지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.8
- 수록면
- 284 - 296 (13page)
이용수
초록· 키워드
오류제보하기
The reference evapotranspiration (ET0) is an essential indicator in explaining the water movement in the environment. In this study, we carried out to investigate the ET0, which were LYET (reference evapotranspiration calculated by the weighable lysimeter), PMET (reference evapotranspiration calculated by the FAO Penman-Monteith equation), and HSET (reference evapotranspiration calculated by the Hargreaves equation), respectively, and to estimate the relationship among the LYET, PMET, and HSET by regression analysis. Turfgrass was selected as the reference crop for calculating the ET0 by the lysimeters. The experiment period was from 1st June to 31st December in 2015. The ET0 in the lysimeter study area (National Institute of Agricultural Sciences, Wanju; WJ) was compared with that in the nearby Jeonju (JJ) location because of similar weather conditions. The relationship between PMET-WJ and PMET-JJ has the slope of 1.138, the coefficient of determination (R<SUP>2</SUP>) of 0.972, and the relationship between HSET-WJ and HSET-JJ has a slope of 0.934 (R<SUP>2</SUP>=0.984); thus the fitness was high in both cases. The relationship between LYET and PMET in both soils (fine loamy, FL; coarse loamy, CL) showed a relatively high R<SUP>2</SUP><SUP></SUP> as higher than 0.9, whereas the relationship between LYET and HSET showed relatively low fitness (0.676 - 0.736 of R<SUP>2</SUP>). According to the month, the fitness of PMET:LYET was higher than that of HSET:LYET, and in November and December, the R<SUP>2</SUP> of PMET:LYET was lowered to 0.7 or less as turfgrass entered into a dormant stage. The LYET, PMET, and HSET were found to have significantly high positive correlations with the minimum temperature, maximum temperature, mean temperature, and solar radiation (p < 0.01) and a significantly high negative correlation with mean humidity (p < 0.01). The estimated ET0 by the lysimeter experiment was evaluated to be highly conformable with the ET0 calculated by the FAO PM equations. Follow-up studies such as long-term monitoring are necessary to cope with the changing climate every year.
목차
ABSTRACT
Introduction
Materials and Methods
Results and Discussion
Conclusions
References
참고문헌 (48)
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.
Allen, R.G., L.S. Pereira, T.A. Howell, and M.E. Jensen. 2011a. Evapotranspiration information reporting: Ⅰ. Factors governing measurement accuracy. Agric. Water Manag. 98:899-920.
Allen, R.G., L.S. Pereira, T.A. Howell, and M.E. Jensen. 2011b. Evapotranspiration information reporting: Ⅱ. Recommended documentation. Agric. Water Manag. 98:921-929.
Allen, R.G., M. Smith, A. Perrier, and L.S. Pereira. 1994. An update for the definition of reference evapotranspiration. ICID Bulletin. 43(2):1-34.
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.
Allen, R.G., L.S. Pereira, T.A. Howell, and M.E. Jensen. 2011a. Evapotranspiration information reporting: Ⅰ. Factors governing measurement accuracy. Agric. Water Manag. 98:899-920.
Allen, R.G., L.S. Pereira, T.A. Howell, and M.E. Jensen. 2011b. Evapotranspiration information reporting: Ⅱ. Recommended documentation. Agric. Water Manag. 98:921-929.
Allen, R.G., M. Smith, A. Perrier, and L.S. Pereira. 1994. An update for the definition of reference evapotranspiration. ICID Bulletin. 43(2):1-34.
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.
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