River pebble砌tree fence diagram

Quick answer：

The 'River pebble砌tree fence diagram' refers to a diagram showing a tree fence constructed using river pebbles. River pebbles are smooth, rounded stones found in rivers, often used in landscaping and construction. Tree fences are a form of living fence where trees are planted closely together to provide privacy and aesthetics. The diagram would likely depict the arrangement of the pebbles and trees, showcasing the design and construction techniques.