How do Type D soils rank concerning infiltration rates and runoff potential?

Type D soils are characterized by their low infiltration rates and high runoff potential. This classification indicates that these soils have a limited ability to absorb water due to their typically heavy texture, which often includes clay. Clay particles pack closely together, creating a barrier that hinders the movement of water into the soil. As a result, when it rains, more water runs off the surface rather than being absorbed, leading to increased runoff potential.

Understanding the implications of Type D soils is critical in sedimentation and erosion control efforts. Since these soils are prone to runoff, they may contribute to erosion and sediment transport issues, particularly during significant rainfall events. This highlights the importance of implementing appropriate erosion control measures in areas with Type D soils to manage the runoff effectively and reduce soil degradation.