• Title/Summary/Keyword: 경관변화성

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Spatio-temporal Change Detection of Forest Patches Due to the Recent Land Development in North Korea (북한 도시지역의 산림파편화 변화조사)

  • Kim, Sang-Wook;Park, Chong-Hwa
    • Journal of Environmental Impact Assessment
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    • v.10 no.1
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    • pp.39-47
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    • 2001
  • 본 연구는 지리정보시스템 및 원격탐사기법을 응용하여 북한의 자연환경을 조사하기 위한 기초연구로서 수행되었으며, 과거 약 20년 동안의 평양 및 남포지역의 산림면적의 변화 및 경관구조 변화측면에서의 산림 파편화 양상을 조사하였다. 조사자료로는 Landsat MSS 및 TM 영상의 NDVI값을 이용하였으며, 보다 정확한 피복분류를 위하여 변형된 Cluster-Busting 알고리즘을 활용하여 산림과 비산림지역으로 단순화시켜 분석하였다. 경관구조의 변화를 살피기 위해서 조각밀도, 형태 및 핵심내부지역의 면적 등의 경관지수(Landscape Indices)를 활용하였다. 분석과정을 거쳐서 도출된 결론은 다음과 같다. 첫째, Cluster-busting 방법을 활용한 토지피복 분류결과 87.3%의 총 분류 정확도를 얻었으며, Binary Map을 이용한 변화감지(Change Detection)기법 또한 그 결과가 정확한 것으로 판단되었다. 둘째, '79년에서 '98년에 이르는 기간동안, 평양의 경우 '79년 산림면적의 15%, 그리고 남포지역의 경우 14%가 감소하였다. 셋째, 경관지수를 이용하여 북한 산림의 파편화 변화를 조사한 결과 산림조각의 개수는 늘어나고 조각의 평균면적 및 핵심내부면적은 감소하였으며 조각크기의 다양성 또한 낮아졌다. 산림조각 형태지수 또한 매우 증가하였는데 이러한 결과들은 평양 및 남포지역의 산림조각이 파편화되고 그 형태 또한 불규칙적이며 복잡하게 변화하였음을 보여주고 있다.

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Conservation and Restoration of Historical and Cultural Landscape on Seochon in Seoul (서울 서촌지역의 역사문화경관 보존 및 복원)

  • Lee, Jin-Hyang;Kim, Sun-Hwa;Seo, U-Hyeon;Lee, Jae-Keun
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.29 no.4
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    • pp.98-110
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    • 2011
  • Seochon('West Village') is located in the west side of Gyeongbokgung(Gyeongbok Royal Palace) inside the old city wall of Seoul. Seochon has beautiful scenic view surrounding Mt. Inwang and has been known as the representative historical and cultural landscape region in Korea that historical and cultural resources are rich. But when the figure of Seochon which has repeated the changes with the ones of the times is considered, values of beauty of natural landscape that Seochon had and its own placeness have not been gradually recognized as it has been swept away in logic of the development on the strength of economics. This study tries to examine the original form of landscape on Seochon which can be the standard of landscape change, the causes and process of its change and possibility to conserve and restore it to recognize potential value about historical culture of Seochon landscape and conserve and protect it. For this, this study compared and analyzed literature including poems and Yusangi, paintings and names of the scenery of the seasons as the landscape texts with the current status. The study result has found that Pilwundae should rehabilitate cultural assets to secure the prospect right and protect neighboring bedrock, Suseong-dong should expand the restoration areas focusing on the projects to make parks which are now being restored, Cheonghwigak and Cheongpunggye areas should restore waterways including historicity which is connected to figures and Seshimdae and Baekun-dong green zone should set the protective area for conservation.

A study on proposal of design aqueduct be considered for rural landscape on Agricultural Hydraulic Structures (농촌경관을 고려한 수로교 디자인 방안 연구)

  • Kim, Meyong-Won;Kim, Kwan-Ho;Cho, Young-Kweon
    • Proceedings of the Korea Concrete Institute Conference
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    • 2008.04a
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    • pp.1013-1016
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    • 2008
  • The demands of urban people for rural natural environments will increase but poor and low level of infrastructure facilities delay the development of green tourism villages as an attractive green tour destination. The objective of this paper are to offered a rural landscape improvement simulation of a aqueduct and designing that to meet the needs of the community.

