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The mathematical, two-dimensional model described here allows study of the effects of soil surface shape, produced by different cultivation techniques, upon soil temperatures. It uses a terrain-following coordinate system and considers environmental conditions, soil physical characteristics, and the slope and aspect of the surface. I compare calculated temperatures with observed ones in a ridge, a furrow, and a horizontal surface and show that soil temperatures are significantly influenced by both slope and aspect. The results indicate that the numerical model predicts the soil temperatures accurately in the three soil shapes tested.
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Y. Mahrer (1982) studied this question.
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