• 제목/요약/키워드: Land use change

검색결과 915건 처리시간 0.027초

A Study on Modeling of Spatial Land-use Prediction

  • Kim, Eui-Hong
    • 대한원격탐사학회지
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    • 제1권1호
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    • pp.53-61
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    • 1985
  • The purpose of the study is to establish models of land use prediction system for development and management of land resources using remotely sensed data as well as ancillary data in the context of multi-disciplinary approach in the application to CheJoo Island. The model adopts multi-date processing techniques and is a spatial/temporal land-use projection strategy emerged as a synthesis of the probability transition model and the discriminant-annlysis model. A discriminant model is applied to all pixels in CheJoo landscape plane to predict the most likely change in land use. The probability transition model provides the number of these pixels that will convert to different land use in a gives future time increment. The synthetic model predicts the future change in land use and its volume of pixels in the landscape plane.

Consequences of land use change on bird distribution at Sakaerat Environmental Research Station

  • Trisurat, Yongyut;Duengkae, Prateep
    • Journal of Ecology and Environment
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    • 제34권2호
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    • pp.203-214
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    • 2011
  • The objectives of this research were to predict land-use/land-cover change at the Sakaerat Environmental Research Station (SERS) and to analyze its consequences on the distribution for Black-crested Bulbul (Pycnonotus melanicterus), which is a popular species for bird-watching activity. The Dyna-CLUE model was used to determine land-use allocation between 2008 and 2020 under two scenarios. Trend scenario was a continuation of recent land-use change (2002-2008), while the integrated land-use management scenario aimed to protect 45% of study area under intact forest, rehabilitated forest and reforestation for renewable energy. The maximum entropy model (Maxent), Geographic Information System (GIS) and FRAGSTATS package were used to predict bird occurrence and assess landscape fragmentation indices, respectively. The results revealed that parts of secondary growth, agriculture areas and dry dipterocarp forest close to road networks would be converted to other land use classes, especially eucalyptus plantation. Distance to dry evergreen forest, distance to secondary growth and distance to road were important factors for Black-crested Bulbul distribution because this species prefers to inhabit ecotones between dense forest and open woodland. The predicted for occurrence of Black-crested Bulbul in 2008 covers an area of 3,802 ha and relatively reduces to 3,342 ha in 2020 for trend scenario and to 3,627 ha for integrated-land use management scenario. However, intact habitats would be severely fragmented, which can be noticed by total habitat area, largest patch index and total core area indices, especially under the trend scenario. These consequences are likely to diminish the recreation and education values of the SERS to the public.

인공위성자료를 이용한 환경영향평가 : 토지이용 변화를 중심으로 (Environmental Impact Assessment Using Remote Sensing Data : the Land Use Change)

  • 문현생;김명진;한의정;이재운;방규철;이희선
    • 환경영향평가
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    • 제4권2호
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    • pp.23-28
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    • 1995
  • Remote sensing begins to be applied in Environmental Impact Assessment(EIA), and it can systematically assess land use which is an important factor in EIA. This study is to predict land use change of Ulsan region and to assess impact on land use using the past and the present data of remote sensing. Also we analyzed an impact area influenced by EIA projects through the integration of remote sensing and GIS. This technique will be applied to the screening stage in EIA.

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위성영상을 이용한 토지이용 변화 검색기법 비교연구 (Comparison of Land Use Change Detection Methods with Satellite Image)

  • 박순호;김우관
    • 한국지역지리학회지
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    • 제5권1호
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    • pp.137-150
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    • 1999
  • 우리나라에서 위성자료를 이용한 토지이용에 관한 연구는 현황분석이 중심이고, 토지이용 변화에 관한 연구는 분석기법에 대한 적실성 평가 없이 특정기법이 적용되어 왔다. 본 연구는 도시지역의 토지이용 변화 검색에 많이 활용되고 있는 다섯 가지 토지이용 변화 검색기법을 선정하여 대구광역시 북구를 사례로 각 검색기법의 정확도를 비교 분석하였다. 핵심데이터는 1994년과 1997년에 촬영한 Landsat TM영상과 항공사진이다. 위성자료를 이용한 토지이용 변화검색에는 pre-classification comparison method가 post-classification comparison method보다 효과적이었다. Pre-classification comparison methods 중에서는 image differencing method가, 특히 임계치 1.0에서의 image differencing method의 DIF2 변화이미지의 경우가 가장 정확도가 높게 나타났다.

