• 제목/요약/키워드: High land

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Land Use Feature Extraction and Sprawl Development Prediction from Quickbird Satellite Imagery Using Dempster-Shafer and Land Transformation Model

  • Saharkhiz, Maryam Adel;Pradhan, Biswajeet;Rizeei, Hossein Mojaddadi;Jung, Hyung-Sup
    • 대한원격탐사학회지
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    • 제36권1호
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    • pp.15-27
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    • 2020
  • Accurate knowledge of land use/land cover (LULC) features and their relative changes over upon the time are essential for sustainable urban management. Urban sprawl growth has been always also a worldwide concern that needs to carefully monitor particularly in a developing country where unplanned building constriction has been expanding at a high rate. Recently, remotely sensed imageries with a very high spatial/spectral resolution and state of the art machine learning approaches sent the urban classification and growth monitoring to a higher level. In this research, we classified the Quickbird satellite imagery by object-based image analysis of Dempster-Shafer (OBIA-DS) for the years of 2002 and 2015 at Karbala-Iraq. The real LULC changes including, residential sprawl expansion, amongst these years, were identified via change detection procedure. In accordance with extracted features of LULC and detected trend of urban pattern, the future LULC dynamic was simulated by using land transformation model (LTM) in geospatial information system (GIS) platform. Both classification and prediction stages were successfully validated using ground control points (GCPs) through accuracy assessment metric of Kappa coefficient that indicated 0.87 and 0.91 for 2002 and 2015 classification as well as 0.79 for prediction part. Detail results revealed a substantial growth in building over fifteen years that mostly replaced by agriculture and orchard field. The prediction scenario of LULC sprawl development for 2030 revealed a substantial decline in green and agriculture land as well as an extensive increment in build-up area especially at the countryside of the city without following the residential pattern standard. The proposed method helps urban decision-makers to identify the detail temporal-spatial growth pattern of highly populated cities like Karbala. Additionally, the results of this study can be considered as a probable future map in order to design enough future social services and amenities for the local inhabitants.

Triazole계 화합물의 엽면살포 및 토양관주 처리가 백일홍의 생장 및 개화에 미치는 영향 (Effect of Foliar Spray and Soil Drench of Triazole Chemicals on Growth and Flowering in Zinnia elegans)

  • 이승우;안성은;김영채
    • 원예과학기술지
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    • 제19권4호
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    • pp.568-573
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    • 2001
  • 본 실험은 triazole계 화합물을 백일홍 'Dream Land Rose'와 'Dream Land Scarlet'에 경엽살포 또는 토양관주처리를 하여 생육 및 개화에 미치는 영향을 조사하기 위하여 수행하였다. 경엽살포처리에서 'Dream Land Rose'의 초장은 tebuconazole, diniconazole, bitertanol에서 크게 감소하였으며 특히, tebuconazole이 가장 큰 왜화효과를 보였고 지상부 생체중도 가장 적었다. 꽃의 직경, 생체중, 건물중도 tebuconazole 고농도에서 현저하게 감소하였다. 한편, 개화소요일수는 약제처리에 의한 영향을 받지 않았다. 'Dream Land Scarlet'의 초장도 모든 처리에서 감소하였고, 특히 tebuconazole에서 현저한 감소를 보였다. 개화소요일수는 diniconazole에서 단축되었다. 토양관주처리에서 'Dream Land Rose'의 초장은 diniconazole과 myclobutanil에서 감소하였으나 diniconazole이 더 효과적이었다. 개화소요일수는 diniconazole에서 단축되었다. 'Dream Land Scarlet'의 초장은 모든 처리에서 감소하였으며, mycrobutanil $300mg{\cdot}L^{-1}$에서 극심한 억제현상을 보여서 개화가 이루어지지 못하였다. 개화소요일수는 diniconazole에서 증가하는 경향을 보였다.

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LAND COVER CLASSIFICATION BY USING SAR COHERENCE IMAGES

  • Yoon, Bo-Yeol;Kim, Youn-Soo
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2008년도 International Symposium on Remote Sensing
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    • pp.76-79
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    • 2008
  • This study presents the use of multi-temporal JERS-1 SAR images to the land cover classification. So far, land cover classified by high resolution aerial photo and field survey and so on. The study site was located in Non-san area. This study developed on multi-temporal land cover status monitoring and coherence information mapping can be processing by L band SAR image. From July, 1997 to October, 1998 JERS SAR images (9 scenes) coherence values are analyzed and then classified land cover. This technique which forms the basis of what is called SAR Interferometry or InSAR for short has also been employed in spaceborne systems. In such systems the separation of the antennas, called the baseline is obtained by utilizing a single antenna in a repeat pass

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토양측정망 운영 결과 분석 연구 (Analysis on Monitoring Results of Korean Soil Monitoring Network)

