Q:

Why is volcanic soil so fertile?

A:

Quick Answer

Volcanic soils are fertile due to their non-crystalline mineral content that reacts favorably with growing organic matter. They are powdery in consistency and retain a high amount of water which is beneficial for plant growth.

Continue Reading

Full Answer

Volcanic soils are also called andisols. They are the result of accumulated volcanic ash following an eruption. These soils bond well with organic materials, and may form a nutrient-rich layer that facilitates the growth of plants on the surface. The minerals in the soil form a chemical reaction when exposed to the atmosphere, allowing them to be utilized by plants as nutrients. Without proper management, physical weathering may strip the soils of their fertile layer.

Learn more about Soil

Related Questions

  • Q:

    What factors affect soil permeability?

    A:

    Factors that affect soil permeability include grain size, void ratio, water impurities and the volume of air or organic matter entrapped with the soil. Permeability is approximately proportional to the square of the grain size. Soil quality and permeability may vary greatly from one layer of soil to another.

    Full Answer >
    Filed Under:
  • Q:

    What makes soil fertile?

    A:

    Organic matter and plant nutrients make soil fertile. Healthy soil contains an abundance of organic matter, such as dead plants and animal tissues that decompose and enrich soil as humus. This improves the soil’s texture, as it increases the soil’s aeration and ability to absorb and drain moisture.

    Full Answer >
    Filed Under:
  • Q:

    What is loam soil?

    A:

    Loam soil, according to the Royal Horticultural Society, is a mixture of clay, sand, silt and organic matter. This soil is loose, fertile, easily worked and drains well; it exists in two variations: clay or sandy loam.

    Full Answer >
    Filed Under:
  • Q:

    What types of soil are found in the tundra?

    A:

    Soil types common to the tundra include permafrost and polygon soils. Permafrost refers to soil that is permanently frozen 1 to 2 meters below the surface. Polygon soils are cracked, patterned soils created from surface shrinkage due to frozen winter temperatures.

    Full Answer >
    Filed Under:

Explore