What does the USDA categorization of storm events consider?

The USDA categorization of storm events emphasizes the various types of rainfall and their impact on the environment. This approach considers how different rainfall intensities can lead to varying rates of runoff and soil erosion, which are critical in understanding stormwater management and agricultural practices. For instance, a light rain may percolate into the soil, while a heavy downpour could result in significant surface runoff. By categorizing storm events based on rainfall types, the USDA can better assess the potential effects on soil conservation, crop management, and water quality.

The other choices focus on aspects that are either too narrow or do not directly align with the USDA's emphasis on the impact of rainfall types. While duration and peak discharge relate to storm events, they are secondary to understanding the varying impacts of different types of rainfall. Therefore, recognizing the influence of rainfall types is vital for effective stormwater management strategies.