1. What is Porosity of Soil?

Porosity of Soil is the ratio of the volume of voids to the total volume of the soil. Porosity is a crucial parameter in hydrology as it influences the movement and storage of water within the soil.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \eta \) — Porosity of Soil
• \( V \) — Apparent Velocity of Seepage (m/s)
• \( V_a \) — Bulk Pore Velocity (m/s)

Explanation: This formula calculates the porosity by dividing the apparent velocity of seepage by the bulk pore velocity.

3. Importance of Porosity Calculation

Details: Accurate porosity calculation is essential for understanding water movement through soil, groundwater flow studies, and environmental engineering applications.

4. Using the Calculator

Tips: Enter apparent velocity of seepage and bulk pore velocity in m/s. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the range of typical porosity values?
A: Porosity typically ranges from 0.25 to 0.75, depending on soil type and compaction.

Q2: How does porosity affect water movement?
A: Higher porosity generally allows for greater water storage and movement through the soil.

Q3: What's the difference between porosity and permeability?
A: Porosity measures void space, while permeability measures how easily fluids can flow through the material.

Q4: Can porosity change over time?
A: Yes, porosity can change due to compaction, erosion, or biological activity in the soil.

Q5: How is porosity measured in the field?
A: Field methods include core sampling, geophysical techniques, and infiltration tests.