Which nutrient inflow reduction method involves creating a buffer zone near water bodies?

The correct answer involves creating a buffer zone near water bodies, which is achieved through planting deciduous trees. This method is particularly effective in reducing nutrient inflow, as the trees help intercept rainwater, absorb excess nutrients, and stabilize the soil, which can minimize runoff that carries pollutants into aquatic systems. The canopy of the trees also reduces the impact of rainfall on the ground, further contributing to water filtration and reducing erosion.

In addition to these benefits, the root systems of deciduous trees play a critical role in maintaining soil structure and health, which also aids in managing nutrient levels entering water bodies. This natural approach fosters a healthier ecosystem and enhances water quality by creating a transition area between land and water that acts as a protective barrier.

Other methods, while useful in their contexts, do not specifically focus on creating buffer zones. For example, avoiding fertilization can help reduce nutrient input but does not actively involve the establishment of physical barriers or filtration systems. Checking for hidden sources addresses the identification of problems but lacks the implementation aspect of creating a protective zone. Constructing a settling pond is a different strategy that involves engineering water flow and sediment control but does not inherently create a natural buffer zone near the water's edge.