The environmental problems caused by lettuce are extremely damaging. After investigation and calculation, 1.5-2.5 taels of lettuce are produced, which requires 10 acres of grassland. The income from 1.5-2.5 taels of lettuce is

40-50 yuan, that is, "40-50 yuan of income from Nostoc has destroyed 10 acres of grassland, causing the grassland to be ineffective for 10 years."

In addition to the economic losses caused by the influx of people into the grassland, food, housing, burning, etc., the country's environmental and economic losses caused by nostoc are nearly 10 billion yuan every year, while the income of nostoc is only tens of millions of yuan.

The price is too high and the gain outweighs the loss.

From the early 1980s to the present, the problem of indiscriminate digging of licorice and ephedra in the northern grassland areas of our country has become more and more serious, causing great harm to the ecological environment and social stability: the grassland vegetation has been extensively damaged, and the original very

The fragile ecological environment has further deteriorated, accelerating grassland desertification and the extinction of some rare species.

According to relevant surveys conducted by the State Environmental Protection Administration, a large number of farmers from Ningxia and other places flock to the Inner Mongolia grassland every year, covering an area of ??220 million acres, of which 190 million acres of grassland have been severely damaged, accounting for approximately 10% of Inner Mongolia's grassland area.

18% of the grassland area is utilized, and 60 million acres of grassland have been completely destroyed and have basically become desertified.

In the Ningxia Hui Autonomous Region, more than 8 million acres of grassland have been destroyed due to indiscriminate digging of licorice.

Due to the indiscriminate excavation of licorice and ephedra, grassland wind disasters and droughts have intensified, and sandstorms have intensified, which has had a serious negative impact on the environmental security of the middle and upper reaches of the Yellow River and even the country.

Prohibiting the collection and sale of Nostoc. The State Council issued a document on June 14, 2000 (Guofa [2000] No. 13) "Notice of the State Council on Prohibiting the Collection and Sale of Nostoc and Stopping Indiscriminate Digging of Licorice and Ephedra". It advocates: Eat less and eat more.

Taste and benefit the environment.

In China, Nostoc is widely distributed in various northern provinces, with the main producing areas including Gansu, Inner Mongolia, Qinghai, Ningxia, and Hebei.

Nostoc is very resistant to high temperature, cold and drought, and grows in arid and barren land at an altitude of 1,000 to 2,800 meters.

It can dehydrate and hibernate when the environment is not adapted to it. In the morning, it can use the colloid it contains to absorb dew and expand, and absorb carbon dioxide through photosynthesis to grow. However, it grows slowly. In the wild, it can only grow by 6% a year.

Nostoc has the ability to fix nitrogen and provide natural nitrogen fertilizer to the soil.

Since the areas where Nostoc is grown are usually quite poor, some farmers make a living by digging Nostoc and selling it.

However, due to excessive mining of Nostoc over the years, its wild resources have been severely damaged, leading to the degradation of large areas of grassland and desertification.

The distribution range of Nostoc has also been greatly reduced with land development.

Since the mining of Nostoc has caused serious damage to the ecology, the State Council of the People's Republic of China issued the "Notice of the State Council on Prohibiting the Collection and Sale of Nostoc and Stopping the Indiscriminate Digging of Licorice and Ephedra" in 2000, which included "

The protection level of Nostoc in China's National List of Key Protected Wild Plants has been adjusted from Level 2 to Level 1, and the collection, acquisition, processing, sale and export of Nostoc are strictly prohibited.

The emergence of birds and the creation of the environment, after years of metabolism, wind, rain, and sun activate the protein in the guano protein calcium. At the same time: the protein calcium and protein are metabolizing and constantly interacting with the surrounding environment.

And energy exchange allows protein calcium to grow actively in large quantities and develop into multiple mature individuals. It can eject single cells.

Single cells in the algae separate to form new colonies and develop into algae; thick-walled spores reproduce and separate to produce new algae.

Introduction to Nostoc (dry) knowledge: Nostoc is the algae of Nostoc, a plant in the Phylum Phytaphyta.

Nostoc is stuck on the bottom of desert plants. It is named "Nostoc" because of its shape like wild hair and black color. It is also called "ground hair".

It is a very precious food and is known as the "Treasure of the Gobi".

Because Nostoc is a type of algae, the algae are slender, black-green, and hair-like. They are composed of many single-cell individuals connected in long strings and buried in a gelatinous substance.

Mainly distributed in streams in Ningxia, Shaanxi, Gansu, Qinghai and other places in my country.

What you see on the market are its dried products.

Nutritional analysis of Nostoc (dry): 1. Nostoc is rich in protein, calcium, iron, etc., which are higher than pigs, beef, mutton and eggs.

2. It contains richer protein than chicken and pork. It also contains nutrients such as sugar, calcium, iron, iodine, algin, and phycoerythrin. It has very little fat content, so it is called a "lean food".

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3. Nostoc has the effects of clearing heat and eliminating stagnation, softening hardness and resolving phlegm, eliminating intestines and stopping dysentery.

4. Nostoc also has the effect of regulating nerves, and can be used as an ideal food to assist in dietary therapy for diseases such as hypertension, coronary heart disease, hyperlipidemia, arteriosclerosis, and chronic bronchitis.

Suitable people for Nostoc (dried): Most people can eat it.

1. Suitable for patients with lung heat cough, internal heat phlegm, including elderly patients with chronic bronchitis, pneumonia, bronchiectasis, lung carbuncle and cough with yellow leaves and purulent sputum, fishy sputum, hypertension, obesity and rickets.

2. It is also very suitable for women with irregular menstruation, malnutrition, post-operative patients and trauma patients in the healing stage.

Therapeutic effects of Nostoc (dry): Nostoc is sweet, cold and non-toxic.

Enters the liver, kidney, and bladder meridians.

It has the effects of clearing heat and eliminating stagnation, softening hardness and resolving phlegm, regulating intestines and removing scales, detoxifying and nourishing, laxative and urinating, resolving dampness and greasiness, dispersing stagnation and lowering blood pressure.