soil depth

Soil depth refers to how thick or deep the soil layer is from the surface down to where solid ground or rock begins. It varies across different areas, affecting plant growth because deeper soil can hold more nutrients and water, supporting stronger roots and healthier plants. Shallow soil might limit what plants can grow comfortably, while deeper soil provides a broader environment for roots to spread and access essential resources. Knowing soil depth helps in agriculture, landscaping, and construction, as it influences plant selection, drainage, and foundation stability.