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Analysis of Visual Preference Factor for Youngsan River Scenery considering the Variation of River Stage (영산강 하천경관의 수위변화에 따른 시각적 선호요인 분석)

  • Yoo, Sang-Wan
    • Archives of design research
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    • v.20 no.3 s.71
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    • pp.141-150
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    • 2007
  • This study began with the question: "what influence would the width of river surface have on visual preference, provided that the environment surrounding the river does not change?" to evaluate the visual preference factors of the river scenery which could vary according to the change of water level. To estimate the minimum flow needed for river sceneries, field survey of Youngsan river was carried out to collect the field data and evaluated the visual preference factors to obtain a most preferred W/B ratio. At Youngsan bridge location, the feeling of open space factors, physical characteristic factors and complexity factors appeared to have significant relations to visual preferences. At Imgok bridge location, complexity factors, aesthetic factors and physical characteristic factors have significance to visual preferences. As a result of multi regression modeling, it was found that physical factors affected visual preferences the most at urban river locations and complexity factors affected the most visual preferences at rural river locations. As a results of this study, the most preferred W/B ratio was estimated as which vary from 0.5 to 0.7 and this results can contribute to the field of river landscape design to maximize the users' satisfaction level.

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A Study on the Improvement of Streetscape in Landfill of Public Water Surface and Its Evaluation (Focusing of Marine City in Haeundae) (공유수면 매립지 내 가로경관 개선 방안 및 평가에 관한 연구 (해운대 머린시티를 대상으로))

  • Kim, Jong-Gu
    • Journal of Korean Society of Transportation
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    • v.28 no.2
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    • pp.99-108
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    • 2010
  • In this paper I tried to find out changed and improved streetscape through the simulation using components of streetscape abstracted by factor analysis after analyzing present situation and problems of the streetscape for housing developments prepared on publis water surface. An analysis object is located in Haeundae Marine City in Busan. As a result of analysing the streetscape of marine city at present, I could see that main problems were discontinuous street space that did not reflect the characteristic of seashore, uncomfortable and insecure passage owing to coexistence street at seashore, insufficient street facilities for pedestrians, and disordered outdoor signboards. Therefore, I put the causal problems of marine city's streetscape in the insufficient street components, disharmony, and discontinuity so analysed the simulation elements applying selected street components and evaluated them to deduce demand factors having common meaning. As the result, the common demand factors were 'street furniture', 'harmonious streetscape with surrounding', 'landscape with natural openness', and 'landscape with dynamic symbol' in the order. So it needs to stress on a plan for proper arrangement of 'street facilities' and symbolic streetscape having continuity and harmony with surrounding so that the plan can proceed more properly for marine city's identity.

A Study on the Changes in Citizens' Perceptions of Urban Landscape of Gimhae (김해시 도시경관에 대한 시민의 인식변화 연구)

  • Lee, Jang-Min;Ko, In-Seok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.2
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    • pp.1483-1489
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    • 2015
  • The purpose of this study is to investigate the changes in citizens' perceiving urban landscape. To this end, the citizens' perceptions of urban landscape of Gimhae were surveyed two times in 2003 and 2011. To examine the statistical significance, the frequency analysis, the chi-square test were applied. There were small changes of opinion between two periods caused by the change of city form, an increase in interest in the living environment, environmental protection and so on. The interest of the citizens of the landscape were high. Citizens showed a negative feedback with respect to economic sacrifice. So, regulation causing citizens' economic loss should be avoided and It is effective to establish policies to support and induction. The results of this study are intended to be used as a reference to the planning urban landscape.

Land Use Changes and Climate Patterns in Southeast Korea (우리나라 동남부 지역의 토지 이용과 기후 패턴 변화 분석)

  • Park, Sun-Yurp;Tak, Han-Myeong
    • Journal of the Korean Association of Geographic Information Studies
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    • v.16 no.2
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    • pp.47-64
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    • 2013
  • Landscape structure changes over the past three decades were determined with land use and land cover(LULC) maps, and their relationships with mean air temperature time series were the analyzed for the Busan metropolitan area and South Kyeongsang Province, Korea. The geometric structures of the LULC data were quantitatively represented based on FRAGSTATS, a spatial pattern analysis program for quantifying landscape structure. FRAGSTATS-derived landscape metrics confirmed that there were major changes in LULC and landscape fragmentation in the region. Meteorological observation records showed that mean air temperature had increased from $14.1^{\circ}C$ in the 1990's to $14.8^{\circ}C$ in the 2000's in Busan. For South Kyeongsang Province, they increased from $13.2^{\circ}C$ to $13.9^{\circ}C$ during the same time period. These long-term temperature changes are correlated with typical spatial pattern changes of LULC in the southeastern region of the country. Spatial metrics analysis showed that urban area expanded from 9.7% to 26.8% of Busan while forest and agricultural land decreased by 9.6% and 14.9%, respectively over the past thirty years. The significant urbanization are tightly associated with deforestation, removal of agricultural land, and fast temperature increases since the 1990's. The urban area of South Kyeongsang Province rapidly increased, and it became 12 times as large as it was. The degree of temperature increases differed among three different sub-regions. The temperature increasing rate was lowest in the coastal region while the colder mountainous region had the highest figure.

