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논문 기본 정보

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

    Most soil erosion models are essentially steady-state models. Thus, they have limitations in real-time simulations of soil erosion. Cellular Automata (CA), with a 'from down to up' dynamic modeling framework, is capable of simulating the spatial-temporal evolutionary process of complex geographical systems. Here, the critical conditions for rill erosion were determined through laboratory experiments and through a one-dimensional numerical simulation (CA-rill model). Rill erosion on a loess slope of 15o under multiple rainfall events was investigated in indoor experiments with artificial precipitation. The development of rill erosion was presented graphically with a 3-D laser scanner. Slope rill erosion was also simulated with an existing model of CA-Rill under the same conditions. The simulated and measured values of total runoff were not significantly different (paired t test, p=0.753>0.05), but there existed significant difference for total erosion (paired t test, p=0.032<0.05). In addition, the model was able to sim ... 전체 초록 보기

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