Why are there many salt pans on the northern coast of our country?

Salt is essential for human consumption and a basic raw material for the chemical industry. China is one of the largest salt-producing countries in the world, and the salt-producing areas are very widely distributed. China is not only rich in sea salt, but also pond salt, well salt and rock salt, only a storage of pond salt in the Qaidam Basin, enough for our people to eat for 10,000 years, it can be seen how rich the reserves of salt are.

The vast majority of the salt produced in our country is sea salt. Nowadays, sea salt is mainly made from sunlight, which requires plenty of sunlight and a wide beach. Most of the coasts along the northern coast of China are low-lying flat and wide silt coasts, which are convenient for drawing seawater for drying.

In addition, in the northern coastal areas, the rainy season is concentrated in the summer months, and in the summer, it is concentrated in several rainstorm days, with few cloudy days and many sunny days, and good light conditions, which is very favorable to salt drying. Therefore, most of the more important salt farms in China are distributed in the northern coast, such as the Tanggu Salt Works in Tianjin in Bohai Bay, the Huaibei Salt Fields in Jiangsu Province, and the salt farms in the coastal areas of Shandong and Liaoning. The southern coast of our country has many rocky shores and many rainy days, which is not conducive to salt drying, but in some places where the coast is relatively flat, salt drying business has also been developed.

For example, the Andong Salt Farm on the south bank of Hangzhou Bay in Zhejiang, the Budai Salt Farm on the west coast of Taiwan Province, and the Yingge Sea Salt Farm on Hainan Island are also relatively famous.

The reason why there are more salt farms in the north and few salt farms in the south:

The northern coastal muddy beach is vast, which is conducive to the development of salt pans;

The north is windy and has little precipitation, which is conducive to salt drying.

Budai Salt Farm: Topography: Widely distributed sandy beaches, gently sloping terrain;

Climate: aThe monsoon is strong;

b.The winter half year is dry and rainless, the sunshine is long, the temperature is high, the evaporation is fast, and the salt content of the sea water is high.

c.The leeward wave located in the monsoon has less precipitation, more sunny days, and plenty of sunshine.

Yingge Sea Salt Field:

Topographical conditions: Beaches suitable for salt - flat, open, muddy beaches Climate: aThe latitude is low, the temperature is high in winter, and the evaporation is large;

b.Located on the leeward slope of the mountain, it has less precipitation, more eyes and more sunshineThe latitude is low, the temperature is high, and the evaporation is vigorous.

Supplement: Location conditions of the salt farm.

Climate: high temperatures, low precipitation, windy, strong sunshine: good for evaporation Terrain: Wide area of flat beaches, silty coast.

Salt farms are best located near sea areas (lake areas) with high sea salinity.

Winter Bar In winter, China's coastal areas have little precipitation, which is conducive to salt drying.

The largest salt field in China is the Changlu Salt Field.

Sea salt is a type of edible salt, which is made by introducing seawater into salt pans and then drying it, evaporating it, and crystallizing it. It is characterized by the fact that no anti-caking agent is added. The collection of sea salt is more complex than other salts, which can retain more trace amounts of Yuanheshanin in seawater, instantly stimulate and retain the original flavor of the ingredients, fresh and salty.

It is mainly divided into coarse salt, fine salt and flake salt, which is refined by evaporating seawater. The production process of sea salt is complex, the production cycle is long, the production cost is high, and the taste and quality are good.

Due to the different origins, the quality of sea salt is also very different, the Hangu salt field is located in the east longitude of 117 °-118 °, north latitude between 39 °, the site of sediment cloth bottom, sufficient sunlight, rain and seasonal climate obvious, is the first production area of sea salt, suitable for drying high-quality sea salt.

China's sea salt production, generally using the sun drying method, also known as the "beach drying method", is the use of coastal mudflats, dam to open up salt pans, through the tide to raise water, attract seawater irrigation ponds, through the evaporation of sunlight into brine. When the brine concentration evaporates to 25 Baumé degrees, sodium chloride is precipitated, which is the raw salt. The process of producing raw salt by sun-drying method is generally divided into four major processes: moisture absorption, halogen making, crystallization, and salt collection.

It is to use tidal movement to push the high salinity seawater from the open sea to the offshore seawater to extract the raw materials for salt production. There are two ways to adopt the tide, one is the natural tide, and the other is the power tide. Natural tidal acceptance is to allow seawater to flow naturally along the tidal channel at high tide; The power of the tide generally uses axial flow pumps to divert seawater into the market, which is characterized by not being limited by natural conditions.

