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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.11
- 수록면
- 510 - 521 (12page)
이용수
초록· 키워드
오류제보하기
Water is closely linked to agricultural productivity and is an essential resource for agriculture. Climate change and drought are causing water scarcity, and that has an enormous impact on agricultural productivity. Efficient water management methods are needed to prepare for water shortages. The lysimeter is well known as a facility for precisely measuring water and nutrient movement in the soil. Therefore, this study was conducted to investigate the evapotranspiration of different paddy soils using weighable lysimeter and to evaluate the relationship between the evapotranspiration estimated by weighable lysimeter and the reference evapotranspiration estimated by FAO Penman-Monteith equation and Hargreaves equation. This study was performed in lysimeter facility located at the National Institute of Agricultural Sciences, Rural Development Administration, and used lysimeter weight values and meteorological data measured from 1st January to 30th April in 2018. The daily evapotranspiration estimated by the lysimeter was ET<SUB>LY</SUB>, the reference evapotranspiration estimated by FAO Penman-Monteith equation was ET<SUB>PM</SUB>, and the reference evapotranspiration estimated by Hargreaves equation was ETHS. ET<SUB>LY</SUB> showed that loam (L) was higher than that of sandy loam(SL) and silty clay loam (SiCL). The accumulated evapotranspiration from 1st January to 30th April in 2018 was in the order of L (235 mm) > SL (231 mm) > SiCL (192 mm). Solar radiation showed a higher coefficient of determination (R<SUP>2</SUP>) than mean temperature in the correlation between the meteorological data and ETLY. The relationship between ET<SUB>LY</SUB> and ET<SUB>HS</SUB> showed a relatively low coefficient of determination, whereas the coefficient of determination in the relationship between ET<SUB>LY</SUB> and ET<SUB>PM</SUB><SUB></SUB> showed relatively high fitness for SiCL (0.631), L (0.860) and SL (0.884). Precise measurement and management of soil moisture using lysimeter are expected to be possible.
목차
ABSTRACT
Introduction
Materials and Methods
Results and Discussion
Conclusions
References
참고문헌 (31)
참고문헌 신청
Allen, R.G., L.S. Pereira, D. Raes, and M. Smith. 1998. FAO irrigation and drainage paper, No. 56, Crop evapotranspiration: guidelines for computing crop water requirements. Food and Agriculture Organization of the United Nations, Rome, Italy.
Anapalli, S.S., L.R. Ahuja, P.H. Gowda, L. Ma, G. Marek, S.R. Evett, and T.A. Howell. 2016. Simulation of crop evapotranspiration and crop coefficients with data in weighing lysimeters. Agric. Water Manag. 177:274-283.
Blake, G.R. and K.H. Hartge. 1986. Bulk density in methods of soil analysis. In: A. Klute (ed.). Method of soil analysis. Part 1. (2nd edition). American Society of Agronomy, Madison, Wisconsin, USA.
Chae, J.C. and S.W. Kim. 2001. Effect of soil texture on rice growth and paddy soil percolation under lysimeter condition. Korean J. Crop Sci. 46:236-240.
Chartzoulakis, K. and M. Bertaki. 2015. Sustainable water management in agriculture under climate change. Agric. Agric. Sci. Procedia 4:88-98.
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UCI(KEPA) : I410-ECN-0101-2019-523-000170033