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논문 기본 정보

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(Northwest A&F University, China) (Northwest A&F University, China) (Northwest A&F University, China)
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한국토양비료학회 한국토양비료학회 학술발표회 초록집 20th WORLD CONGRESS OF SOIL SCIENCE
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    초록·키워드

    The existed soil water retention curve models, like Brooks-Corey model (BC), Campbell model (C) and the pore-solid fractal model (PSF), are often deficient in the determination of parameters, which can only be fit with a serious of measured data. This limits the advancement and application of these models, especially in case of less measured data. In this study, a modified pore-solid fractal model (M-PSF), based on the theory of the pore-solid fractal model (PSF), was presented, which characterized by a pair of random measured values Θ₀ and h₀. The suggested M-PSF not only expands the parameters range than the BC and the PSF, but also can be parameterized with easily retrievable parameters. Using the data sets of 12 soil textures from the Unsaturated Soil Hydraulic Database (UNSODA), the M-PSF was tested, and predicted well with the measured data. The preliminary analysis suggests that if there are multiple levels of Θ₀ and h₀, the middle levels of values may perform better for the M-PSF. It is also easily found that the b ... 전체 초록 보기

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