What is the role of a filter strip in stormwater management?

The role of a filter strip in stormwater management is primarily to remove sediments from runoff water. Filter strips are designed as vegetated areas situated between sources of stormwater runoff and receiving water bodies. When stormwater passes through these strips, the vegetation and soil help to slow down the flow of water, allowing sediments and other particulates to settle out. This process of sedimentation effectively reduces the amount of pollutants and sediment entering streams, rivers, or ponds, improving water quality.

In addition to sediment removal, filter strips can also play a role in other aspects of stormwater management, such as nutrient uptake and providing habitat for wildlife. However, the primary function that aligns best with the question is the filtration and removal of sediments from runoff.