Which material is commonly used for making lightning rods for trees?

Copper or aluminum is commonly used for making lightning rods for trees due to its excellent conductivity, durability, and resistance to corrosion. These materials effectively facilitate the flow of electricity, allowing lightning strikes to be safely directed into the ground rather than damaging the tree or its surroundings.

Copper is particularly favored because of its high electrical conductivity, which ensures that lightning energy is transferred efficiently. Aluminum, while slightly less conductive, is lightweight and resistant to oxidation, making it a practical and cost-effective choice for many applications. Both materials offer the necessary properties to protect trees from lightning strikes, helping to minimize damage and promote safety in outdoor environments.