舟山良渚时期盐业遗址 展现4000多年前制盐工艺

Core Viewpoint - Archaeological findings indicate that the ancestors of the Zhoushan Islands mastered salt production techniques as early as the Liangzhu period, with significant salt industry relics discovered, highlighting the historical importance of salt in human life [1][2]. Group 1: Archaeological Discoveries - The salt industry relics from the Zhoushan Islands, including the Yaojiabay and Angengao sites, have been recognized as major archaeological discoveries for 2025 [1]. - Excavations at these sites revealed salt production remains dating back 4,800 to 4,600 years, corresponding to the late Liangzhu culture [1][2]. Group 2: Salt Production Techniques - The ancestors utilized two main salt production methods: boiling and solar evaporation, with the latter eventually replacing the former [1]. - To enhance salt production, they collected high-salinity sea mud from tidal zones, which was then processed to create brine that was saltier than seawater [1]. Group 3: Cultural Significance - The findings from the Yaojiabay and Angengao sites reflect a larger prehistoric salt industry in Zhoushan, characterized by large-scale and clustered production [2]. - This prehistoric salt industry provides new insights into the exchange of marine and terrestrial resources and the evolution of civilization in the lower Yangtze River region [2].