Which two factors are calculated to evaluate a sediment and erosion control plan?

To evaluate a sediment and erosion control plan, the C-Factor and P-Factor are essential components. The C-Factor, also known as the cover management factor, describes the effect of land cover and vegetation on the rate of soil erosion. Essentially, it quantifies how different types of surface cover (like grass, crops, or urban environments) influence erosion susceptibility. The P-Factor, or support practice factor, assesses the impact of various conservation practices (such as contour farming or strip cropping) in reducing soil erosion when rainfall occurs.

Together, these two factors provide a comprehensive understanding of how land use and management practices relate to erosion and sediment transport. This nuanced evaluation is critical in developing effective sediment and erosion control plans, thereby facilitating improved water quality and reducing sedimentation in waterways.

The other factors mentioned in the question, like the K-Factor, refers to the soil erodibility factor, which relates to the inherent characteristics of the soil itself, while the L-Factor (length of slope) and S-Factor (steepness of slope) focus on physical factors of terrain that influence erosion. However, they are not typically combined with C and P factors for evaluating control plans in the same context as the selected answer. Thus, the