What soils are most porous? What property makes them so porous?
Sand, Loam, Silt loam, and clay, and particles in the soil
These soils are the most porous, by volume:
Sand: 42% Loam: 55% Silt loam: 56% Clay: 60%
The property that makes them so porous is underlying particles in the soil that cause gaps (pores)
The pores sometimes hold air and even water!