Why has the water hyacinth, which once flooded in our country, disappeared now?

Because China has invested a lot of manpower and material resources in order to control water hyacinth, and the methods used are relatively scientific, it has disappeared now.

Because experts found that water hyacinth would pollute the waters, grow particularly fast, and cause damage to the ecosystem, they began to fish water hyacinth in the water and encouraged farmers to catch it to feed the ducks, so now it is relatively rare.

Because there were so many of them at the beginning, people have begun to resist these things now, so they will disappear.

The number of water hyacinth in China has been greatly reduced because the water quality in many places in China has been purified, coupled with manual salvage, the machine is broken, and the growth of water hyacinth is curbed. Water hyacinth is still considered an invasive species and is being controlled by the state.

1. Invasive species.

In 2003, the State Environmental Protection Agency announced the first batch of invasive alien species list, water hyacinth ranked in the top 4, because it has no natural enemies in our country, which leads to the wild spread of water hyacinth in various ponds in China, the ability to survive is extremely strong, the ability to reproduce is extremely strong, the pond is basically full of dense water hyacinth, looking at it makes people's scalp numb. Water hyacinth causes the creatures below the water to lose sunlight, and the water hyacinth itself can continue to grow like crazy with these dead underwater creatures as nutrients. Therefore, if a pond spreads water hyacinth, it is a fatal blow to the entire pond ecosystem.

Second, the benefits of water hyacinth.

Water hyacinth is a plant that actually has a lot of benefits in itself. For example, the appearance of water hyacinth is very high, it can be used as an ornamental plant for people to come, livestock chickens, ducks, pigs and cattle like to eat this plant, plus it itself is rich in nutrients, if it is broken and then added to some other materials, it can be mixed into a good animal feed and provided to animals for consumption. Water hyacinth can also absorb heavy metals in water, which means that it has the effect of purifying water quality.

3. Water hyacinth prevention and control of scattered land.

In the beginning, people used manual salvage and machine crushing to control water hyacinth, but in the later period, even animal husbandry could not consume too much water hyacinth. Later, it was discovered that water hyacinth has requirements for the growing environment, and this plant needs nutrient-rich water, which means that only polluted water and the right temperature can make water hyacinth thrive. Conversely, if the water in the pond is clean enough, the growth rate of water hyacinth will become slower.

The waters in many places in China have been effectively controlled, the water quality has been purified, and the living environment of water hyacinth is not so good, and the growth rate has slowed down.

Because this plant belongs to the floating herbaceous plant. It is also a relatively precious variety, so it is not common now.

Because it is now difficult to strengthen the management of this area, and the water quality has been well evolved, so naturally there is no way to survive well, people now attach great importance to the protection of the environment, and pay great attention to water quality. Sun Xiannian.

Because water hyacinth is a relatively rare aquatic plant. It used to be flooded for a while, and then it was rarely seen.

Why are the water hyacinths that are flooding in our country disappear now? The Chinese wiped it out with one move. In the 80s of the last century, many lakes and ponds were covered with greenery, and in season it will bloom purple-red flowers, which is quite beautiful at first glance, and this plant is water hyacinth.

Water hyacinth is also called water hyacinth, water lotus, water hyacinth, native to Brazil, because of the delicate and beautiful flowers, it will be introduced to our country as an ornamental plant in 1901. In the early years, water hyacinth can be said to have occupied most of the river basins in China, and he can basically be seen in both rural and urban areas. But I don't know if you have noticed that the water hyacinth that was once everywhere is rarely seen anymore, has the water hyacinth disappeared?

Clause. First, in fact, water hyacinth is only rare, not completely removed from China's waters, and water hyacinth can still be seen in some local waters, and soon it was promoted as pig feed in southern China. At first, people found that water hyacinth can purify water quality, so they threw one or two of them in a lot of water, but what they didn't expect was that because there were no natural enemies in our country, with their strong adaptability and reproductive ability, it quickly flooded in many southern waters of our country.

It is reported that a single water hyacinth can produce nearly 4,000 individuals in just one month in a suitable environment, so in just a few years, water hyacinth has developed into a flooding trend. Some people may think that the pond is full of water hyacinths and it is beautiful, but you must not be fooled by its ornamental value, because the harm caused by overflowing water hyacinth is far more than that.

