Journal of the Korean Geographical Society (대한지리학회지)

The Korean Geographical Society (대한지리학회)
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The Land-cover Changes and Pattern Analysis in the Tidal Flats Using Post-classification Comparison Method: The Case of Taean Peninsula Region

선분류 후비교법을 이용한 간석지의 토지피복 변화 및 패턴 분석 - 태안반도 지역을 사례로 -

  • Jang, Dong-Ho (Dept. of Geography, Kongju National University) ;
  • Kim, Chan-Soo (Dept. of Applied Statistics, Kongju National University) ;
  • Park, Ji-Hoon (Dept. of Geography Education, Kongju National University)
  • Received : 2010.03.26
  • Accepted : 2010.04.16
  • Published : 2010.04.30
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Abstract

This study investigated the land-cover changes in the tidal flat of the Taean peninsula due to man-made environmental changes between 1972 and 2008, through time-series analysis based on a modified post-classification comparison method and multi-temporal satellite images. The analysis revealed that the land-cover of the tidal flat has changed from tidal flat to wetland and from wetland to paddy field between 1972 and 2008. Also, the pattern of detailed land-cover changes is as follows: tidal flat to wetland; lake and saltpan to bare land and paddy field. The accurate classification of each image is needed for the application of the post-classification comparison method. The overall accuracy of the classified images was found to be 95.33% on average, and the Kappa value was 0.941 on average.

이 연구는 위성영상 자료(1972~2008년)를 이용하여 인위적인 환경변화에 따른 태안반도 간석지의 토지피복 변화를 시계열분석하고, 그 변화 패턴을 고찰하고자 하였다. 선분류 후비교법을 이용한 시기별 토지피복 변화를 분석한 결과, 1972년에서 2008년 사이에 태안반도 간석지의 토지피복은 갯벌에서 습지, 습지에서 논으로의 변화가 발생하였다. 세부적인 토지피복 변화 패턴을 분석하기 위해 변형된 선분류 후비교법을 이용하여 각각의 영상을 분석한 결과 태안반도 간석지는 갯벌 $\rightarrow$ 습지 호수 및 염전 $\rightarrow$ 나대지 $\rightarrow$ 논 $\rightarrow$ 나대지로 변하였음을 분석할 수 있었다. 선분류 후비교법의 적용을 위해서는 각 영상의 정확한 분류가 반드시 요구되는데, 분류된 영상의 전체정확도는 평균 95.33%로 나타났고, 카파값은 평균 0.941로 나타났다.

Keywords

Acknowledgement

Supported by : 한국연구재단

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