Researchers work on the Huangchaodun Site in Quzhou, Zhejiang province, where remnants of a rice field and settlements were unearthed. [Photo provided to China Daily]

As part of China's fourth national cultural heritage survey, Zhejiang province has identified 2,290 previously undocumented sites, according to a provincial meeting held on Feb 25.

Local authorities have introduced innovative methods to enhance survey efficiency. Jiangbei district in Ningbo implemented a boundary calibration system, ensuring precise mapping and classification of heritage sites. Xiaoshan district in Hangzhou pioneered a restoration initiative for privately owned and immovable cultural relics — an approach now being promoted nationwide.

The survey, involving 1,599 participants across 281 teams, will enter a critical phase in 2025, focusing on data collection, verification, and legal classification of newly identified sites. By June, Zhejiang aims to finalize data auditing, legal recognition of immovable relics, and integration of findings into broader conservation efforts.

According to the meeting, Zhejiang plans to increase registration rates for discoveries, streamline data reporting, and strengthen the application of heritage protection laws to ensure long-term preservation.

China carried out three rounds of national cultural heritage surveys in 1956, 1981, and 2007, respectively.