单词	spodic
释义	spodic /ˈspɒdɪk / adjective Soil Science Denoting a soil horizon rich in aluminium oxide and organic matter and typically also containing iron oxide, produced by percolating water.The spodic horizon can be destroyed under cultivation, particularly if lime and nitrogen are applied.... It is reasonable to expect the spodic horizon to influence pond hydrology and chemistry. The spodic horizon is characterized by an accumulation of organic material and/or iron and aluminium. Origin 1960s: from Greek spodos 'ashes' + -ic.
随便看	middle C middle chief middle class middle-classdom middle-classer middle-class examination middle-classism middle-classness middle-class school Middle Comedy middle common room Middle Congo middle cut middle dish middle distance middle distillate Middle Dutch middle ear middle earth Middle East Middle Eastern Middle Easterner middle eight Middle Empire Middle England

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