The largest salt field in China is the Changlu Salt Field, which is located in the Bohai Sea.

Located in Tianjin Binhai New Area, Changlu Salt Farm is the largest salt farm in the People's Republic of China in terms of sea salt production, accounting for a quarter of China's total sea salt production. Among them, the Gugu Salt Farm is the largest, with an annual output of 1.19 million tons of salt.

Changlu Salt Farm mainly produces edible salt and industrial salt. Among them, Cangzhou, Hebei Province is the largest industrial salt producing area in the country, and the daily output of industrial salt is the most important salt farm in China's industry compared to the total annual output of Taiwan's Budai Salt Farm. Because there is no technology to produce medical salt, especially the third and fourth generations of medical salt, it is the largest in the mainland and the second in the country in terms of salt farm.

The Changlu salt site is located on the west shore of Bohai Bay, which has superior natural conditions for drying salt

1) There are long, wide, flat muddy beaches.

2) Weather conducive to seawater evaporation, which is the rainy season and the spring temperature rises quickly, and the evaporation is vigorous.

The salt produced in the Changlu salt place is large in quantity, and the particles of the return chain are uniform, the color is white, and it is well-known at home and abroad.

The largest salt field in China is the Changlu Salt Field, which is located in the Bohai Sea.

Located in Tianjin Binhai New Area, Changlu Salt Farm is the largest salt farm in the People's Republic of China in terms of sea salt production, accounting for a quarter of China's total sea salt production. Among them, Tanggu Salt Farm is the largest, with an annual output of 1.19 million tons of salt.

Changlu Salt Farm mainly produces edible salt and industrial salt. Among them, Cangzhou, Hebei Province is the largest industrial salt producing area in the country, and the daily output of industrial salt is the most important salt farm in China compared to the total annual output of Taiwan's Budai Salt Farm. Because there is no technology to produce medical salt for the time being, it is the third and fourth generation of medical salt, so it is the largest in the mainland and the second in the country in terms of the status of salt farms in the country.

The Changlu salt site is located on the west shore of Bohai Bay, which has superior natural conditions for drying salt

1) There are long, wide, flat muddy beaches.

2) Weather conducive to the evaporation of seawater, which is the short rainy season and the temperature rises quickly in spring, and the evaporation is vigorous.

The salt produced in the Changlu salt place is large in quantity, ***, the particles are uniform, the color is white, and it is well-known at home and abroad.

Liaodong Bay Salt Stove Calendar Field, Changlu Salt Field, Shandong Salt Field, Northern Jiangsu Salt Field, Budai Salt Field, and Yingna Debate Youge Sea Salt Field (correct answer).

Shandong Salt Farm, Northern Jiangsu Salt Farm, Budai Salt Farm, Yinggehai Salt Farm, Liaodong Bay Salt Farm and Changlu Salt Farm.

Budai Salt Field, Donghuai Yinggehai Salt Field, Liaodong Bay Salt Field, Shandong Salt Field, Northern Jiangsu Salt Field and Changlu Salt Field.

Yinggehai Salt Farm, Budai Salt Farm, Shandong Salt Farm, Liaodong Bay Salt Farm, Northern Jiangsu Salt Farm and Changlu Salt Farm.

Answer analysis: China's famous sea salt production fields from north to south are: Liaodong Bay Salt Farm, Changlu Salt Farm, Shandong Salt Farm, Northern Jiangsu Salt Farm, Budai Salt Farm and Yingge Sea Salt Farm.

Changlu Salt Field. Nowadays, in the development of China's salt farm, its salt farm reputation should be very large, this is because its salt farm is the most salt in China in terms of the total amount of salt, and it is also the salt field with the most abundant sea salt production in China, so it has always been a very arduous task, after all, it is related to the daily life of many people, and it is the strongest salt field in China, many people should have heard of it, but the degree of understanding of this salt field is not particularly deep, so that many people in our country have heard of it, But I didn't know it was in **.

This salt farm is located near the Bohai Coast, its history of salt mining is also very long, it is one of the four major salt farms in China, because its output can even account for 1 4 of the country's sea salt production, so in its development so far, its role is the strongest salt field in our country, and it is also a salt farm that cannot be ignored in China's salt farm culture, and the salt that most people eat may be produced here.

The reason why its salt field is high salt production is closely related to the local topography and climate, which is due to the local muddy beach terrain, and then there is the short season and the spring temperature rises quickly, and more importantly, it evaporates vigorously, so it actually belongs to the most natural benign salt production land in China, and the quality of the salt produced is also very good, and it is also very popular in China.