  • 정승우
    • 한국지하수토양환경학회지:지하수토양환경
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    • 제15권2호
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    • pp.18-23
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    • 2010
  • Usability of soil quality monitoring network for ascertaining soil quality changes was evaluated by analysing soil quality monitoring results. Tolerance limits of soil quality monitoring results from 1997 to 2007 were calculated and compared with Korean soil quality standards. This study determined that soil quality was changed if the upper 95% tolerance limit value was greater than the soil quality standard. Fluoride most frequently exceeded the soil quality standard and nickel, zinc, arsenic, copper, lead and cadmium were followed. Analysis on land use showed that tolerance limits of industrial land use most frequently exceeded the soil quality standards and residential, road and various land uses then frequently exceeded. Tolerance limits of land uses expecting high contaminant loads frequently exceeded the soil quality standards. This fact imply that the soil quality monitoring network generates reasonable data to represent change in Korean soil quality. This study also suggested that representative sampling from well identified points should be done to improve data reliability and accurately ascertain soil quality changes.

EXTRACTION OF LAND COVER INFORMATION BY USING SAR COHERENCE IMAGES

  • Yoon, Bo-Yeol;Kim, Youn-Soo
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2007년도 Proceedings of ISRS 2007
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    • pp.475-478
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    • 2007
  • This study presents the use of multi-temporal JERS-1 SAR images to extract the land cover information and possibility. So far, land cover information extracted by high resolution aerial photo and field survey. The study site was located in Non-san area. This study developed on multi-temporal land cover status monitoring and coherence information mapping can be processing by L band SAR image. From July, 1997 to October, 1998 JERS SAR images (9 scenes) coherence values are analyzed and then extracted land cover information factors, so on. This technique which forms the basis of what is called SAR Interferometry or InSAR for short has also been employed in spaceborne systems. In such systems the separation of the antennas, called the baseline is obtained by utilizing a single antenna in a repeat pass

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IKONOS 영상자료를 이용한 농업관련 토지피복 분류기준 설정 연구 (Standardizing Agriculture-related Land Cover Classification Scheme Using IKONOS Satellite Imagery)

  • 홍성민;정인균;김성준
    • 한국GIS학회:학술대회논문집
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    • 한국GIS학회 2004년도 GIS/RS 공동 춘계학술대회 논문집
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    • pp.261-265
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    • 2004
  • The purpose of this study is to present a standardized scheme for providing agriculture-related information at various spatial resolutions of satellite images including Landsat+ETM, KOMPSAT-1 EOC, ASTER VNIR, and IKONOS panchromatic and multi-spectral images. The satellite images were interpreted especially for identifying agricultural areas, crop types, agricultural facilities and structures. The results were compared with the land cover/land use classification system suggested by Ministry of Construction & Transportation based on NGIS (National Geographic Information System) and Ministry of Environment based on satellite remote sensing data. As a result, high-resolution agricultural land cover map from IKONOS imageries was made out. The results by IKONOS image will be provided to KOMPSAT-2 project for agricultural application.

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종합토지정보시스템 도입에 관한 연구 (A Study on Introducing Parcel-Based Land Information System)

  • 김상수;나희철
    • Spatial Information Research
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    • 제1권1호
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    • pp.55-61
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    • 1993
  • 1980년대 후반부터 시설물관리기관과 지방도시들이 시설물관리차원의 도형 정보시스템을 구축하면서 전국토에 대한 정밀하고 통일된 도형기초에 대한 수요가 발생하였다. 1990년대가 되면서 부터는 국토관리와 이용 및 효과적인 의사결정을 지원하기 위한 국토정보시스템 구촉의 필요성이 대두되었다. 따라서 현행도면중 최대축척인 지적도를 도형기초로 하고 지적도의 지번정보를 이용하여 행정, 체신, 통계 등과 연계할 수 있는 종합토지정보시스템(Parcel-Based Land Information System) 구축을 위한 연구가 진행중에 있다.

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한국의 기상및 토양조건과 토지능력구분 (Land Capability Classification of Upland of the Base of Soii and Meteorological Factors in Korea.)

  • 김학영
    • 한국농공학회지
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    • 제7권2호
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    • pp.935-943
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    • 1965
  • 1. Nation wide soil surver is going of from Oct't by Unkup. According to the sever years program of national high hueld of food production campaign. 2. About eighry of new soil surveryors wee assigned to provincial office of Unkup. 3. Land capability classifieation comes from U.S.D.A method. Bur we fells most adequate land classification should be studied and set uo of the real Korean Natural situation. 4. This theory has been studied by the Unkup soil survey staffs.

