Song Cheng, the old city of Ganzhou in the south of the Yangtze River for thousands of years, most of the ancient brick and wood buildings did not disappear in the war, far better than Lijiang in Pingyao. With the popularization of reinforced concrete and urban construction, most of the ancient brick-wood buildings have been demolished, and there are not many existing buildings in ........................................................................................... There are two main reasons: one is that the anti-corrosion technology can't meet the service life requirements, and the other is that it has not been repaired and protected on time. Due to the limited technical ability of ancient Chinese in wood preservation, moth prevention and fire prevention, it is difficult to expose these wood structures to the sun, rain, wind and frost for a long time.

People's concept of ancient architecture protection is vague, and they also advocate bringing forth the old and bringing forth the new in the process of ancient architecture protection, which makes the concept of ancient architecture protection unfamiliar to most people in China, especially young people. There are many concrete examples of ancient buildings being damaged or destroyed. For example, there are many records of fire damage in ancient palaces; For another example, Eight-Nation Alliance went to Beijing and set fire to Yuanmingyuan, which is a household name. Although the ancients had very clever anti-corrosion and moth-proofing methods. It's okay if someone lives or maintains it. Once abandoned, or encounter war, disrepair, leaking rain, some will gradually disappear after collapse.

In the end, columns and beams will be broken and houses will collapse, making it difficult to survive. With the progress of the times, brick-wood structure has become a thing of the past, and steel-cement structure has become inevitable. Antique is just recalling the past glory of this building. In short, keep pace with the times and forge ahead towards a more brilliant tomorrow. Except the Great Wall in Wan Li, there are few historical sites of other brick and wood structures. There are building materials and human factors. In a word, there is no shortage of stone in China, but brick and wood structures are easier to build. Especially during the regime change in China's history, some palaces were burned down and their own palaces were rebuilt. We should not only build our own palaces, but also cemeteries and other palaces.