한국수자원학회:학술대회논문집 (Proceedings of the Korea Water Resources Association Conference)
- 한국수자원학회 2019년도 학술발표회
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- Pages.155-155
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- 2019
Calibration of APEX-Paddy Model using Experimental Field Data
- Mohammad, Kamruzzaman (Dept. of Agiculture Eng., Gyeongsang National University) ;
- Hwang, Syewoon (Dept. of Agiculture Eng., Gyeongsang National University) ;
- Cho, Jaepil (APEC Climate Center) ;
- Choi, Soon-Kun (Climate Change and Agroecology Division, National Institute of Agricultural Science) ;
- Park, Chanwoo (Dept. of Agiculture Eng., Gyeongsang National University)
- 발행 : 2019.05.29
초록
The Agricultural Policy/Environmental eXtender (APEX) models have been developed for assessing agricultural management efforts and their effects on soil and water at the field scale as well as more complex multi-subarea landscapes, whole farms, and watersheds. National Academy of Agricultural Sciences, Wanju, Korea, has modified a key component of APEX application, named APEX-Paddy for simulating water quality with considering appropriate paddy management practices, such as puddling and flood irrigation management. Calibration and validation are an anticipated step before any model application. Simple techniques are essential to assess whether or not a parameter should be adjusted for calibration. However, very few study has been done to evaluate the ability of APEX-Paddy to simulate the impact of multiple management scenarios on nutrients loss. In this study, the observation data from experimental fields at Iksan in South Kora was used in calibration and evaluation process during 2013-2015. The APEX auto- calibration tool (APEX-CUTE) was used for model calibration and sensitivity analysis. Four quantitative statistics, the coefficient of determination (