Why are soil aggregates important?
Soil aggregates help to build and to sustain soil porosity. A porous soil structure helps in several ways: • It aids in the movement and retention of water, air and nutrients in the soil; • It helps to insulate the soil from sharp changes in temperature and pressure; and • It gives easier passage to the roots and soil organisms. Soil porosity is a function of the spacing between the soil aggregates. See micropores and macropores, B.01.
