| 单词 | soil type |
| 释义 | > as lemmassoil type soil type n. a particular kind of soil; spec. in Soil Science, a subdivision of a soil series made according to the texture of the surface horizon, and representing the lowest unit in the system of classification; (see also quot. 1928 for soil biology n.). ΘΚΠ the world > the earth > structure of the earth > constituent materials > earth or soil > kind of earth or soil > [noun] grounda1398 soil1560 soil type1902 the world > the earth > structure of the earth > constituent materials > earth or soil > kind of earth or soil > [noun] > soil type or phase soil type1902 soil phase1939 1902 Instructions to Field Parties & Descr. Soil Types (U.S. Bur. of Soils) 15 The selection of a provisional name for each soil type should be made, and in all correspondence and reports this name should be used when speaking of the type. 1928 Proc. & Papers 1st Internat. Congr. Soil Sci. IV. 41 The soil type is a subdivision of the soil series based primarily and almost wholly on the texture of the surface soil... The term Soil Type has been used by some writers with a more inclusive meaning, sometimes to indicate the general characteristics of the soils of a region. 1954 W. D. Thornbury Princ. Geomorphol. iv. 78 A common soil series in the middle western states is the Miami series... Included in this series are such soil types as the Miami fine sandy loam, Miami loam, Miami silt loam, and Miami silty clay loam. 1967 M. J. Coe Ecol. Alpine Zone Mt. Kenya 71 Soil movement and deformation are of great significance in governing the distribution of soil types and in their effect on vegetation. 1972 J. G. Cruickshank Soil Geogr. i. 26 In 1904 the soil series was introduced to include all soil types developed on the same parent material. < as lemmas |
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