• 제목/요약/키워드: landscape change

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

  • 이규석;이상화;신동훈;안승만;서병기
    • 한국환경복원기술학회지
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    • 제6권1호
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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.

교량경관의 이미지 및 시각적 선호도 분석 - 배경경관 및 교량형태를 중심으로 - (Analysis on the Image and Visual Preference of Bridge Landscapes - A Focus on Background Landscape and Bridge Type -)

  • 정성관;채소정;김경태;이우성;박경훈;유주한
    • 한국조경학회지
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    • 제35권5호
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    • pp.82-91
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    • 2007
  • Currently, bridges are regarding as the structure with formative, scenic and environmental values more than their function as simple passageways. Because an attempt to work on the diversity of the bridge types and installation of the large structures on bridge are part of the project of the regional amenity enterprises, a study that harmonizes bridges with landscape is needed at this point in time. This background can influence the direction of bridge landscapes that considers local features by analysis of visual preferences on a bridge simulated scene. The results were as follows: analyzing the change of the simulated landscape image, forest landscape are damaged by the input of a bridge which was natural, harmonic and intimate. On the other hand, when a bridge was inserted into the ocean landscape, it was thought to improve the ocean landscape, especially, upper part form of arch bridge various or suspension bridge were improved in polished and various image. The insertion of a bridge into an urban landscape change from a negative image to a beautiful, harmonic and attractive image. The intimate, harmonic and natural image of a rural landscape was damaged by inserting a bridge. As analysis result about change of landscape preference by input of bridge, there is difference between before and after as input the bridge, and bridge influences as main object in the simulated scene. Visual preference was the highest in the ocean landscape, and the lowest in the suspension bridge in the rural landscape. The complicated shape of bridge follows on the background type difference certainly appear. Thee simulated scene preference except the urban landscape of the simulated scene fell generally Especially, fall of preference of girder bridge in the forest and ocean landscape, suspension bridge in the rural landscape appeared notedly.

경관 특성 파악에 있어서의 시퀀스적 시점장 선정과 전방위 화상정보의 유효성 검증에 관한 연구 (A Study of Selecting Sequential Viewpoint and Examining the Effectiveness of Omni-directional Angle Image Information in Grasping the Characteristics of Landscape)

  • 김홍만;이인희
    • KIEAE Journal
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    • 제9권2호
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    • pp.81-90
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    • 2009
  • Relating to grasping sequential landscape characteristics in consideration of the behavioral characteristics of the subject experiencing visual perception, this study was made on the subject of main walking line section for visitors of three treasures of Buddhist temples. Especially, as a method of obtaining data for grasping sequential visual perception landscape, the researcher employed [momentum sequential viewpoint setup] according to [the interval of pointers arbitrarily] and fisheye-lens-camera photography using the obtained omni-directional angle visual perception information. As a result, in terms of viewpoint selection, factors like approach road form, change in circulation axis, change in the ground surface level, appearance of objects, etc. were verified to make effect, and among these, approach road form and circulation axis change turned out to be the greatest influences. In addition, as a result of reviewing the effectiveness via the subjects, for the sake of qualitative evaluation of landscape components using the VR picture image obtained in the process of acquiring omni-directional angle visual perception information, a positive result over certain values was earned in terms of panoramic vision, scene reproduction, three-dimensional perspective, etc. This convinces us of the possibility to activate the qualitative evaluation of omni-directional angle picture information and the study of landscape through it henceforth.

자연경관 내 개발사업에 대한 경관영향예측 시뮬레이션 (A Study on the Landscape Impact Simulation for Development Projects in Natural Landscape)

  • 신민지;신지훈
    • 농촌계획
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    • 제25권3호
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    • pp.59-66
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    • 2019
  • This study saw developed to build a landscape monitoring methodology by simulation of landscape effect prediction. A Visual landscape planning and management system has been introduced and implemented by each ministry so as to solve the problems of visual landscape destruction due to recognition on the value of natural landscape of beautiful territory and various development projects. At present, this system emphasizes the importance of the visual and perceptual aspect of the landscape however, there is a lack of techniques required for comprehensively predicting, evaluating, and managing it. Furthermore, sustainable landscape management after the completion of development projects has been inadequately carried out, as the focus has been only on consultation in the planning process of the development project in institutional performance. The viewpoint for judging the change in the visual landscape of the development plan and development project should be selected as the effective point where the development project is expected to result in a remarkable landscape change. As for the method of selecting effective viewpoints, the main viewpoints are selected by analyzing the visible area of the target viewpoint. When selecting the viewpoint centered on the viewpoint target, it was judged that it is possible to reduce the procedure of selecting and checking the existing preliminary viewpoints and widening the effective visible range. The proposed visual landscape monitoring is expected to be able to solve the existing institutional problems, and to be used when the implementers and authors of the development projects review the effects on the landscape.

