What is the classification for a water holding capacity value below 4?

The classification for a water holding capacity value below 4 is considered low. This indicates that the soil has a limited ability to retain moisture, which can significantly affect plant growth and ecosystem health. Soils with low water holding capacity typically have larger particles, such as sands, which do not hold water well compared to finer soils like clays that can retain more moisture. Understanding the water holding capacity is crucial for land management, agricultural practices, and environmental conservation, as it influences irrigation needs, crop selection, and habitat sustainability.