more effective. This study tried to adopt computer animation in the evaluation of streetscape, and examined its effects and possibilities. Three development scenarios for the redevelopment districts of Sokong-Ro and Banpo-Ro in Seoul were designed, and simulations were produced by three methods-photo-retouching, computer still image, and animation. A preference questionnaire was asked to 69 university students, and the effects of simulation methods on visual preference were examined. In addition, the frames of the animation were reclassed to identify the visibility of physical elements. The relationships between the visibility and visual preference were analyzed. The results showed that visual preference can be explained by three factors-Amenity, Tidiness, and Variousness-that account for 62.4% of the total variance, and the Amenity showed the highest proportion: 36.0%. Among the three simulation methods, animation showed the largest difference in preference for the most important factor(Amenity), and yielded the highest correlation between visibility of physical elements and Amenity. This result demonstrated that dynamic simulations can provide more accurate observation of visual changes, especially because the simulated landscape is experienced sequentially. The results also revealed that the sequential change in the visibility of physical elements can be examined easily and precisely by animation. This benefit of animation enables analysts to identify the points where the landscape varies the most, and thus visual preference should be evaluated.

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A Study on the Changes Characteristics of Planting Tree Species in Landscape space of Ojukheon, Gangneung-si (강릉 오죽헌 조경공간 내 식재 수종 변화 특성에 관한 연구)

  • Sim, Jae-Hyuck;Lee, Hyeon-Bin;Yeum, Jung-Hun
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.42 no.2
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    • pp.12-19
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    • 2024
  • The purpose of this study was to provide basic data for the systematic management of external landscaping spaces by analyzing the characteristics of changes in planting trees for about 50 years from 1976 to Ojukheon in Gangneung. Information on past planting species was confirmed based on the landscape plan of the Ojukheon Cleanup Site in 1976 and the current status plan of the Ojukheon Tree in 2000, and analyzed in overlap with the results of field surveys. From 1976 to 2023, a total of 18 additional species of trees such as Celtis sinensis, Toona sinensis and Lagerstroemia indica were planted or the tree species name was unified, and three species were not identified. It was confirmed that there was a change in the planting species by Aojegag, Main house, Ojukheon, and Munseongsa in terms of traditional landscape space. And the problems were derived regarding species name (correct name and synonym), lack of information on planting and removal, and foreign species planting by period. In the future, it is judged that systematic history management based on the tree management register, including basic planting information on external landscaping spaces in national cultural properties, is urgent.

Changes of Landuse for Eight Years(1999~2007) in Greenbelt Area, Seoul (서울시 개발제한구역 8년간(1999~2007년) 토지이용 변화 연구)

  • Choi, Jin-Woo;Lee, Kyong-Jae;Noh, Tai-Hwan;Min, Sung-Hwan
    • Journal of Environmental Science International
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    • v.19 no.8
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    • pp.1025-1034
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    • 2010
  • This study was to analyze changes of landuse and environmental value of cultivate land for eight years from 1999 to 2007 year in greenbelt area, Seoul. Greenbelt area decreased from $166.82\;km^2$ in 1999 to $156.50\;km^2$ in 2007 according to removal policy. Regarding landuse status in 2007, forest field area accounted for 64.16 %, dry paddy area 4.10 %, facilitated farming area 3.82 %, rice paddy area 2.95 % out of total greenbelt area. Cultivate land occupied wide spaces with dry paddy area, facilitated farming area, tree nursery in Seocho-gu, Gangnam-gu and Gangdong-gu. Changes of landuse were serious in Seocho-gu. The trend of changes of landuse for eight years is that rice paddy area was changed dry paddy area by laying the ground and dry paddy area was changed facilitated farming area for intensive agriculture. Rice paddy area could change without permission by laying the ground in below 50 cm height and it was changed to green houses due to increase in profit and modern policy of agriculture. It is nessary to monitor landuse regularly, improve regulation for change of landuse, compensate a property loss for maintaining environmental value in greenbelt area.

Design of North Seoul Dream Forest Based on Traditional Village Design Methods (전통마을 배치기법에 따른 북서울꿈의숲 설계)

  • Choi, Shin-Hyun
    • Journal of the Korean Institute of Landscape Architecture
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    • v.37 no.6
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    • pp.66-72
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    • 2010
  • Seoul City planned "Dreamland" to be in harmony with the huge woods and park. It is located in the life zone in the northern region of Seoul as part of an extensive park development plan that the municipal government has promoted. The space configuration technique of the aesthetics of "Empty" rather than "Full" gives the potentiality to cope with the uncertain changes in the city. Furthermore, the traditional element of the mountain landscape of Seoul was introduced and appropriated as the axis of the landscape for landscape configuration. In that configuration, the images of tree, sky, wind, water and soil are elegantly unfolded like a landscape painting. The purpose was to create a dominant landmark in the city landscape with the figures of Korean mountains and hills which were differentiated from architectural landmarks in the western cities by making nature, which was excluded from the urbanization plans up to now, an important subject for consideration. As a result, this study madethe space in a park including existing yards and streets in a city have the traditional hierarchy by applying the facility arrangement technique and elements extracted from Korean space types and traditional landscape concepts. Moreover, the North Seoul Dream Forest was designed by pursuing diversity and potentiality in the experience of space using a large open field in a city.