What are common methods for controlling soil erosion in landscaping?

The correct answer involves methods that are widely recognized and effective for controlling soil erosion in landscaping. Installing silt fences is a common practice used to capture sediment runoff and prevent it from entering water bodies, thus helping to maintain soil integrity. Creating terraces across sloped areas effectively slows down water movement, reduces runoff speed, and facilitates water absorption, which minimizes erosion. Additionally, using ground cover plants can enhance soil structure, reduce surface runoff by absorbing rainfall, and shield the soil from the impact of heavy raindrops, further preventing erosion.

In contrast, the other options lack effectiveness or practicality. Planting only large trees may not provide the immediate coverage needed to control erosion, especially on steep slopes, and can lead to issues with root structure and soil stability. Using artificial barriers and cement might provide a temporary solution; however, these hardscapes often do not promote natural vegetation growth, which is essential for long-term soil stability. Regular watering and avoiding mulching do not address soil erosion effectively; instead, mulching is beneficial as it protects soil, retains moisture, and promotes the growth of vegetation that helps anchor the soil.