How are the different paulownia plantations related to the growth of Paulownia?

The afforestation land of Paulownia is mainly divided into two types: mountainous area and plain area. Under the general conditions for Paulownia to grow, and the site conditions are different, the growth rate is obviously different. According to the characteristics of Paulownia, the reasonable choice of afforestation land is related to the quality of afforestation and the technical key to whether the fast-growing characteristics of Paulownia can be fully utilized.