In fact, during the battle of crossing the Yangtze River in 1949 in the original time and space, after the Northeast Field Army crossed the Yangtze River, tens of thousands of people were recruited and infected with schistosomiasis.When Napoleon's army was in Africa, soldiers also contracted the disease.However, the epidemic infection of these two armies did not change history, but Cao Cao was very unlucky, and his dream of unifying the world was taken away by schistosomiasis.

In the history of the original time and space, in the early days of the founding of the Republic, none of the 13 provinces and cities in the middle and lower reaches of the Yangtze River were spared, and more than 1000 million people were sick. In a certain county in Jiangxi alone, more than 3000 people died of this parasitic disease. superior.More than 20 surrounding villages were destroyed, and more than 1 mu of land was completely barren and uncultivated.Many village men are dead, and the few remaining women are also dying.It is a scene of "thousands of villages leaving arrows, and thousands of households singing with Xiaoshu ghosts".It took the Republic 4 years to basically get rid of this plague with the power of the whole country.

.........................................

To deal with this plague, there must be a strong government and modern medical technology, both of which are indispensable.With Ji Yun, the hang beep carrying the base, in Huaxia on this plane, naturally they don't have to wait so long.Before the People's Liberation Army went south, the sub-bases had already started to operate one by one, and they began to understand the parasites within the jurisdiction of each base.

Afterwards, as the People's Liberation Army went south, a lot of manpower and material resources were also invested in this work. The places under the direct jurisdiction of sub-bases have reached the verge of extinction.

And it's not just schistosomiasis, as long as the disease sub-bases that can be eliminated by humans have been controlled, with this advantage, several plagues and locust plagues have been almost wiped out before they become prevalent.Especially after the upgrade of the base this time, those viruses that were originally difficult to deal with have also been dealt with one by one in front of the science and technology party's technology that is far beyond the world level.

As a result, within the direct jurisdiction of each base, the number of people who lost their lives due to various diseases has been greatly reduced, but some places are still difficult to cover.

Ask for flowers....

Chapter 291: Yellow River Control Project (1)

People living in the 21st century have become quite unfamiliar with some diseases, and many people are quite unfamiliar with the diseases that their grandparents were afraid of.

But this is also a good thing. After all, the more frightening the disease, the less the better. Who would like this kind of thing?

After completing the investigation, Lu Huaiyuan returned to his studio to continue his study and work, but at this time he saw a news in the newspaper "Yellow Control Project" that made him very interested.

At this time, on the Loess Plateau in northern China, the original loess land with thousands of ravines is undergoing major changes at a speed visible to the naked eye.

All kinds of green vegetation gradually appeared on the bare yellow land, which made the whole "three two three" land become a piece of emerald green.

If someone looks at the before and after satellite pictures, they may even think that these are two completely different places.

In May, when the branches and leaves of the official trees are at their most luxuriant, these newly planted trees have also changed the environment on this land. These trees are all artificially planted. The labor reform prisoners were assigned to come here to transform the environment of the Loess Plateau. After three years of hard work, the environment here has changed significantly.

Ji Yun was leading a group of people to observe the planted shelter forest at a place not far from the Yellow River.

"These trees are all new species, right? I don't think I've seen them before?" Ji Yun looked at the trees in front of him that had grown to a height of eight or nine meters in just three years, and asked with some doubts.

"That's right, Mr. Ji, the trees we planted in this area are all newly cultivated species. Compared with the original species, these tree species can not only produce certain economic benefits, but also grow faster. It has a longer lifespan and a more developed root system, which can play a greater role in preventing water and soil erosion..." The deputy director of the forestry department who accompanied him this time began to explain these trees in detail.

Ji Yun also listened very seriously. After all, these tree species that he had never seen before were quite novel to him.

The Yellow River is the source of Chinese civilization and the mother river of China. But while this river has nurtured the Chinese people, it has also brought great troubles and disasters to the Chinese people.

The Yellow River is a very violent river. For a long time, the Yellow River has been like an invader, ravaging almost all the rivers and rivers in the entire North China Plain from the south of the Haihe River to the Huaihe River once or several times.Once the Yellow River bursts and overflows, it will rob these unlucky rivers and forcibly divert them. When the Yellow River overflows, floods carrying a large amount of sediment will pour into the channels of these rivers, silting up the channels. This is how many large rivers are first turned into small rivers, and finally until it disappears.