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GSIS를 이용한 제주도 국토개발에 따른 환경변화에 관한 연구 (A Study on Environment Change According to Land Development Plan of Cheju Island Using GSIS Technique)

  • 이병걸;강인준
    • 한국환경과학회지
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    • 제9권1호
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    • pp.27-33
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    • 2000
  • The purpose of this paper is to present the environment change of Cheju Island as land development process using GSIS(Geo-Spatial Information System) technique. We implemented the process based on the maps of soil color, underground water pollution points, land use, land development planning and land sight seeing supported by Cheju Province Office. To use the maps for GSIS data, first we transformed the picture data of the office into raster structured picture data using scanner. Second, the coordinate system was added to raster data using 1/50000 geographic map. Third, we estimated land planning process using GSIS technique(overlay and reclass technique). The results showed that land development effected the natural environment(forest, green field, farm land). However, the chemical pollution and land sight seeing was not so much effected by the land development that was found.

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토지이용균형 모델을 이용한 기후변화에 따른 주거용 토지이용변화 - 제주 지역을 대상으로 - (A Study of Future Residential Land Use Change considering Climate Change using Land Use Equilibrium Model in Jeju)

  • 유소민;이우균;;김지영;김문일;임철희
    • 한국기후변화학회지
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    • 제6권1호
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    • pp.1-10
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    • 2015
  • Climate change lead to environmental pollution caused by the radical economic growth and development of industry. The amount of damage from abnormal climate is increasing rapidly for this reason in Korea. In particular, the cities is a lot of carbon emission quantity from the radical growth. Thus the government present "low carbon green growth" for eco-friendly city planning. As one of the important factors effecting climate change, active researches on land use change is performed. In this study, we knew land use change of each scenarios using land use equilibrium model which is kind of predictive model of land use in Japan. First, we selected study area to Jeju lsland. For this study, indicators for input data were selected and spatial data for input data were established using GIS program. Second, we established future scenarios based in 2040s. There are 2 future scenarios: dispersion scenario, compact scenario. Third, we compared with residential area of current and residential area for future scenarios. Results showed that residential area of the difference between current and dispersion scenario were 1,230 ha and residential area of the difference between current and compact scenario were 1,515 ha. Finally, for comparing carbon dioxide absorption volume between dispersion scenarios and compact scenarios, we calculated carbon dioxide absorption volume according to residential area decreased of each future scenarios. Results showed that carbon dioxide absorption volume in dispersion scenario was 477,878 ton and carbon dioxide absorption volume in compact scenario was 588,606 ton. Therefore, the study showed that land use equilibrium model is expected to put to use for future enhancement in creating data for climate change stabilization. And it is also expected to be utilized for city planning research in Korea.

계획개발된 단독주택지구의 주차문제에 대한 토지이용 원인 -강릉 교동2택지개발사업지구를 대상으로- (Cause of Land-use on the Parking Difficulties in the Planned Residential Area -Case Study of GyoDong 2 Land development District in GangNeung City-)

  • 임동일
    • 한국콘텐츠학회논문지
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    • 제13권6호
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    • pp.496-506
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    • 2013
  • 본 연구는 계획적으로 조성된 단독주택지구의 주차부족을 야기하는 근본적 원인이 현실을 제대로 고려하지 못한 토지이용계획에 있음을 제기하고 이에 대한 개선방안을 모색하고자 하였다. 강릉시 교동2택지개발지구의 단독주택지구를 사례로 개발계획에 나타난 토지이용계획과 주차계획 등을 검토하였으며, 현장조사를 통해 토지이용현황과 주차실태를 조사하였다. 단독주택지구의 주차문제를 발생시키는 주요 요인으로는 현실을 제대로 반영하지 못한 토지이용계획에 있는데, 이는 주차수요가 과소 추정되고 주차장 공급이 부족한 결과를 낳았다. 또한 개발 이후의 토지이용과 주차에 대한 관리가 소홀했다는 점도 들 수 있다. 이와 같은 문제에 대한 개선방안으로는 토지이용계획 수립 시점부터 향후 토지이용 변화를 예측하여 적절한 토지이용계획 및 주차장 확보계획이 이루어져야 하며, 주차수요의 변화를 반영한 토지이용 관리가 이루어져야 할 것이다.

