• Title/Summary/Keyword: Landscape structure change

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An Evaluation of the Streetscape According to the Change of Moving Speed -Through the Experiment of the Virtual Reality- (이동속도의 변화에 따른 가로경관의 평가 -Virtual Reality를 이용한 실험-)

  • 정재희
    • Journal of the Korean Institute of Landscape Architecture
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    • v.28 no.5
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    • pp.15-25
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    • 2000
  • The purpose of this paper is to examine the visual evaluation structure about the formal changes of streetscape by the different moving speed in two alternative control plans for the building height and the setback regulation. The virtual reality system is applied to the experimental tool. Eighty-two experimental models are made in consideration of the height and the setback of the building regulation cased by Midou-suji street in Osaka City, Japan. and ten typical models are selected by pre-experiment. Since the changes of the landscape structure consists of the height and the setback of the building, four the evaluation items are set: grade of continuity, order, openness, preference. As there are eighty-two landscape models which are too many to be applied in this experiment, ten role models are drawn out and used in this experiment. The mean difference test, discriminant analysis, and multiple linear regression methods had been used for the statistical analysis methods. The results of this study are as follows; 1) It is found out the fact of the difference evaluation structure amount experiments models. 2) From the sketch analysis and interview, it is found out difference cognition structure by the moving speed and alternatives. 3) From the discriminant and regression analysis, it is found out that the evaluation value about continuity becomes low by the moving speed change from walking speed to driving speed. We suggest that continuous experiment should be made with a variety of groups and models, and general and universal results should also be come out of the experiments above.

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A Study on a Landscape Structure as a Change of Impervious Cover Rate in the Osan-cheon Watershed (오산천 유역의 불투수면 비율 변화에 따른 경관구조 분석)

  • Jang, Su Hwan
    • Journal of Environmental Impact Assessment
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    • v.17 no.5
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    • pp.289-297
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    • 2008
  • An impervious cover is one of most important factors which effect on a water body environment in a watershed. There are many researches on the impact of an impervious cover on water quality, quantity and ecosystem and most of these researches have been focused on an impervious rate or area in a watershed without considering structure features as like shape, edge, connection of impervious cover. In this study, we focused on a landscape structure which includes shape, density, contiguity, distance, aggregation of land cover type as well as area and rate. The calculation of a landscape indices made to analyse a landscape structure is conducted by applying Fragastats 3.3 program. Osan-cheon watershed where has rapidly urbanized is selected as a study field. Land information for 2002 and 2007 is from land classification maps provided by Ministry of Environment. The result shows that the increasing rate of an impervious cover is more conspicious in Kiheung dam watershed but the fragment of impervious cover areas is shown remarkably in the Osan sub-watershed. The trend of aggregation and connection of impervious covers is increasing. But it was very difficult to say that which type of landscape structure is more beneficial for a watershed management. The implication of this study is to find the need to come over the conventional ways to evaluate landscape structure of a watershed such as rates and areas of impervious cover, and define the importance of landscape feature as like connection, distance, edge density, fragment of impervious covers.

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 Analysis of Landscape Structure due to the Landcover Change - Case Study in Kyongsan City - (토지이용변화에 따른 경산시의 경관구조 분석)

  • Jeong, Seong-Gwan;Oh, Jeong-Hak;Park, Kyung-Hun
    • Journal of the Korean Association of Geographic Information Studies
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    • v.5 no.3
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    • pp.9-18
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    • 2002
  • Landscape, the land mosaics, is combined with human and natural environment. Landuse and landcover changes are an important factor that changes structure and function of regional landscape. In this study, the changes of landcover and landscape structures are examined in Kyongsan between 1985 and 1997, using Landsat TM images and landscape indices. The results of this study are as follows; First, according to the classification of landcover, forest and agriculture areas have decreased as a result of urban expansion. Second, forest fragmentation has been brought by development; So forest healthiness has weakened. It is proved that urban expansion has happened in agriculture land. Third, a variety of landuse types around forest have changed from agriculture-oriented types to the ones mixed with urban and agriculture areas between 1985 and 1997.