In the more than 2600 years since the fifth year of Zhou Dingwang, which was recorded in writing, the lower reaches of the Yellow River have experienced a great cycle of swinging from north to south, and from south to north.Among them, there are countless breaches and diversions.Generally speaking, with Mengjin as the apex, in such a large delta that reaches Tianjin in the north and borders the Huaihe River in the south, it is the area where the Yellow River diverts and migrates.

Along with the ravages of the surrounding rivers, the Yellow River has brought countless floods to the people on both sides of the river. Since the Tang Dynasty, there has been a major embankment breach almost every three years, and other small-scale embankment breaches have occurred almost every year. The hanging river situation in the middle and lower reaches is threatening the people on both sides of the river almost all the time. According to the archaeological excavations, there are six or seven layers of Luoyang old city ruins in various periods under the city of Luoyang. Luoyang is growing at the same time as the Yellow River. .

Chapter 291: Yellow River Control Project (1) -->> (page 1/2),

Along with the ravages of the surrounding rivers, the Yellow River has brought countless floods to the people on both sides of the river. Since the Tang Dynasty, there has been a major embankment breach almost every three years, and other small-scale embankment breaches have occurred almost every year. The hanging river situation in the middle and lower reaches is threatening the people on both sides of the river almost all the time. According to the archaeological excavations, there are six or seven layers of Luoyang old city ruins in various periods under the city of Luoyang. Luoyang is growing at the same time as the Yellow River. .

Since the middle of the Qing Dynasty, breaches in the lower reaches of the Yellow River have become more frequent.According to statistics, during the nearly 200 years from the early Qing Dynasty to the Opium War, the Yellow River breached 361 times, with an average of about once every six months.

For a period of time in the original time and space, there was a similar rumor that the reason why the Yellow River often diverted was caused by unreasonable economic activities such as deforestation.But that's not true, at least not quite.Unreasonable economic activities do have some impact, but the most fundamental reason is because of the Loess Plateau itself, and the Yellow River has a very large sediment content since ancient times.Because the entire North China Plain is almost all alluvial from the Yellow River. Of course, the Haihe River, Luanhe River and other water systems also made some contributions, but they are far behind the Yellow River.When the North China Plain was formed, let alone humans, not even monkeys appeared.

In other words, even if the laws of nature are completely followed, even if all human beings are driven out of the Loess Plateau, the problem of the Yellow River's breach and diversion cannot be completely solved. A large number of check dams were built, and farmland was returned to forests and grasslands to completely change the agricultural structure.

Chinese people have been fighting against the Yellow River for thousands of years, but the problem of the Yellow River has not been completely resolved until the 21st century.

Although after several decades of unremitting efforts of several generations, 80% of the Yellow River has become clear during the non-flood season (this is true this year), but the hidden dangers of the Yellow River are still very serious. The problem of hanging rivers in the middle and lower reaches of the Yellow River alone is enough to cause headaches.

After all, if something happens to the riverbed, which is seven or eight meters above the ground, it is very prone to accidents.

Therefore, taking advantage of this major national change and the start of the activity of gathering villages and merging villages, Ji Yun planned to make an unprecedented change, reforming the entire Yellow River Basin from head to toe.

The afforestation activities currently underway in the Loess Plateau area are just part of this huge project. Now, as long as the entire Loess Plateau is on both sides of the Yellow River, places two to three kilometers away from the river are basically No one lives.

All kinds of trees are planted in these places. All these trees are saplings produced in the base. In addition to creating good economic benefits 1.6, the biggest feature of these trees is their strong survival ability, and it can even be said that they are buried in the soil. You don't have to worry about it anymore and you can survive!

Therefore, in just three years, both sides of the Yellow River and large areas on the Loess Plateau have changed drastically. Of course, a lot of investment has been made during this period, which even attracted many people. opposition.However, Ji Yun started the project resolutely.

Compared with the vigorous tree planting activities in the upper reaches of the Yellow River, the work carried out in the middle and lower reaches of the Yellow River is even more massive.

