No Dig gardening, as advocated by Charles Dowding, is highly beneficial for long-term soil health compared to traditional methods. In traditional gardening, frequent tilling and digging disrupt the soil structure and disturb the delicate balance of microorganisms living within it. This disturbance can lead to erosion, loss of nutrients, and compaction over time. On the other hand, with No Dig gardening, the soil structure remains undisturbed as compost is added on top of the soil surface. This method promotes a healthy ecosystem underground where beneficial organisms thrive and contribute to nutrient cycling and overall soil fertility. By not disturbing the soil through digging or tilling, No Dig gardening helps maintain a rich biodiversity in the soil which leads to improved long-term soil health.