A black or dark brown soil formed from volcanic material, with an A horizon rich in organic material.
More example sentences
- The shallow soils (andisol) are derived from fluvial gravel overlain by multiple Holocene volcanic ash deposits and aeolian dust.
- Pots were filled with soil (Humic haplic andosol) of high P-fixing capacity that had been collected from two fields.
- However, a strong relation between AEM-P and the organic matter content of the andosols emerged.