How can soil erosion be minimized in hilly landscapes?

Minimizing soil erosion in hilly landscapes is crucial for maintaining soil health and stability. Installing terraces or planting cover crops directly addresses the mechanics of erosion control. Terracing involves creating flat platforms on sloped land which significantly reduces the speed of water runoff, allowing it to permeate the soil rather than wash it away. This method not only decreases the erosion caused by rainfall but also enhances water retention and soil productivity.

Cover crops are plants that are grown during the off-season to protect the soil from erosion. They help hold the soil in place with their root systems and improve soil structure, which further reduces erosion during heavy rains. These practices can significantly mitigate the impacts of water runoff and create a more sustainable landscape.

In contrast, the other options do not effectively address the issue of soil erosion in hilly areas. Decorative rocks might serve aesthetic purposes but offer little to no functional protection against erosion. Avoiding any landscaping can lead to unprotected soil, making it more susceptible to erosion from rainfall and wind. Lastly, while synthetic barriers can be used in some situations, they do not provide the long-term solutions offered by terraces and cover crops that foster natural soil health and stability.