What are buffer strips used for in land management?

Buffer strips are an important practice in land management designed specifically to improve water quality and protect sensitive ecosystems. They are typically composed of vegetation, such as grasses or shrubs, that are strategically planted along waterways, fields, or other critical areas. The primary function of these buffer strips is to slow down the movement of water as it runs off agricultural land or urban areas. This reduced water speed allows for better infiltration and filtration processes.

As water slows, sediment and nutrients, such as nitrogen and phosphorus, have a greater chance of being absorbed by the vegetation and roots within the buffer. This helps in filtering out pollutants before they enter waterways, which can alleviate issues such as eutrophication in lakes and rivers. Additionally, buffer strips can help stabilize soil and reduce erosion, further protecting aquatic environments.

The other choices do not accurately reflect the primary purpose of buffer strips. For instance, using them to decorate landscapes does not align with their functional roles in environmental protection. Similarly, buffer strips are not intended to increase water flow or enhance nutrient runoff; in fact, their purpose is quite the opposite. Thus, the choice acknowledging their role in slowing water movement and filtering nutrients captures the essence of why buffer strips are utilized in land management practices.