APEX 모델을 이용한 콩 재배 밭 전환 논의 물수지 특성 평가
Water Budget Assessment for Soybean Grown in Paddy Fields Converted to Uplands Using APEX Model
1
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
The expansion of upland crop cultivation in rice paddy fields is recommended by the Korean government to solve the problem of falling rice priceand reduction of rice farmer’s income due to oversupply of rice. However, water use efficiency is significantly influenced by the land use change frompaddy field to upland. Therefore, this study aimed to evaluate the water budget of soybean grown in using APEX (Agricultural Policy andEnvironmental eXtender) model. The amount of runoff was measured in a test bed located in Iksan, Jeollabu-do and used to calibrate and validate thesimulated runoff by APEX model. From 2019 to 2020, the water budget of soybean grown in uplands were estimated and compared with the one grownin paddy fields. The calibration result of AP EX model for runoff showed that R2(Coefficient of determination) and NSE (Nash-Sutcliffe efficiency)were 0.90 and 0.89, respectively. In addition, the validated results of R2and NSE were 0.81 and 0.62, respectively. The comparative study of eachcomponent in water budget showed that the amounts of evapotranspiration and percolation estimated by APEX model were 549.1 mm and 375.8mm,respectively. The direct runoff amount from upland was 390.1 mm, which was less than that from paddy fields. The average amount of irrigation waterwas 28.7 mm, which was very small compared to the one from paddy fields.
Abstract
The expansion of upland crop cultivation in rice paddy fields is recommended by the Korean government to solve the problem of falling rice priceand reduction of rice farmer’s income due to oversupply of rice. However, water use efficiency is significantly influenced by the land use change frompaddy field to upland. Therefore, this study aimed to evaluate the water budget of soybean grown in using APEX (Agricultural Policy andEnvironmental eXtender) model. The amount of runoff was measured in a test bed located in Iksan, Jeollabu-do and used to calibrate and validate thesimulated runoff by APEX model. From 2019 to 2020, the water budget of soybean grown in uplands were estimated and compared with the one grownin paddy fields. The calibration result of AP EX model for runoff showed that R2(Coefficient of determination) and NSE (Nash-Sutcliffe efficiency)were 0.90 and 0.89, respectively. In addition, the validated results of R2and NSE were 0.81 and 0.62, respectively. The comparative study of eachcomponent in water budget showed that the amounts of evapotranspiration and percolation estimated by APEX model were 549.1 mm and 375.8mm,respectively. The direct runoff amount from upland was 390.1 mm, which was less than that from paddy fields. The average amount of irrigation waterwas 28.7 mm, which was very small compared to the one from paddy fields.
참고문헌 (29)
- Bhandari, A. B., "Calibration of the APEX model to simulate management practice effects on runoff, sediment, and phosphorus loss", Journal of Environmental Quality, 46, pp.1332~1340 (2016)[DOI]
- Choi, S. K., "APEX-Paddy model development and climate change impact assessment for paddy rice", Ph.D., pp.2019
- 최용훈, "평지밭과 고랭지밭의 비점오염에 대한 분석과 비교", 한국물환경학회지, 25(5), pp.682~688 (2009), 한국물환경학회
- 장성주, "밭 공간분포와 개별·집단관정 이용을 고려한 밭용수 공급 경제성 분석", 한국지리정보학회지, 23(3), pp.192~207 (2020), 한국지리정보학회[DOI]
- 전지홍, "관개방법에 따른 논에서의 수문 및 수질특성에 미치는 영향", 생태와 환경, 38(1), pp.118~127 (2005), 한국수생태학회
- 지희정, "남부지방 논에서 사일리지용 옥수수 품종의 생육특성, 생산성 및 품질 비교", 한국초지조사료학회지, 29(1), pp.13~18 (2009), 한국초지조사료학회
- 정기열, "배수불량 경사지 논에서 배수개선에 따른 콩의 수분스트레스 반응해석", 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer), 44(5), pp.702~708 (2011), 한국토양비료학회
- 김민태, "콩 논 재배시 연차별 토양특성 및 생산력변화", 한국작물학회지, 52(4), pp.370~374 (2007), 한국작물학회
- 이은정, "농경지 불투수면 변화에 따른 유역 수문 영향 분석", 한국농공학회논문집, 51(6), pp.17~23 (2009), 한국농공학회
- 김학관, "장래 기후변화와 토지이용 변화에 따른 농촌소유역의 수문 영향 분석", 한국농공학회논문집, 53(6), pp.75~84 (2011), 한국농공학회
- Komatsu, Y., "Effects of slope gradient on runoff from bare-fallow purple soil in China under natural rainfall conditions", Journal of Mountain Science, 15(4), pp.738~751 (2018)[DOI]
- 이지완, "금강유역의 토지이용 변화가 수문·수질 건전성에 미치는 영향 평가", 한국지리정보학회지, 22(2), pp.82~96 (2019), 한국지리정보학회[DOI]
- "Ministry of Agriculture, Food and Rural Affairs"[URL]
- Moriasi, D. N., "Model evaluation guidelines for systematic quantification of accuracy in watershed simulations", Transactions of the ASABE, 50(3), pp.885~900 (2007)[DOI]
- Mu, W., "Effects of rainfall intensity and slope gradient on runoff and soil moisture content on different growing stages of spring maize", Water, 7(6), pp.2990~3008 (2015)[DOI]
- J. H. Neal, "The Effect of the Degree of Slope and Rainfall Characteristics on Runoff and Soil Erosion", Soil Science Society of America Journal, 2(C), pp.525~532 (1938), Wiley[DOI]
- 오양열, "신간척지 답전윤환 체계가 토양 특성 및 작물 생산성에 미치는 영향", 한국국제농업개발학회지, 28(3), pp.390~396 (2016), 한국국제농업개발학회[DOI]
- Sakaguchi, A., "Development and evaluation of a paddy module for improving hydrological simulation in SWAT", Agricultural Water Management, 137, pp.116~122 (2014)[DOI]
- 송정헌, "영농방법에 따른 논에서의 배출부하량 모의", 한국환경농학회지, 31(4), pp.318~327 (2012), 한국환경농학회[DOI]
- Tuppad, P., "Simulation of conservation practices using the APEX model", Applied engineering in agriculture, 26(5), pp.779~794 (2010)[DOI]
- U. S. Department of Agriculture Soil Conservation Service, "National Engineering Handbook Hydrology Section 4", pp.10.1~10.24 (1972), U.S. Government Printing Office
- U. S. Department of Agriculture Natural Resources Conservation Service, "Part 630 Hydrology National Engineering Handbook", pp.7.1~7.5 (2007), U.S. Government Printing Office
- van Genuchten, M. Th, "A closed-form equation for predicting the hydraulic conductivity of unsaturated soils", Soil Science Society of America Journal, 44(5), pp.892~898 (1980)[DOI]
- Wang, X., "An autocalibration tool for the Agricultural Policy Environmental eXtender(APEX)model", Transactions of the ASABE, 57(4), pp.1087~1098 (2014)[DOI]
- Williams, J. R., "Watershed models", pp.437~482 (2010), Tayler and Francis Group
- Yoon, K. S., "Changes of nutrient concentrations in root zone of a paddy plot and nutrient losses via infiltration during the rice cultivation period", Korean National Committee on Irrigation and Drainage, 9(1), pp.59~69 (2002)
- Zhang, B., "Simulating yield potential by irrigation and yield gap of rainfed soybean using APEX model in a humid region", Agricultural Water Management, 177, pp.440~453 (2016)[DOI]