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

  • 이창석;홍선기
    • The Korean Journal of Ecology
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    • 제21권4호
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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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농촌개발정책이 농촌경관 변화에 미친 영향에 관한 연구 (A Study on Rural Landscape Change by Government's Development Policy)

  • 강영은;최동욱;홍성희;정윤희;김상범;임승빈
    • 한국조경학회지
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    • 제39권6호
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    • pp.21-35
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    • 2011
  • 본 연구는 근대화 이후 급격하게 변천되어온 우리나라 농촌지역 원형의 모습과 이의 변화양상을 고찰하기 위한 기초연구로서, 근대 이후 농촌지역의 변천과정을 시계열적으로 비교 분석하였다. 이를 통하여 근대화 과정에서 나타난 한국 농촌농촌경관 변화의 보편적인 특성을 파악하고, 나아가 향후 농촌경관의 보전 및 관리에 시사점을 제공하는 것이 본 연구의 주 목적이다. 농촌경관의 변화를 면밀히 파악하기 위한 경관유형은 해당 경관이 입지하고 있는 장소 및 속성에 따라 주거경관, 생산경관, 녹지경관, 수변경관, 가로경관, 상징 및 신앙경관의 총 6가지 유형으로 분류할 수 있었고, 이의 유형별 총체적인 변화 내용 및 과정을 분석하였다. 문헌조사 및 현장조사에 의하여 도출한 경관의 변화 양상은 크게 경관 요소의 형성, 변경, 이전, 손실, 복원의 5가지 유형으로 도출할 수 있었으며, 경관의 전체적 구조 및 구성체계 등의 거시적 변화에서부터 개별 경관요소의 형태, 재료, 크기, 색채 등의 미시적 변화에 이르기까지 복합적인 경관변화가 지속되어온 것임을 파악할 수 있었다. 본 연구는 농촌개발정책에 의한 농촌경관의 변화를 거시적 차원에서 분석한 연구로, 개발정책의 범주에 포함되지 않는 농촌마을에 적용시키기 어렵다는 것이 한계점으로 지적될 수 있다. 하지만 본 연구는 농촌개발정책의 흐름과 경관변화간의 상응관계에 주목하여 변화 경향을 파악함으로써 농촌경관계획 및 관리에 시사점을 제공하는 것에 의의가 있다. 본 연구를 기초로 향후 연구는 개발정책으로 인한 경관변화뿐만이 아니라 사회 경제적 요소 등 다양한 측면으로 인한 변화 양상을 고찰하는 방향으로 진행되어야 할 것이다.

토지이용변화에 따른 낙동강 유역 산림경관의 구조적 패턴 분석 (Patterns of Forest Landscape Structure due to Landcover Change in the Nakdong River Basin)

  • 박경훈;정성관;권진오;오정학
    • 농촌계획
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    • 제11권4호
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    • pp.47-57
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    • 2005
  • The goal of this research is to evaluate landscape-ecological characteristics of watersheds in the Nakdong River Basin by using Geogaphic Information System (GIS) and landscape indices for integation of spatio-temporal informations and multivariate statistical techniques for quantitative analysis of forest landscape. Fragmentation index and change matrix techniques using factor analysis and grid overlay method were used to efficiently analyze and manage huge amount of information for ecological-environmental assessment (land-cover and forest landscape patterns). According to the results based on the pattern analysis of land-cover changes using the change detection matrix between 1980s and 1990s, addition on 750km$^2$ became urbanized areas. The altered 442.04km$^2$ was agricultural areas which is relatively easy for shifting of land-use, and 205.1km$^2$ of forests became urbanized areas, and average elevation and slope of the whole altered areas were 75m and 4$^{\circ}$. On the other hand, 120km$^2$ of urban areas were changed into other areas (i.e., agricultural areas and green space), and fortunately, certain amount of naturalness had been recovered. But still those agricultural areas and fallow areas, which were previously urban areas, had high potential of re-development for urbanization due to their local conditions. According to the structural analysis of forest landscape using the landscape indices, the forest fragmentation of watersheds along the main stream of the Nakdong River was more severe than my other watersheds. Furthermore, the Nakdong-sangju and Nakdong-miryang watersheds had unstable forest structures as well as least amount of forest quantity. Thus, these areas need significant amount of forest through a new forest management policy considering local environmental conditions.

