单词 | soil association |
释义 | > as lemmassoil association soil association n. a group of soils that are related geographically or topographically, esp. ones derived from a common parent material. ΘΚΠ the world > the earth > structure of the earth > constituent materials > earth or soil > [noun] > soil group series1904 soil series1905 soil class1913 soil group1921 catena1935 soil association1939 1939 Yearbk. Agric. 1938 (U.S. Dept. Agric.) 1163 Soil association, group of soils, with or without common characteristics, geographically associated in an individual pattern. 1952 L. M. Thompson Soils & Soil Fertility vi. 87 The most important grouping of series, in so far as the farmer is concerned, is that of the soil association. 1970 E. M. Bridges World Soils v. 34/1 The Scottish soil scientists have grouped topographically related soils developed on one geological parent material into a soil association. < as lemmas |
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