Denoting a soil horizon rich in aluminium oxide and organic matter and typically also containing iron oxide, produced by percolating water.
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.