| 释义 |
‖ orterde Soil Sci.|ˈɔrtɛrdə|
[G.]
(See quot. 1939.)
1930Bull. Wisconsin Geol. & Nat. Hist. Surv. LXXVIIa. 86 Dark rusty brown sandy loam containing coffee-brown cemented lumps (the orterde of the Podsol). 1936J. S. Joffe Pedology vi. 132 These chemical compounds are responsible for the condition of ortstein and orterde (hard⁓pan). 1939U.S. Dept. Agric. Yearbk. 1938 1173 Ortstein, hard irregularly cemented, dark-yellow to nearly black sandy material formed by soil-forming processes in the lower part of the solum. Similar material not firmly cemented is known as orterde. 1965B. T. Bunting Geogr. Soil xiii. 152 Modal iron podsols are the true forest podzol, usually under spruce, with deep F1, 2, 3 layers, and deep orterde rather than pan. |