Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Farmland Use Mapping Using High Resolution Images and Land Use Change Analysis

고해상도 영상을 이용한 농경지 지도 작성 및 토지이용 변화 분석

  • Lee, Kyungdo (Soil and Fertilizer Management Division, National Academy of Agricultural Science, Rural Development Administration) ;
  • Hong, Sukyoung (Soil and Fertilizer Management Division, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Yihyun (Soil and Fertilizer Management Division, National Academy of Agricultural Science, Rural Development Administration)
  • 이경도 (농촌진흥청 국립농업과학원 토양비료과) ;
  • 홍석영 (농촌진흥청 국립농업과학원 토양비료과) ;
  • 김이현 (농촌진흥청 국립농업과학원 토양비료과)
  • Received : 2012.10.31
  • Accepted : 2012.11.30
  • Published : 2012.12.31
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Abstract

This study aims to make a "farmland use map" using high-resolution images and to analyze the land use change for about 8 years in Goyang, Namyangju, and Yongin cities. We have made a new numerical map named as a farmland use map using high-resolution images taken mostly in 2007 and digital topographical maps in Goyang, Namyangju, and Yongin cities near metropolitan areas to classify farmland use of paddy, upland, plastic film house, and orchard. We also made a land use map by overlaying the farmland use map and the land registration map of each city made in 2007, and compared the land use map made by RDA (Rural Development Administration) in 1999. Paddy areas decreased at a range of 3,000 to 5,000 ha during 8 years and were changed to residential areas in the cities. Upland and orchard areas also showed similar tendency and were changed to residential areas as well. On the other hand, the areas of the plastic film houses in the cities showed an increase or same in size. It is suggested that farmland use map can be broadly used as a base map for various survey projects including soil survey, statistics, and farmland information management.

급격한 토지이용의 변화가 진행되고 있는 수도권 인근의 고양시, 남양주시, 용인시를 대상으로 고해상도 영상과 수치지도를 활용하여 논, 밭, 시설재배지, 과수원의 면적과 형상, 이용 현황을 파악하기 위한 농경지 지도를 작성하여 기존 수치지도와 비교한 결과 기존 수치지도에 비해 농경지의 이용 현황을 보다 세부적으로 정확하게 분류할 수 있었다. 또한, 농경지 지도와 수치 지적도의 농경지 부분을 중첩하여 '07년 토지이용도로 갱신하고 '99년에 작성된 토지이용도와 비교한 결과 3개 시 모두 조사기간 동안 논 면적이 3,000~5,000 ha 정도 크게 감소한 것으로 나타났으며, 밭과 과수원도 논과 함께 주거지로 전용되면서 감소하는 추세였다. 그러나 집약적인 재배가 가능하여 고소득이 기대되고 다른 지목으로 변경이 용이한 시설재배지의 경우에는 면적이 비슷하거나 증가한 경향을 보였다. 향후 고해상도 영상을 활용한 농경지 지도의 확대 구축과 이를 활용한 토지이용도 제작은 토양 조사 등 각종 조사 사업의 최신 자료로 활용 될 수 있을 뿐 아니라, 정확한 경지면적 산출을 통해 농업통계 및 농업정책 자료로써 효율적인 경지관리에 활용될 수 있을 것으로 판단된다.

Keywords

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