Which tree characteristic most affects erosion?

Which tree characteristic most affects erosion?

• A. The stickiness of the leaves
• B. The type of root system
• C. The shape against the sky
• D. The height it begins to branch

Answer: (B)

The most important factor for preventing erosion is how well the plant’s roots hold soil in place. Erosion happens when rain and runoff detach and carry soil particles away. A strong, extensive root system binds soil together, increases its cohesion, and slows and infiltrates surface runoff. Deep roots anchor on slopes, while a dense, fibrous network protects the topsoil by reducing its looseness and the tendency for particles to wash away. In short, the way roots anchor and stabilize soil directly affects erosion control, more so than canopy shape, leaf stickiness, or the height at which branching starts.

The most important factor for preventing erosion is how well the plant’s roots hold soil in place. Erosion happens when rain and runoff detach and carry soil particles away. A strong, extensive root system binds soil together, increases its cohesion, and slows and infiltrates surface runoff. Deep roots anchor on slopes, while a dense, fibrous network protects the topsoil by reducing its looseness and the tendency for particles to wash away. In short, the way roots anchor and stabilize soil directly affects erosion control, more so than canopy shape, leaf stickiness, or the height at which branching starts.