Shallow vegetated depression that captures and infiltrates stormwater corresponds to which term?

Shallow vegetated depression that captures and infiltrates stormwater corresponds to which term?

• A. Rain garden
• B. Cover crop
• C. Riparian buffer
• D. Detention basin

Answer: (A)

Shallow vegetated depressions designed to capture and infiltrate stormwater are rain gardens. They are small, planted depressions that receive runoff from impervious surfaces like roofs or driveways. The soil, mulch, and plants slow the water down, allow it to infiltrate into the ground, and filter out some pollutants before it reaches groundwater or streams. This infiltration-and-filtration function is what makes rain gardens a common green infrastructure solution for managing rainwater at the site level. Compared to other options: a cover crop is grown mainly to protect soil and improve fertility rather than to capture and infiltrate runoff; a riparian buffer is a vegetated zone alongside a stream that helps filter pollutants from runoff before it enters the water but isn’t a shallow basin designed to infiltrate; a detention basin is an engineered structure that holds water to reduce flood peaks, often with less emphasis on infiltration through vegetation.

Shallow vegetated depressions designed to capture and infiltrate stormwater are rain gardens. They are small, planted depressions that receive runoff from impervious surfaces like roofs or driveways. The soil, mulch, and plants slow the water down, allow it to infiltrate into the ground, and filter out some pollutants before it reaches groundwater or streams. This infiltration-and-filtration function is what makes rain gardens a common green infrastructure solution for managing rainwater at the site level.

Compared to other options: a cover crop is grown mainly to protect soil and improve fertility rather than to capture and infiltrate runoff; a riparian buffer is a vegetated zone alongside a stream that helps filter pollutants from runoff before it enters the water but isn’t a shallow basin designed to infiltrate; a detention basin is an engineered structure that holds water to reduce flood peaks, often with less emphasis on infiltration through vegetation.