How long does it usually take Phoebe bournei to grow into wood?

Nanmu ranks first among the four famous trees in China, namely Nanmu, Catalpa bungeana and Cinnamomum camphora, and is known as the "national wood" in China. Nanmu has a clear fragrance. It is a tall tree with a height of more than ten feet, and its DBH is 1 meter. It is a neutral negative tree species with deep roots, long life and slow growth. Nanmu is warm and moist, does not become warped or crack, has moderate hardness and excellent toughness, and is worthy of great use. In ancient times, state machines and magnificent buildings were made of nanmu, which was a veritable "pillar of the country".

Nanmu is hard and corrosion-resistant. Since ancient times, there has been a saying that "water can't be soaked and ants can't drill". Phoebe bournei is mainly distributed in humid valleys, gullies and rivers in subtropical areas such as Sichuan, Guizhou, Hubei and Hunan, where the altitude ranges from 1 1,000m to 1 1,500m. The golden stage takes 60 to 90 years to thrive and hundreds of years to become a pillar. Many pagodas and temples in ancient times were built of nanmu, which lasted for hundreds of years. People thought it was blessed by the gods, but later they knew it was because nanmu was corrosion-resistant and moth-proof. Xie Zaihang mentioned in Five Miscellaneous Stories at the end of the Ming Dynasty: "Nanmu was born in Chu and Shu, and its age is unknown in the remote mountains and valleys, so it was cut into coffins and called sand boards. There is a texture in the good board solution, which is as hard as stone. Those who taste it use the moon as a box and hold raw meat several times, and the color remains the same. "

The furniture in Jin Sinan (south of Xiaoye Town) is yellow with green. At first glance, it is ordinary and simple, and it is not conspicuous at all. Only in the spotlight can the gold thread shine brilliantly. Although it is cork, your touch is like baby's skin, moist and delicate as jade. All the houses with Jin Sinan furniture can smell a ray of beautiful Nanxiang.

It is rare in that:

1. Wood is hard, corrosion-resistant, long-lived and widely used.

2. The range of origin is small, mainly distributed in humid valleys, gullies and rivers in subtropical areas with an altitude of 1000 ~ 1500m, such as guanxian, Ya 'an, Leshan and Yibin in Sichuan.

3. Phoebe bournei belongs to Lauraceae. Authentic nanmu in Sichuan, which grows slowly, has become a pillar for hundreds of years. ? In order to reduce costs and pursue economic benefits, most merchants use nanmu, Ye Nan, nanmu, osmanthus and other materials, which are different from Sichuan nanmu.

4. Phoebe microphylla is elegant and symmetrical in color, small in expansion deformation, stable in wood, mild in wood, easy to process and resistant to corrosion, and it is the best kind of cork.