Nowadays, the construction of Paulownia plantations is a key requirement for our country to provide future construction materials and timber products. Paulownia grows up to 1-1.5 m in two months, 3-4 meters in six months, 5-6 meters in a year, 14-15 meters in three years. After 7-8 years by cutting trees, our population would be provided with high quality timber products.