Clause. Second, the dense water hyacinth will make the sunlight unable to shine directly underwater, resulting in many aquatic organisms unable to photosynthesize, resulting in the death of underwater plants, and fish are also reduced due to food shortages, bringing serious losses to the local fishery. In addition, if there are too many water hyacinths, it will hinder the flow of water bodies, and over time, the flowing water will also become a pool of stagnant water due to the presence of water hyacinths, affecting the local barricade ecosystem, destroying the local ecological diversity, and even leading to the extinction of some species in the local area, and even the navigation of boats will be hindered.

As a result, the gourd has gone from being a world-renowned ornamental plant to becoming the number one enemy in the fields of agriculture, water conservancy and environmental protection in various countries.

Clause. 3. Experts have found that the flooding of water hyacinth has a great relationship with the local water quality environment, and its reproduction rate will become extremely rapid in polluted water bodies with suitable temperature and rich nutrients. Therefore, if you want to stop the growth of water hyacinth, you must start from the root cause and purify the water first.

In addition, the researchers also found that water hyacinth multiplies the fastest, but cannot climb over physical barriers, and obstacles such as fencing at the edge of water hyacinth can stop it from spreading. Of course, with the acceleration of social progress and environmental destruction, many places are now filled in or dried up, which is one of the reasons why water hyacinth is becoming less and less common.

It may be that the plant has been affected by the movement of other invasive plants, which is why it will disappear. The reason is that the water source environment is becoming more and more noisy, resulting in the plant can not continue to reproduce and survive, so it has led to the disappearance.

The main reason is that China has made genetic changes to water hyacinth in time, resulting in many water hyacinth not being able to reproduce quickly, and China can eat water hyacinth.

Of course, it is because of the emergence of natural enemies of water hyacinth, that is, eagles, that they eat these water hyacinths, so the balance of the ecological zone is maintained.

1. Everyone must know that water hyacinth is a plant, and you can see this plant in any pond you see. It is born inseparable from water and grows in water, but once it is abundant and permeates the water, then other creatures in the water will suffer. Because if the water hyacinth fills the entire pond, it will block the way for outside air to enter the water, which is equivalent to organizing the reproduction and growth of all organisms in the water.

Therefore, in order to control its growth, China also thought of many ways.

2. Now the growth rate of water hyacinth has been greatly controlled, but it cannot be found in many rivers. This can't help but make many netizens wonder where it went, is it because the idea of wanting to take root in the river has not been realized? Actually, no, we don't see a lot of water hyacinth in the river now, in fact, because it has other uses.

3. Although the appearance of this plant was a scourge for us at first, as scientists carefully studied it, they found many benefits for it. Because scientists want water hyacinth to work well on our lives, there is a lack of water hyacinth in the river. There are really many benefits of water hyacinth, and its usefulness has also increased, so let's introduce them to the side!

4. The first one must be easy for everyone to think of, that is, it can be made into feed. The biggest advantage of water hyacinth is that its reproductive ability is very strong, so in order to solve this problem well and avoid its own waste, making feed is the best way. Moreover, water hyacinth is actually a high-protein Qiyu plant, which can not only fill the stomach but also enhance their immunity.

And because there are many water hyacinths, its cost is relatively low, and it is also very economical as feed. Although the process of making feed is somewhat difficult, it does not affect its use.

5. Secondly, water hyacinth can be fertilizer, and the process is simpler. There are still many people in our country who choose to farm for a living, and for them, fertilizer is very important if they want to cultivate good crops. At this time, the potential of water hyacinth has been discovered, it is not only cheap, but also can be directly used as fertilizer after drying, and its nutritional value is not low.

6. There is also the fact that it can be made into fuel, and the large output of water hyacinth is far from enough to rely only on feed and fertilizer consumption. So scientists have come up with a good way to use it as fuel, after drying the water hyacinth, part of it can be used as fertilizer, and part of it can be used as fuel, which is very convenient. In addition to drying, it can also be fermented before being used as fertilizer, but this process can be complicated, so it is not used very often.

7. Now there are also people who use water hyacinth as a raw material for making drinks, because of the nutritional value of water hyacinth and its green safety, many manufacturers are competing to study, maybe one day in the future we will drink water hyacinth flavored soda! Water hyacinth is used so much, no wonder there is a lack of its shadow in the river!

How did the "water hyacinth" that once flooded be solved? Foreigners: Admire the wisdom of the Chinese.

