| 单词 |
Oxisol |
| 释义 |
Oxisol Soil Science.|ˈɒksɪsɒl|
[f. oxic a. + -sol.]
A type of stable, highly weathered mineral soil found in tropical regions (see quots. 1960, 1971). Cf. oxic a. 1.
1960Soil Classification: 7th Approximation (U.S. Dept. Agric.) xvi. 238/1 The Oxisols include the soils that, in recent years, have been called Latosols, and many, if not most, of those that have been called Ground-Water Laterite soils... All soils that have oxic horizons are included in the order. 1970P. M. Ahn W. African Soils (1974) vii. 221 The Oxisol order probably includes only the oldest and most highly weathered of West African soils. 1971Gloss. Soil Sci. Terms (Soil Sci. Soc. Amer.) 26/1 Oxisols, mineral soils that have an oxic horizon within 2 m of the surface or plinthite as a continuous phase within 30 cm of the surface, and that do not have a spodic or argillic horizon above the oxic horizon. (An order in the USDA soil taxonomy.) 1972[see oxic a. 1]. 1976D. Steila Geogr. Soils xi. 150 There are two main regions of Oxisol concentration: in South America surrounding the alluvial soils of the Amazon and in equatorial Africa. |
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