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The Study of Landscape Fragmentation for the Urban Landscape Planning (도시경관계획수립을 위한 경관파편화에 관한 연구)

  • Jung, Sung-Gwan;Oh, Jeong-Hak;Park, Kyung-Hun
    • Journal of the Korean Association of Geographic Information Studies
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    • v.6 no.3
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    • pp.11-20
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    • 2003
  • Many-sided approach methods are being demanded to solve environmental problems in urban areas. One of these methods will be to manage forests scattered in urban areas efficiently. This paper is to grasp the change of land use and landscape indices in Mt. Ap, Daegu, and to analyze the change of landscape structure. Mt. Ap is near Daegu Metropolitan, so under unnatural interferences of human activity persistently. The results of above analysis run as follows: First, the north of the case area is connected to forest, and keeps stable equilibrium ecologically, while the other parts of it suffer from rural exodus and side effects of urbanization which has been completed since 1980. Second, according to the area-rate change of each landscape element, a cultivated areas has been converted into urban one, especially Pinus densiflora forests and paddy fields into mixed forests and urban areas. Finally, most of plantations have been converted into deciduous forests and mixed forests in failure of adaption of plants in burned areas rather than owing to factitious interference.

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A Study of the Analysis and Evaluation of Factors of Changes in the Rural Landscape by Regional Development - Focus on Jeolla-Do - (지역개발로 인한 농촌마을 경관변화요인 평가 및 분석연구 - 전라도 지역을 대상으로 -)

  • Choi, Jin Ah;Kim, Sang Bum;Kim, Eun Ja;Lim, Chang Su;Park, Mee Jeong
    • The Korean Journal of Community Living Science
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    • v.27 no.spc
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    • pp.689-702
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    • 2016
  • In this study, it was promoted for the purpose of direction for rural landscape planning and management through the analysis of the factors of change in the rural landscape. In the course of research, through literature review study and field surveys, to derive the 25 factors that influence the change in the rural landscape. Later, 25 factors were evaluated in the impact on landscape by experts. 25 factors of the rural landscape were a comprehensive analysis and the results of literature review study and field surveys about the five villages of research area; Ji-San village, Non-Gae village, etc. Expert evaluation was carried out by the rural landscape, and architecture professionals of various related fields. As a result of the analysis, the flow of rural development policy and the business had a great effect on the physical changes in the rural landscape. Furthermore, additional factors such as population structure and lifestyle have made the change in the complex landscapes. Meaning the study has is to provide information on what need there are considered factors in the rural landscape planning and management. The reason is that, since the rural landscape characteristics are different, in order to develop the more efficient rural landscape plan and management.

The Vegetation Structure Change of Seochon Complementary Village Forest in Jinan County during 14 Years(2002~2016) (진안 서촌 마을비보숲의 14년간(2002~2016)의 식생구조 변화)

  • Park, Jae-Chul;Jung, Kyoung-Sook;Lee, Suk-Woo;Kim, Young-Suk
    • Journal of the Korean Institute of Landscape Architecture
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    • v.45 no.3
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    • pp.30-40
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    • 2017
  • The purpose of this study is to identify the change in vegetation structure of a complementary forest through monitoring a natural complementary village forest. Because the most complementary village forests are located in the Jinan of all counties of South Korea, the naturally-managed Seochon complementary village forest of Jinan county was selected for monitoring the changes. In this study, it was found that Seochon Village, which was formed in the late 1800s as a refuge by Catholic believers, began to evolve and develop other parts of the forest for refugee purposes but that the forest around the stream's mouth remained intact and was conserved. The vegetational survey for monitoring was performed in 2002, 2007 and 2016. In field survey, D(Dominent degree) and S(Sociability degree) were measured by Brown-Blanquet's method. This study monitored the change of species richness and species composition and layer structure through an analysis of the field survey. As a result, it was found that the structure and function of the complementary village forest has been improved through reduced human disturbance. It was also found that a multi-layer structure has been more stable, species richness has been increased, and quality of species composition has been improved through natural succession.

