1. First, Chinese fir.
Chinese fir is widely used in guzheng nowadays, so it is mainly through the comparison with Chinese fir to distinguish whether it is Chinese fir or not.
Cunninghamia lanceolata has a long fiber, if you have some experience in practicing piano.
You can clearly distinguish the difference between Chinese fir and paulownia from the timbre. Paulownia is clear and short, while Chinese fir is quiet and long.
If you don't know much about guqin,
It can be distinguished from the texture, color, fragrance and weight of wood.
It can be seen from the Phoenix Marsh in Longchi that the texture of the board is straight and clear, and the wood is golden yellow or yellowish brown, while the texture of paulownia is mostly triangular, but the unique wood paulownia emitted by old Chinese fir does not.
2. Secondly, is it an old Chinese fir?
The answer to this question is not so standard.
Mainly based on the understanding of the timbre of guqin, the timbre of Hanmuqin is obviously different from that of new Qin. It's a long story.
When judging, we mainly consider the wet and dry texture of wood.
That's about it. When choosing, it should be noted that the wood in color tone may be different from the wood on the panel.