Home > Environmental Science > Soil and Soil Dynamics

Why is volcanic soil (andisol) fertile?

Answer 1

Andisols are not highly weathered but rich in trace elements

Since sulfur, iron, copper, zinc, and other elements are abundant in volcanic eruptions, andisols are rich sources of these elements and have low bulk densities in the upper zone. Trace elements are essential to plant growth because without them, soil cannot support higher yields from plants.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Jose Arroyo

Volcanic soil, also known as andisol, is fertile due to its high nutrient content, particularly in minerals like phosphorus, potassium, calcium, and magnesium. These minerals are released during volcanic eruptions and weathering of volcanic rocks, providing essential nutrients for plant growth. Additionally, volcanic soil has a porous structure that allows for good water retention and aeration, promoting root development and overall plant health.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.