The arrangement of stones in a water沟 on a sloping courtyard surface can create an aesthetically pleasing water feature. Landscape design principles often dictate the placement of stones for both practical and decorative purposes. Stones are typically chosen for their size, shape, and texture to complement the surrounding environment and enhance the water flow. This can include using stones to direct water flow, create natural looking waterfalls, or simply as a visual element to add interest to the garden. Proper maintenance, such as regular cleaning and checking for erosion, is essential to preserve the beauty of the water feature.