What are the four saltworks?

There are three big saltworks, not four.

These three saltworks are Luchang saltworks, Bag saltworks and Ying Ge saltworks.

1, Luchang saltworks

Mainly distributed in the Bohai Sea coast of Hebei Province and Tianjin.

Yantian, with the largest sea salt production in China, accounts for a quarter of the total sea salt production in China.

Cangzhou, Hebei Province, in particular, is the largest producer of industrial salt in China, and the daily output of industrial salt is the most important salt field in China compared with the total output of bag salt field in Taiwan Province Province in one year. Because there is no technology to produce medical salt for the time being, especially the third and fourth generation medical salt, which is the largest in the mainland and the second in the country.

2. Bag saltworks

Baoyan saltworks is the largest saltworks in Taiwan Province Province. The salinity of seawater here is as high as 35‰, which is about 7 times higher than that outside the Yangtze River estuary, and it is one of the highest salinity waters in China. The salinity of seawater around the cloth bag is very high, mainly because the beaches are widely distributed, the amount of fresh water injected by rivers is small, the sunshine time is long all year round, the temperature is high and evaporation is fast, which makes the seawater concentration relatively high.

Due to the above advantages, the coastal area near the cloth bag has been the enrichment area of Taiwan Province Island saltworks in China since ancient times, producing more than 600,000 tons of salt every year, and is known as the "Southeast Salt Warehouse". The salt produced is low in cost and white in color, which can be called top grade.

3. Ying Ge saltworks

Ying Ge Sea Salt Field is located in the southwest coast of Ledong, which is the largest sea salt field in Hainan Island and second to none in South China. Ying Ge Haiyan Yard was built in 1958, with a total area of 3,793 hectares, with an annual production capacity of 250,000 tons and a maximum annual output of 300,000 tons. The degree of mechanization is 69%. The main products are crude salt, sun-dried refined salt, sun-dried high-quality salt, powder-washed refined salt and so on.

Distribution position

Luchang Yanchang

Mainly distributed in the Bohai Sea coast of Hebei Province and Tianjin. Tanggu Salt Field is the largest, with an annual output of1190,000 tons. From Huanghua in the south to Shanhaiguan in the north, it includes salt fields such as Tanggu, Hangu, Dagu, Nanpu and Daqing River, with a total length of 370 kilometers, more than 2.3 million mu of salt fields, with an annual output of more than 3 million tons of sea salt, accounting for a quarter of the total national sea salt output.

Reasons for the formation of Luchang Yantian: The distribution of Yantian is influenced by topography and climate. Luchang Salt Field is located on the west bank of Bohai Bay. Because of this superior natural condition of drying salt: there are long, wide and flat mud beaches. Weather conducive to seawater evaporation, this is a short rainy season, and the temperature rises rapidly in spring, and evaporation is vigorous.