On the Design Characteristics of Modern Landscape Architecture -With the Trends of Garden Design after Neo-Classicism- (모더니즘조경의 설계 특성에 관한 연구 -신고전주의 이후 나타난 정원설계를 중심으로-)

  • 김영대
    • Journal of the Korean Institute of Landscape Architecture
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    • v.22 no.4
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    • pp.43-62
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    • 1995
  • This paper is to define what characteristics of modern landscape architecture are in terms of garden design. It is important to understand the characteristics of modern landscape architecture, not only for practical design works but also for design ideology. The characteristics were investigated by anlayzing several crucial drawings of modern landscape architects from the later ninteenth century to the early twentieth century. It is found that modern landscape architecture had been evolved after Neo-classicism in its design language, use of materials and principles. And modern landscape architecture was formulating its own design language not only by borrowing the language from other design fields, such as modern architecture but also by making own vocabulary itself the characteristics of modern landscape architecture were defined as collapse of genre, organic structure, pictorial composition, change of living thing, including those of modern architecture. Modern landscape architects drew their humanistic image on "the garden palette" which pursued artistic sense of creation.

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Forest Patch Characteristics and Their Contribution to Forest-Bird Diversity - Focus on Chungcheong Province Area - (산림패치의 특성이 조류 종 다양성에 미치는 영향분석 - 충청지역을 중심으로 -)

  • Lee, Dong-Kun;Park, Chan;Oh, Kyu-Sik
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.13 no.5
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    • pp.146-153
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    • 2010
  • Urban development typically results in many species being confined to small, isolated and degraded habitat fragments. Fragment size and isolation underpin many studies of modified landscape to prevent biodiversity loss. However, habitat characteristics such as vegetation structure and edge effects are less frequently incorporated in planning. The relative influence of biogeographic (e.g. size, isolation) and vegetation parameters on assemblages is poorly understood, but critical for conservation management. In this study, the relative importance of biogeographic and vegetation parameters in explaining the diversity of forest-interior dwelling birds in forest fragments in Chungcheong Province Area. Fragment size and vegetation characteristics were consistently important predictors of bird diversity. Forestinterior bird richness was influenced by fragment size (0.437), wood age (0.332), wood diameter (0.068), and patch shape (-0.079). To preserve bird diversity of Chungcheong Province Area, it is important to consider differing responses of bird diversity to landscape change, move beyond a focus primarily on spatial attributes (size, isolation) to recognize that landscape change also has profound effects on habitat composition and quality. The result is very useful for long-term aspect of biodiversity conservation plan in regional scale.

Seasonal Changes in Structure and Landscape of Urban Stream Corridor - In the Case of Gongji Stream in Chuncheon- (도시하천 하도구조와 경관의 계절변화 - 춘천시 공지천을 중심으로 -)

  • Jo Hyun-Kil;Han Gab-Soo
    • Journal of Environmental Science International
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    • v.14 no.8
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    • pp.739-748
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    • 2005
  • The purpose of this study is to analyze seasonal changes in structure and landscape of Gongji stream corridor in Chuncheon, and to suggest some guidelines to contribute to creating a desirable close-to- nature stream. The study seasonally surveyed floodplain and revetment conditions, channel micro-topography, streamflow level and velocity, and vegetational cover. Flooding, water level, and vegetation were major factors of affecting seasonal changes in streambed structure and stream landscape. Small sand bars and islands were considerably disturbed by flooding and water level change. However, large islands and sand bars in the upper and middle section of the study stream remained or reappeared even after flooding. Flooding also tended to repeat channel sedimentation at the same spot. Controlling water volume of the Euiam Lake, which is adjacent to the study stream, caused higher water level downstream in the dry seasons. The majority of vegetation in sand bars and islands was washed away by the floods. Vehicle passing, crop cultivation, and ball game were other elements which disturbed vegetation in the floodplain. Creating a close-to-nature stream should reflect micro-topographical changes of channel by flooding, prevent improper vehicle entry and human use, and remove concrete material in the revetment and floodplain.