Soil Science. (Plural solums, sola.) The upper part of a soil profile, in which the soil-forming processes predominantly occur; spec. the A and B…
| 单词 | θ6103 |
| 释义 | the world > the earth > structure of the earth > constituent materials > earth or soil > [noun] > horizon > specific horizons (4) solum1928 Soil Science. (Plural solums, sola.) The upper part of a soil profile, in which the soil-forming processes predominantly occur; spec. the A and B… recurrence surface1938 a horizon between highly and slightly humified peat in a bog, indicative of a transition between diminished and active peat growth resulting from… palaeosol1950 A soil horizon or rock which was formed as a soil at some time in the past. palaeosoil1970 = palaeosol, n. |
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