What is the primary function of biofiltration in landscaping?

The primary function of biofiltration in landscaping is the use of natural processes to filter pollutants from water. This process typically involves the incorporation of plants, soil, and microorganisms that work together to break down and remove contaminants from stormwater or runoff before it enters broader water bodies. By utilizing biological and physical mechanisms, biofiltration systems can improve water quality effectively and sustainably, providing benefits such as reducing nutrient loading, sedimentation, and harmful pollutants.

This natural method aligns well with principles of sustainable landscaping, which emphasize ecological balance and resource conservation. While other options may touch on important aspects of landscaping, they do not capture the fundamental purpose of biofiltration, which is centered around environmental protection and water management.