The main ecological function of neem is to prevent wind and fix sand. At present, there are many lands in the world that are in danger of desertification, and neem is very drought resistant. Planting neem on the edge of desertification land can effectively fix sand and protect soil, and prevent them from desertification.
In addition to windbreak and sand fixation, it is also a good greening plant, suitable for planting in the dry and hot mountains, playing a role in greening the mountains, helping to solve the problem of forest shortage.
From its seeds, bark and leaves, it can extract a substance called melittin. It is a very effective pest control material, for scale insects, corn borer and more than 100 kinds of pests are effective.