The planting distance of American autumn maple is 3m×3m, and one acre of land can be planted with 12 1 tree. If autumn red maple is planted at this spacing, the canopy density per mu can reach 8 -9cm/ plant. Because the planting in that year belongs to the slow seedling stage, the ground diameter growth is not obvious. The thickness of each tree is about 1cm. After the second year, the roots were stable and the seedlings began to grow normally. The growth diameter of each tree is about 1.5-2 cm, so the average growth diameter of each tree after three years is 4-5 cm. If 3-4cm American autumn maple trees are planted now, the diameter of each tree will reach 7-9cm in three years. According to the current market price, American autumn red maple with 3-4cm will be 320-390 yuan/tree, and the price of 7-9 cm will be 3600-6500/ tree, with an increase of about 396880-7393 10 yuan per mu. If the market price drops after three years, the price of 7-9cm is 3,000-6,000 yuan/tree. After three years, the value per mu can be increased by 324,280-67810 yuan.
According to the survey, at present, the dominant varieties in the domestic American red maple market are American autumn red maple (also known as Acer truncatum, autumn flame, etc. ), and the number of trees in the nursery is about 5,000. Most of the domestic enterprises that make American red maple are the seeds of American red maple. American red maple seedlings are unstable in discoloration, or do not change color, and their growth potential is poor. American red maple is cheaper to sow and propagate, but as an investment, it is not recommended to consider because of discoloration and growth speed. It can be considered that the southern autumn flame red maple and October Guanghua belong to the American red maple series, with consistent color change and good growth potential. The adaptability of autumn flame in the south is better than that in the north.
American autumn red maple has performed well in China in recent years, which is obviously better than other green seedlings in China. Now it is gradually accepted by local municipal and real estate units. Therefore, the price of autumn red maple in the United States will not fluctuate too much in the next five years. With the growth and thickening year by year, the price will be higher and higher, and more and more are used for greening and beautifying street trees, community greening, square greening, golf courses, villas, ecological parks and so on.
The above is just my personal opinion.