What is one purpose of a buffer zone?

A buffer zone plays a crucial role in environmental protection, especially in agricultural settings. One of its primary purposes is to absorb nutrient runoff and protect water quality. This is vital in preventing excess nutrients, such as nitrogen and phosphorus, from entering water bodies. These nutrients can lead to harmful algal blooms and degrade aquatic ecosystems.

Buffer zones typically consist of vegetation that can intercept and filter out pollutants before they reach waterways. Grass, shrubs, and trees planted in these areas help trap soil, reduce erosion, and utilize nutrients in the runoff. By serving as a natural barrier, buffer zones contribute significantly to maintaining the health of nearby water sources, thus enhancing the overall ecological balance.

The other purposes commonly associated with buffer zones—such as equipment storage or pesticide application effectiveness—do not align with their primary function in environmental management and protection, which underscores the importance of their role in absorbing nutrient runoff.