Landscape Preference and Image Property according to Middle Span and Sag Ratio of the Suspension Bridge (현수교의 중앙경간과 새그비에 따른 경관선호도와 이미지특성 분석)

  • Jang, Young-Ju;Son, Seung-Neo;Kum, Ki-Jung;Oh, Heung-Un
    • International Journal of Highway Engineering
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    • v.13 no.1
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    • pp.1-11
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    • 2011
  • This study is aimed at suggesting a plan for creating a landscape environment by grasping a landscape preference according to the change of middle span and sag ratio which is a consideration factor when designing the suspension bridge representing long-span bridges and image property of the bridge while applying SD method to a relation between landscape preference and image factor, and a connection of design element with image factor. An analysis on landscape preference about the bridge landscape showed from what the longer the length of middle span, the extent of sag ratio of preference decreased, the longer the middle span low sag ratio was preferred and the higher the landscape preference became. In landscape preference and image factor, the attribute of sag ratio with high landscape preference was all positively correlated with "stability", "plasticity", and "aesthetic" but an influence of "plasticity" was insignificant. In the relation between design element and image factor, the factor of middle span and sag ratio was more related to the factor of "stability" and the lower the sag ratio and the longer the middle span, the higher the "stability" was rated. This result showed the image property of "plasticity" was insignificant among the one of preference in landscape and to highlight the one of "plasticity" a complementary experiment was done with a change in balance and symmetry elements not in proportional element of middle span and sag ratio. The result showed the image property of "plasticity" was more highlighted in the suspension bridge of 3-tower and different bilateral symmetry at sag, and when designing the landscape of suspension bridge later on, the elements of balance and symmetry as well as the proportional element should be considered and reflected in the design.

The Structural and Functional Analysis of Landscape Changes in Daegu Metropolitan Sphere using Landscape Indices & Ecosystem Service Value (경관지수와 생태계용역가치를 활용한 대구광역도시권 경관의 구조적·기능적 변화 분석)

  • Choi, Won-Young;Jung, Sung-Gwan;Oh, Jeong-Hak;You, Ju-Han
    • Journal of the Korean Association of Geographic Information Studies
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    • v.8 no.4
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    • pp.102-113
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    • 2005
  • Ecosystem is composed of human, biotic and abiotic environment. Landscape is an ecosystem which appear in a unit region. These landscape are the spatiotemporal land mosaic which is combined with various landscape elements. And, land use and land cover changes are important factors of landscape structure changes. This study is mainly focused on the analysing the spatiotemporal change patterns of Daegu metropolitan sphere forest landscape, using landscape indices and Ecosystem Service Value (ESV) which quantify ecosystem structures and functions. The results of this study are as follow: The encroachment and fragmentation of forest were due to linear developments, i. e. road construction, rather than large-scale developments such as residental lands or industrial complexes. And, the core area percentages of landscape gradually decreased and these could possibly deteriorate the soundness of forest areas by reducing the core areas which are habitats of species. In addition, there was intimate relations between ESV and forest landscape area. The results of this study can be detached standards for impartial judgements between the logic of development & conservation, and basic standards for the establishment of development plans, i. e. metropolitan-plans, which are adequately reflected ecosystem value.

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Efficiency Assessment of Analysing Coastal Geomorphic Landscape Change by Satellite Image Interpretation (위성영상을 이용한 해안습지 지형경관 변화 분석의 효율성 평가)

  • 박의준;구자용
    • Journal of the Korean Geographical Society
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    • v.38 no.5
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    • pp.822-834
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    • 2003
  • It is difficult to analyse geomorphic landscape changes effectively by a field survey. A satellite image interpretation may play an important role to overcome such a problem. The purpose of this study is to assess the accuracy of different method to identify geomorphic landscape change by using satellite imagery. The study area is the Yongjong coastal wetland in which a huge man-made environmental change occured to build a new international airport in the past decade. These changes may be summarized that a coastal landscape has been changed to a terrestrial landscape, and also a natural landscape to a man-made landscape. In order to detect these changes, we applied three different satellite interpreting methods, including a binary change mask using band difference. a binary change mask using normalized band difference. and a binary change mask using NDVI. We concluded that a binary change mask using NDVI is the best method among three different methods analysing the coastal geomorphic-landscape changes.