Why are banyan and Casuarina equisetifolia the trees of life and safety in Pingtan Island?

Banyan and Casuarina equisetifolia are common tree species in Pingtan Island. They are called the tree of life and the tree of safety because they have important ecological and cultural significance in the local area. Details are as follows:

1, banyan is called "the tree of life" because it can provide protection and living space for other plants, form large areas of branches and leaves, absorb harmful gases in the air, purify the air and help improve the environment. On Pingtan Island, many banyan trees have a history of hundreds of years and become landmarks and cultural heritage on the island.

2. Casuarina equisetifolia: Casuarina equisetifolia is a native tree species, so it is called "security tree". Its bark can be made into paper, straw mats and other daily necessities, and it is the main tree species of coastal shelter forest in southern Pingtan. Casuarina equisetifolia has strong resistance to sea breeze erosion, which can protect coastal residents and crops from sea breeze.