Streamflow sensitivity to land cover changes: Akaki River, Ethiopia

  • Mitiku, Dereje Birhanu;Kim, Hyeon Jun;Jang, Cheol Hee;Park, Sanghyun;Choi, Shin Woo
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2016년도 학술발표회
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    • pp.49-49
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    • 2016
  • The impact of land cover changes on streamflow of the Akaki catchment will be assessed using Soil and Water Assessment Tool (SWAT) model. The study will analyze the historical land cover changes (1993 to 2016) that have taken place in the catchment and its effect on the streamflow of the study area. Arc GIS will be used to analysis the satellite images obtained from the United States Geological Survey (USGS). To investigate the impact of land cover change on streamflow the model set up will be done using readily available spatial and temporal data, and calibrated against measured discharge. Two third of the data will be used for model calibration (1993?2000) and the remaining one-third for model validation (2001?2004). Model performance will be evaluated by using Nash and Sutcliff efficiency (NS) and coefficient of determination (R2). The calibrated model will be used to assess two land cover change (2002 and 2016) scenarios and its likely impacts of land use changes on the runoff will be quantified. The evaluation of the model response to these changes on streamflow will be presented properly. The study will contribute a lot to understand land use and land cover change on streamflow. This enhances the ability of stakeholder to implement sound policies to minimize undesirable future impacts and management alternatives which have a significant role in future flood control of the study area.

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대도시 주변지역의 토지이용변화 - 대구광역시를 중심으로 - (A Study on the Change Detection of Multi-temporal Data - A Case Study on the Urban Fringe in Daegu Metropolitan City -)

  • 박인환;장갑수
    • 한국조경학회지
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    • 제30권1호
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    • pp.1-10
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    • 2002
  • The purpose of this article is to examine land use change in the fringe area of a metropolitan city through multi-temporal data analysis. Change detection has been regarded as one of the most important applications for utilization of remotely sensed imageries. Conventionally, two images were used for change detection, and Arithmetic calculators were generally used on the process. Meanwhile, multi-temporal change detection for a large number of images has been carried out. In this paper, a digital land-use map and three Landsat TM data were utilized for the multi-temporal change detection Each urban area map was extracted as a base map on the process of multi-temporal change detection. Each urban area map was converted to bit image by using boolean logic. Various urban change types could be obtained by stacking the urban area maps derived from the multi-temporal data using Geographic Information System(GIS). Urban change type map was created by using the process of piling up the bit images. Then the urban change type map was compared with each land cover map for the change detection. Dalseo-gu of Daegu city and Hwawon-eup of Dalsung-gun, the fringe area of Daegu Metropolitan city, were selected for the test area of this multi-temporal change detection method. The districts are adjacent to each other. Dalseo-gu has been developed for 30 yeais and so a large area of paddy land has been changed into a built-up area. Hwawon-eup, near by Dalseo-gu, has been influenced by the urbanization of Dalseo-gu. From 1972 to 1999, 3,507.9ha of agricultural area has been changed into other land uses, while 72.7ha of forest area has been altered. This agricultural area was designated as a 'Semi-agricultural area'by the National landuse Management Law. And it was easy for the preserved area to be changed into a built-up area once it would be included as urban area. Finally, the method of treatment and management of the preserved area needs to be changed to prevent the destruction of paddy land by urban sprawl on the urban fringe.

GLCM과 육안판독을 이용한 도시경계 추출 (Extracting Urban Boundary Using Grey Level Co-Occurrence Matrix Method and Visual Interpretation)

  • 손홍규;김기홍;유복모;방수남
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2003년도 춘계학술발표회 논문집
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    • pp.313-316
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    • 2003
  • Growing urban areas modify patterns of local land use and land cover. Land use changes associated with an urban area can be extensive. One way to understand and document land use change and urbanization is to establish benchmark maps compiled from satellite imagery The use of satellite imagery for monitoring urban growth has been widely demonstrated. Multi-temporal LANSAT TM image data has created the potential for monitoring urban change and land cover identification. In this study, for extracting urban boundary GLCM method and visual interpretation were used in CORONA imagery and SPOT imagery.

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