Study on Change in Landscape Structure over Time in Suburban Area by Using GIS -Case Study of Kawachinagano City, Osaka-

  • Kaga, Horoyuki;Izaki, Noriaki;Shimomura, Yasuhiko;Masuda, Noboru
    • Journal of the Korean Institute of Landscape Architecture International Edition
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    • 제1호
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    • pp.67-74
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    • 2001
  • Now that importance of landscape planning unique to each area is emphasized, it is necessary to conduct landscape planning by taking advantage of natural environments unique to each ares, because its natural environments are regarded as one of the assets the area possesses. This study targets at Kawachinagano City, Osaka, one of the residential areas that I not only rich in natural and historical elements, but also has been rapidly growing. The purposes of this study are to evaluate change in landscape structure over time by analyzing relation between landform and pattern of expanding the built-up area at three time points of 1932, 1967, and 1994 with GIS (ARC/INFO 7.0.3, ARC/View 3.0 (ESRI)), as well as to make some suggestions for planning landscape unique to the area. Data on main ridges, sub ridges, main rivers, and other landform were read from the elevation map, and data on woodland, and parks and open spaces (having more than 3 ha area) were read from the existing land use map. The data were used to understand the natural structure of the city from topographic viewpoint. Next, the existing land use map prepared with data on the built-up area and urban axes consisting of roads and streets were overlaid on the elevation map in order to understand relation between pattern of expanding the built-up area and the natural structure.

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지표면 변화 탐색 및 예측 시스템을 위한 공간 모형 (Spatial Analyses and Modeling of Landsacpe Dynamics)

  • 정명희;윤의중
    • Spatial Information Research
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    • 제11권3호
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    • pp.227-240
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    • 2003
  • 본 연구는 2D 기반의 동적 공간모형(dynamic spatial landscape models)을 통해 지표 변화 과정을 이해하고 예측할 수 있는 방법론을 제시하는데 그 초점을 두고 있다. 동적 공간모형 에 기반한 연구는 크게 지표의 공간 패턴에 대한 모형화와 변화 과정에 관한 모형화 및 모의로 구성되어 있는데 지표 변화와 관련된 규칙은 변화 원인과 그 과정에 따라 다르게 정의될 수 있다. 이때 지표 패턴의 이질성은 변화와 밀접한 관계를 가지고 있기 때문에 연구 지역의 GIS 맵으로부터 공간 패턴의 특성을 모형화 하여 이를 기반으로 변화에 관한 동적 공간 모형이 적용되어야 한다. 본 논문에서는 이를 위한 모형기반 접근법이 설명되어 있고 자연 화재로 인한 지표 변화 과정에 적용되어 동적 공간 모형이 개발되었다.

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도시외곽지역의 산림변화 특성 (Characteristics of woodland changes in an urban fringe in Gwangju city)

  • 김근호
    • 농업과학연구
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    • 제39권2호
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    • pp.177-182
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    • 2012
  • It is widely recognised that changes in size and isolation of habitat patches have a negative impact on species richness and the distribution and persistence of populations. Thus, the aim of the research was to analyze the change, distribution and spatial characteristics of woodlands in an urban fringe landscape. The results indicated that there was a common trend of woodland loss across all landscape types while no new woodlands were established during 1976 and 2009. Small patches (less than 5 ha in size) were particularly vulnerable to and more likely to disappear due to human activities such as urbanisation. Changes in woodland cover were clearly observed between 1976 and 2009. Loss of many woodlands was caused by residential and infrastructural developments. As a result, woodlands were becoming smaller and more isolated. This trend probably had adverse effects on biodiversity. This woodland information can be used to identify the potential and specific needs for conservation planning in rapidly developing urban areas.