Denoting a soil horizon rich in aluminium oxide and organic matter and typically also containing iron oxide, produced by percolating water.
〔土壤学〕淋淀层
Example sentencesExamples
It is perched above the spodic horizon early in the summer rainy season and after heavy rainfall in other seasons.
The spodic horizon is characterized by an accumulation of organic material and/or iron and aluminium.
In comparison, in an upland sandy soil the spodic horizon is much thinner and poorly developed, and the area below that horizon is a colored sandy layer, rather than gray.
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.