Journal of the Korean Association of Geographic Information Studies (한국지리정보학회지)

The Korean Association of Geographic Information Studies (한국지리정보학회)
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Analyzing Relationship between Satellite-Based Plant Phenology and Temperature

위성영상을 기반으로 도출된 식물계절과 기온요인과의 상관관계 분석

  • CHOI, Chul-Hyun (Bureau of Ecological Conservation Research, National Institute of Ecology) ;
  • JUNG, Sung-Gwan (Dept. of Landscape Architecture, Kyungpook National University) ;
  • PARK, Kyung-Hun (Dept. of Environmental Engineering, Changwon National University)
  • 최철현 (국립생태원 생태보전연구본부) ;
  • 정성관 (경북대학교 조경학과) ;
  • 박경훈 (창원대학교 환경공학과)
  • Received : 2015.11.07
  • Accepted : 2016.01.12
  • Published : 2016.03.31
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Abstract

Climate change are known to have had enormous impacts on plant phenology and thus to have damage on other species which are interacted within ecosystem. In Korea, however, it is difficult to analyze the relationship between climate and phenology due to the limitation of measurement data of plant phenological records. In this study, to be effective analysis of SOG(start of growing season), we used phenological transition dates by using satellite data. Then, we identified the most influential variable in variation of SOG throughout the relationship between SOG and temperature factors. As a result, there is a strong correlation between the SOG and April temperature, TSOGmin($3^{\circ}C$, 12days). This study is expected to be used for predicting plant phenological change using climate change scenario data.

기후변화는 식물계절주기에 큰 영향을 미쳤으며, 이로 인해 유기적인 상호관계 하에 있는 생태계 내 다른 생물들까지도 피해를 받는다는 것이 밝혀졌다. 그러나 국내의 경우 식물계절 조사 자료의 구축이 미흡하여 기후와 식물계절간 관계와 관련된 연구를 수행하는데 있어 어려움이 있다. 이에 본 연구에서는 위성영상을 이용한 식물계절 분석방법을 사용하여 효율적으로 국내 산림의 생육개시일을 도출하였다. 또한 생육개시일-기온요인간 상관관계를 분석하여 생육개시일 변동에 가장 영향력이 큰 변수를 도출해보고자 하였다. 분석결과, 국내 산림지역의 생육개시일은 4월 평균기온 그리고 TSOGmin($3^{\circ}C$, 12일)과 가장 상관성이 큰 것으로 나타났다. 이러한 결과는 추후 미래의 기후변화 시나리오 자료를 통해 식물계절 변화를 예측할 수 있는 유용한 자료로 사용될 수 있을 것으로 판단된다.

Keywords

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