| 释义 |
pedogenesis|pɛdəʊˈdʒɛnɪsɪs|
[f. pedo- + -genesis.]
Soil formation.
1936J. S. Joffe Pedology vi. 134 From the point of view of pedogenesis, the classification of the soil-forming processes, in their broad aspects, should hinge on the elements of climate. 1943Proc. Soil Sci. Soc. Amer. VII. 187/1 Most investigations on mechanical separates of the soil have dealt with the physical aspects of the subject, with no relation to pedogenesis and agropedologic implications. 1963D. W. & E. E. Humphries tr. Termier's Erosion & Sedimentation vi. 135 During pedogenesis (soil formation), the nature of the alteration of the titanium minerals depends more upon chemical diagenetic environmental conditions than on the nature of the parent rock. 1972J. G. Cruickshank Soil Geogr. ii. 42 As part of the role of climate in pedogenesis, its moisture and temperature components also affect the rate of decay and incorporation into the soil of surface organic litter.
Hence pedogeˈnetic, -geˈnetical adjs. = pedogenic a.; pedogeˈnetically adv.
1946Soil Sci. LXI. 389 Each soil series..is thus pedogenetically connected with ten other series. 1950Ann. Assoc. Amer. Geographers XL. 218 Within these pedogenetic regions no one of the weathering processes occurs exclusively. 1963D. W. & E. E. Humphries tr. Termier's Erosion & Sedimentation vi. 153 Butterlin (1958) believes that these soils are formed by the pedogenetic alteration of the limestones. 1978Nature 30 Mar. 477/3 Work on pedogenetical formations and Quaternary deposits in central and northern Dobrudja. Ibid. 28 Sept. 285/2 Deeper, pedogenetically differentiated profiles in relict areas immune from rapid denudation. |