APEX 모델을 이용한 옥수수-가을배추 재배지의 시비 수준별비점오염 부하량 평가 (Evaluation of Non-Point Pollution Loads in Corn-Autumn Kimchi Cabbage Cultivation Areas by Fertilizer Application Levels Using the APEX Model)

서지정보

· 발행기관 : 한국농공학회
· 수록지 정보 : 한국농공학회논문집 / 66권 / 5호 / 15 ~ 27페이지
· 저자명 : 이종문, 엽소진, 전상민, 이병모, 양예린, 최순군

초록

Agriculture is recognized as an important anthropogenic cause of non-point source loads. Improved understanding of non-point source loads accordingto fertilization practices can promote climate change and eutrophication mitigation. Thus, this study evaluated the impact of conventional and standardfertilization practices on non-point pollution (NPP) loads in a dual-cropping system, utilizing the Agricultural Policy/Environmental eXtender (APEX)model. Our research objectives were twofold: firstly, to calibrate and validate the APEX model with observed data through experiments from 2018 to2023; and secondly, to compare the NPP loads under conventional and standard fertilization practices. The model calibration and validation showedsatisfactory performance in simulating nitrogen (N) and phosphorus (P) loads, illustrating the model’s applicability in a Korean agricultural setting. Thesimulation results under conventional fertilization practices revealed significantly higher NPP loads compared to the standard fertilization, with P loadsunder conventional practices being notably higher. Our findings emphasize the crucial role of recommended fertilization practices in reducing non-pointsource pollution. By providing a quantitative assessment of NPP loads under different fertilization practices, this study contributes valuable informationto sustainable nutrient management in agricultural systems facing the dual challenges of climate change and environmental conservation.

영어초록

Agriculture is recognized as an important anthropogenic cause of non-point source loads. Improved understanding of non-point source loads accordingto fertilization practices can promote climate change and eutrophication mitigation. Thus, this study evaluated the impact of conventional and standardfertilization practices on non-point pollution (NPP) loads in a dual-cropping system, utilizing the Agricultural Policy/Environmental eXtender (APEX)model. Our research objectives were twofold: firstly, to calibrate and validate the APEX model with observed data through experiments from 2018 to2023; and secondly, to compare the NPP loads under conventional and standard fertilization practices. The model calibration and validation showedsatisfactory performance in simulating nitrogen (N) and phosphorus (P) loads, illustrating the model’s applicability in a Korean agricultural setting. Thesimulation results under conventional fertilization practices revealed significantly higher NPP loads compared to the standard fertilization, with P loadsunder conventional practices being notably higher. Our findings emphasize the crucial role of recommended fertilization practices in reducing non-pointsource pollution. By providing a quantitative assessment of NPP loads under different fertilization practices, this study contributes valuable informationto sustainable nutrient management in agricultural systems facing the dual challenges of climate change and environmental conservation.

참고자료

· 없음