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공간사용 규제가 택지가격에 미치는 영향에 대한 공간가중회귀분석 - 장유 신도시지역을 대상으로- (A Geographically Weighted Regression on the Effect of Regulation of Space Use on the Residential Land Price - Evidence from Jangyu New Town -)

  • 강순덕;박세운;정태윤
    • 경영과정보연구
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    • 제37권3호
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    • pp.27-47
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    • 2018
  • 본 연구에서는 공간적 의존성을 반영한 공간가중회귀분석 방법을 이용하여 용도지역과 같은 공간사용규제가 택지가격에 미치는 영향을 분석하였다. 통제변수로는 도로접면, 토지의 형상, 면적 및 경과연수를 사용하였다. 본 연구는 신도시지역인 경남 김해시 장유지역의 토지거래 실거래가격을 이용하여 분석하였다. 분석결과 전통적인 회귀분석의 결과와 공간가중회귀분석의 결과는 크게 다르지 않았다. 그러나 공간가중회귀모형의 분석 잔차의 Moran's Index가 OLS모형의 잔차보다 26% 감소하여 잔차의 자기상관이 상당히 개선되었고 설명력도 약간 높아졌다. 전통적 회귀분석 및 공간가중회귀분석에서 점포 겸용 택지 더미변수는 음의 부호를 나타내 기준변수인 주거전용지역 택지보다 택지가격이 낮은 것으로 나타났다. 이것은 점포 겸용 택지는 용적률과 건폐율이 높아서 토지의 공간적 활용성은 높지만 평지에 위치해 있어 택지로서의 메리트가 크지 못한 반면에, 전용주거지역은 산자락의 완만한 언덕에 위치하여 좋은 경관과 깨끗한 공기를 누릴 수 있기 때문으로 추정된다. 이와 같은 실증분석결과로 볼 때 단순히 용적률과 건폐율을 높이는 것보다는 녹지와 공원을 확충시키는 것이 택지의 가치 상승에 더 많은 기여를 할 수 있을 것으로 보인다는 지방자치단체와 건설회사에 대한 시사점을 제공한다. 근린생활시설용지 더미변수는 유의적인 양의 회귀계수를 나타내, 다른 용도지역에 비하여 택지가격이 높은 것으로 나타났는데, 이것은 근린생활시설용지가 용적률이 점포 겸용 택지와 전용주거지역보다 훨씬 높고 5층까지 건축이 가능하기 때문인 것으로 추정된다. 예상과 같이 택지 구매자는 중로에 접한 택지를 선호하는 것으로 나타났다. 광로한면은 소음 및 매연으로 인해 주거환경이 좋지 않고 차량출입이 불편하다는 단점이 있다. 좁은 도로는 소음 및 매연이 적고 사생활이 보호된다는 장점이 있지만 도로 양쪽에 차량이 주차되면, 통행에 많은 장애가 발행하여 불편함을 초래할 수 있다. 경과연수는 음의 부호를 보여 시간에 따라 택지가격이 하락되는 것으로 나타났다. 이는 2008년 글로벌 금융위기 당시 장유지역의 택지가격이 김해의 다른 지역에 비하여 하락했기 때문으로 보인다.

기후변화 시나리오 (A1B)에 따른 농업용 저수지 유역의 미래 토지피복변화 예측 및 논 면적 변화 특성 분석 (Prediction of Land-cover Changes and Analysis of Paddy Fields Changes Based on Climate Change Scenario (A1B) in Agricultural Reservoir Watersheds)

  • 오윤경;유승환;이상현;박나영;최진용;윤동균
    • 한국농공학회논문집
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    • 제54권2호
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    • pp.77-86
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    • 2012
  • This study was aim to predict future land-cover changes and to analyze regional land-cover changes in irrigation areas and agricultural reservoir watersheds under climate change scenario. To simulate the future land-cover under climate change scenario - A1B of the SRES (Special Report on Emissions Scenarios), Dyna-CLUE (Conversion of Land Use Change and its Effects) was applied for modeling of competition among land-use types in relation to socioeconomic and biophysical driving factors. For the study areas, 8 agricultural reservoirs were selected from 8 different provinces covering all around nation. The simulation results from 2010 to 2100 suggested future land-cover changes under the scenario conditions. For Madun reservoir in Gyeonggi-do, total decrease amount of paddy area was a similar amount of 'Base demand scenario' of Water Vision 2020 published by MLTMA (Ministry of Land, Transport and Maritime Affairs), while the decrease amounts of paddy areas in other sites were less than the amount of 'High demand scenario' of Water Vision 2020. Under A1B scenario, all the land-cover results showed only slight changes in irrigation areas of agricultural reservoirs and most of agricultural reservoir watersheds will be increased continuously for forest areas. This approach could be useful for evaluating and simulating agricultural water demand in relation to land-use changes.