At present, the methods of prevention and control of water hyacinth mainly use chemical control, biological control, manual and mechanical salvage and comprehensive treatment. The chemical control method is simple and the effect is rapid, and herbicides such as gram and glyphosate are commonly used for control. However, herbicides are destructive to the water ecosystem, pollute the environment, and cannot remove water hyacinth seeds, so the effect cannot be sustained.

Biological control method is to use the theory of ecological balance between plants and natural enemies to introduce natural enemies from the origin of water hyacinth, so that they can establish populations and implement long-term control of water hyacinth. Biological control environment is safe, low cost, long-lasting effect, for the attention of domestic and foreign attention, but the disadvantage is that the effect is slow, from the release of natural enemies to obtain significant control effect, generally take 35 years or even longer.

Manual and mechanical prevention methods are to salvage water hyacinth through manual or mechanical treatment, which has a quick effect, but when the area is large, the labor intensity is high. Like chemical control, manual and mechanical control are difficult to remove seeds from water, and the control effect is not sustainable. The comprehensive management method is to adopt the above control measures in a targeted manner, learn from each other's strengths, and control the population of water hyacinth in a low state for a long time.

Experts believe that if you want to effectively stop the crazy growth of water hyacinth, the key is to purify the water quality and eliminate the environment suitable for its growth; At the same time, water hyacinth also has a certain function of water purification and water blocking. Under suitable conditions, one hectare of water hyacinth can absorb the nitrogen and phosphorus emitted by 800 people on the same day.

Water hyacinth can also remove heavy metals such as cadmium, lead, mercury, thallium, silver, cobalt, and strontium from wastewater, thus "turning waste into treasure".

According to the principle of seeking advantages and avoiding disadvantages, experts have studied three channels for the comprehensive utilization of water hyacinth: through fermentation and transformation, the protein content of water hyacinth is increased to make feed; Using the characteristics of water hyacinth containing a large amount of nitrogen, phosphorus and potassium, organic and inorganic compound fertilizers are made; Nutrients are extracted from it to process and refine food, health products, pharmaceuticals and feed additives.

The use of water hyacinth to purify sewage is a simple and easy method with low cost, energy saving and high efficiency. Experts said that in the future, the model of using water hyacinth to treat sewage will be implemented, so that both sewage and water hyacinth will become valuable resources.

Water hyacinth, in recent years, has been regarded as a "poisonous weed", regarded as a pest that pollutes the environment, plaguing the vast majority of southern cities in China. People are torn out about how to eliminate its harm.

Water hyacinth, scientific name "phoenix eye lotus", commonly known as water hyacinth, etc. It is an aquatic floating plant, about 0.3 meters tall, with an upright oval hollow gourd-like stem under dark green leaves, hence its name. Every summer and autumn, the water hyacinth in the river is rampant, but everything has its duality, there are disadvantages and advantages, and water hyacinth is no exception.

According to scientists' research, water hyacinth is an edible plant. Wuhan experts put forward the "eating theory": water hyacinth tastes like cabbage, and it is an authentic "green vegetable".

Stir-fried water hyacinth, soup boiled water hyacinth, the taste is very good, except for its roots, which are harmless. More than 100,000 bottles of drinks made from it were sold out in Wuhan. Water hyacinth can also be processed and refined as a food additive, which can cure colds.

Water hyacinth is rich in amino acids, including 8 kinds of amino acids that are needed for human survival but cannot be produced by themselves. Water hyacinth is such a good thing. Therefore, the name of the water hyacinth should be justified.

The news is credible. In the sixties of the last century, I saw farmers scoop water hyacinths out of the river and chop them up to feed the pigs, who loved to eat them. Later, with the improvement of people's economic conditions, pigs no longer eat this kind of green fodder.

Unexpectedly, the abundant domestic garbage and sewage were discharged into the rivers, and the water was eutrophicated, resulting in the crazy growth of water hyacinth and becoming a "green goblin", which was also unexpected.

Now, the above-mentioned discoveries of scientists provide a feasible way for the "solution" of water hyacinth. Water hyacinth can be a sustainable renewable resource. By making comprehensive use of it, many new products can be developed.

Discerning manufacturers may wish to give it a try. It's a good thing to have the best of both worlds. Foodies may wish to try it too.

If this home-cooked dish can appear on the table of Shanghai citizens in the future, this new dish will also be launched in the restaurant. Then, the 100,000 tons of water hyacinth that spring up in the rivers of Shanghai every year may not be too much, but not enough!