On May 5, on a large construction site in Kaifeng, Henan Province, there were all kinds of heavy machinery everywhere. Under the operation of these machinery, the largest trenches were dug out on the originally flat ground.

In this era, not far from the construction site, an interview is being conducted there.

Ask for flowers....

Chapter 292: Yellow River Control Project (2)

"Hi, everyone! Here is the special program "The Future of the Yellow River". I am CCTV reporter Tantai Mingyue, and I am on the embankment of the Yellow River in Kaifeng..." The big reporter Tantai, full of royal sister temperament, talked eloquently in front of the camera.

In fact, TV is a very new technology for the current Chinese people. For many people who are just struggling from hunger, it is undoubtedly an out-and-out luxury. For some wealthy people, and the northern region that has been developing for several years, this thing is not unaffordable.

However, there are very few channels that TV sets can receive now. Apart from Hwaseong Satellite TV, there are only a few CCTV TV channels. Lots of time to promote and expand.

Therefore, Reporter Tantai was also one of the first batch of TV reporters in China, and she became more and more proficient in being a reporter as time went by.

However, due to the lack of satellites at this stage, Huaxia's current TVs receive signals through signal towers, but due to the low electromagnetic pollution at this stage, the clarity of programs on TV is still guaranteed.

"Audience, on my left is the existing channel of the Yellow River, and on my right is the new channel. As you can see, the new channel is much narrower than the existing channel..." Following Tantai Mingyue's introduction, the camera starts Switch the scene of the river on both sides from left to right.Tantai sister took out a piece of paper and looked at it: "Well, I have a data here. The widest part of the Kaifeng section of the Yellow River is about 10 kilometers, and the narrowest part is about 20 kilometers. The riverbed in Henan is generally about 500 kilometers, the widest can reach 1000 kilometers, and the distribution is extremely irregular. However, due to the artificial construction of our new river, the width of the riverbed is very regular, generally only [-] meters to [-] meters, and the widest one is less than three kilometers..."

"Then why don't we carry out treatment on the original river, but dig a new one? What is the reason for this? We asked Dr. Li Yizhi, a well-known water conservancy expert, deputy minister of my country's Ministry of Water Resources, and chairman of the Yellow River Engineering Committee, to answer for us...'" ..." Tantai Mingyue turned the microphone to Li Yizhi who was beside her. (The original names of historical figures cannot be used.)

Li Yizhi nodded and said: "...The accumulation landform formed by the transportation and accumulation of sediment by the Yellow River is the root cause of the crevasse, so the treatment of the Yellow River is the treatment of sediment. This is divided into two parts. The first part is to reduce the sediment in the middle reaches of the Loess Plateau. Flowing into the Yellow River, this can be solved by building check dams on the Loess Plateau, planting trees, returning farmland to forests and grasslands, etc. The other part is to increase the hydrodynamic force of the lower reaches of the Yellow River so that it can take away the sediment and prevent it from accumulating in the river .I am not in charge of the first part, so I will focus on the second part..."

"...Because the existing river channel is too wide, its flow rate is very slow, and the power of the river water is insufficient. Therefore, we need to tighten the channel and increase the power of the water. Because of the accumulation of sediment for many years, the lower reaches of the Yellow River have already become above-ground rivers. This is a hanging river, which is very dangerous. For example, here in Kaifeng, the bottom of the Kaifeng section of the Yellow River is 7-8 meters higher than the ground level of Kaifeng City, and the highest point is more than 10 meters. Seven cities from the Han and Tang Dynasties to the present. Wei Daliang City is now more than 7 meters below the ground; Tang Bianzhou City is about 10 meters deep from the ground; The city of Kaifeng is about 10 meters deep. For thousands of years, the flood of the Yellow River caused catalpas or diversions, which has always been a threat to the survival and safety of the Chinese nation. The best way to completely solve the problem of the Yellow River hanging thousands of miles is to find ways to And scientifically and cleverly make this hanging river no longer suspended. Therefore, if the existing river channel is transformed to make the suspended river no longer suspended, it will cost too much, and the construction will be more difficult and costly. This is very uneconomical, so the best way is to choose to dig a new river." Li Yizhi talked to the camera.

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