Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Construction of Database for Application of APEX Model in Korea and Evaluation of Applicability to Highland Field

APEX 모델의 국내 적용을 위한 데이터베이스 구축 및 고랭지 밭에 대한 적용성 평가

  • Koo, Ja-Young (Department of Regional Infrastructures Engineering, Kangwon National University) ;
  • Kim, Jonggun (Department of Regional Infrastructures Engineering, Kangwon National University) ;
  • Choi, Soon-Kun (Climate Change and Agroecology Division, National Institute of Agricultural Science) ;
  • Kim, Min-Kyeong (Climate Change and Agroecology Division, National Institute of Agricultural Science) ;
  • Jeong, Jaehak (Texas A&M AgriLife Research, Texas A&M University) ;
  • Lim, Kyoung Jae (Department of Regional Infrastructures Engineering, Kangwon National University)
  • Received : 2017.10.19
  • Accepted : 2017.10.24
  • Published : 2017.11.30
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Abstract

The Agricultural Policy/Environmental eXtender (APEX) model was developed to extend EPIC's capabilities of simulating land management impacts for small-medium watershed and heterogeneous farms. APEX is a flexible and dynamic tool that is capable of simulating a wide array of management practices, cropping systems, and other land uses across a broad range of agricultural landscapes. APEX have its own agricultural environmental database including operation schedule, soil property, and weather data etc., by crops. However, agriculture environmental informations the APEX model has is all based on U.S. As this can cause malfunction or improper simulation while simulating highland field. In this study, database for APEX model to be utilized for South Korea established with 44,814 agriculture fields in Pyeongchang-gun, Korea from 2007 to 2016. And assessed domestic applicability by comparing T-P unit load criteria presented by National Institution of Environmental Research and result of APEX model. As a result of APEX model simulation, average T-P value for decade was 6.18. Average T-P of every year except 2011 was in range of 5.37~10.43 and this is being involved into criteria presented by National Institution of Environmental Research. It is analyzed that adjusting slope factor can make the model applicable for domestic agricultural environment.

Keywords

References

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