The Yellow River is far above the white clouds, a lonely city and ten thousand mountains, Wang Zhilian's Liangzhou words, the perfect interpretation of the beauty of the Yellow River, in the ancient Chinese poems, there are many descriptions of the Yellow River, the Yellow River Basin, is the origin of the Chinese nation, there are many cultures and legends left in history, most of the descriptions about the Yellow River, mostly based on the vastness, of course, some also mention the yellow sediment of the Yellow River, disastrous and sad fate.

From ancient times to the present, every once in a while, the Yellow River will break out of floods, especially after the Ming Dynasty, disasters began to increase, the key reason is that the relationship between meteorology and human activities, the natural conditions on this side of the Loess Plateau have been destroyed, and the ability to conserve soil and water has been lost, so that the Yellow River carries a large amount of sediment, especially in the middle and lower reaches, under the sediment deposit, the Yellow River began to become a hanging river, and the Yellow River floods have become an eternal pain in the north, starting from the Song Dynasty, the interval is getting shorter and shorter, and the outbreak is becoming more and more frequent.

According to later records, from 602 B.C. to 1938, the Yellow River overflowed 1,593 times in 2,540 years, almost once a year on average, and there were 26 large-scale diversions, which were once a century.

Since Yang Yuanzhao arrived in the northwest, he paid special attention to the problem of the Yellow River, and kept reinforcing the embankments, but he could not fundamentally solve the problem of the Yellow River, a large amount of sediment is the biggest problem of the Yellow River, and if we want to solve the problem of the Yellow River once and for all, the simultaneous treatment of water and sediment is the key.

The Yellow River is the second longest river in China, and the area of the basin is also the second, but in terms of water volume. Not even third. In terms of the amount of water in the Yellow River, the Yellow River is far from being comparable to the Yangtze River. In this sense, the use of the waterways of the Yellow River. It is almost impossible to consider that it cannot be turned into a golden waterway like the Yangtze River, and the entire northern part of the Yellow River and the Hetao region are the only option for obtaining water at present, and even in the future, Lake Baikal will be included in the scope, and the canal will be built from Baikal to inject water into the Yellow River, with the help of the natural waterway of the Yellow River. Replenishing the entire downstream would reduce a lot of work, and increase the amount of water in the Yellow River to almost the entire Northwest and North China while ensuring safety.

The biggest problem of the Yellow River is the problem of sediment, medicinal treatment, must put the sediment in the most important place, winter is the bitter water season, part of the Yellow River will freeze. At this time, the waterway is excavated, the sediment is excavated, and the embankment is strengthened. Even a series of tributaries are treated, and barrages are arranged on some important tributaries, and power generation and utilization are secondary. Increase the amount of irrigation water, and comprehensively control yellow and desertification. It's the right choice.

These would use a lot of manpower, but for the Yellow River. In the next three to four years, unless there is a once-in-a-century flood, it will affect the Yellow River, which leaves time for the comprehensive management of the Yellow River.

This is a large-scale project, not only a provincial project, involving many provinces and regions, because of too important relations, Yang Yuanzhao personally led, with previous experience, no blind command, is to let experts do, from planting all kinds of vegetation, to improve the system, and then change the water supply and irrigation in a certain area, as well as a part of the Yellow River bay straightening project, these multi-pronged efforts, may be a few years, will produce results, as long as it is completed, the environment of the northwest and the Yellow River, There will be an unimaginable change.

The Yellow River, the mother river that has made the Chinese nation difficult for countless years, may become controlled in the hands of the northwest, and even, go one step further, make the Yellow River clear, which is the greatest hope.

In the Baotou Yellow River Management Office, in addition to the huge building and a large number of staff, in the hall on the first floor of the building, the high-definition panoramic large sand table almost includes the entire Loess Plateau and the middle and lower reaches of the Yellow River, every province, every region, every county, and even every township, can be found on the sand table, whether it is a soil mountain dozens of meters high, or a stone mountain hundreds of meters high, or even low-lying, towering, you can have an unobstructed view on it.

In the whole plan to control the Yellow River and the Loess Plateau, first of all, the improvement of the banks of the Yellow River and the Loess Plateau, the Loess Plateau in the early 20th century began to take shape gradually, even if the northwest is now the world's largest industrial power, in a certain sense, the industrial power has not completely invaded the Loess Plateau, the Loess Plateau still has its own vegetation system and animal and plant environment, the emergence of the northwest, to a certain extent, has changed, not serious. From the very beginning, environmental problems are the first to be considered, in the early days, there may not be this condition, at the beginning, Yang Yuanzhao's strength is not strong, the first thing is to survive, but later, with the rapid rise of the Northwest, coupled with a variety of advanced machinery and equipment and a new cornucopia, the Northwest really does not have to worry about the problem of funds, and it has smoothly begun to expand.

The construction of urbanization, most of which occupy wasteland and tidal flats, in recent years, there have been selective afforestation, starting from the northwest expansion, similar large-scale, government-organized afforestation projects, which have been carried out for 6 years, although not comprehensive afforestation, but also let the forest greening rate of the Loess Plateau, to the original extent, increased by 3%, although inconspicuous, but it is a successful opening.

And now, it is even more bold forward, with the arrival of prisoners of war and migrant workers, and after the large-scale afforestation and vegetation transformation of the entire northwest, it has entered a peak period. Specialized pasture grass is specially zoned and planted, the grassland on the grassland has been protected and sustained, so that the possibility of further deterioration of the grassland in Mongolia has disappeared, concentrated breeding of meat and fish, enriched protein intake of cattle and sheep, has been in a relatively peaceful environment, no excessive grazing, plus the importance of planting, the ecology on the grassland has been protected.

The Loess Plateau finally has green, the first thing that needs to be solved by the huge manpower is the greening of these weak vegetation mountains, the laboratory headed by Yang Yue, has an in-depth understanding of the characteristics of the loess high slopes, and selects the appropriate shrubs, grasses and trees, first of all, regardless of the problem of economic efficiency, and even to a certain extent, large-scale return of farmland to forest, return farmland to pasture, both of which are two-pronged with large-scale planting. On top of the soil and mountains, first there is grass vegetation, followed by trees with good drought resistance, and then there is overall management, vicissitudes of life, dripping water through stones, as long as this development continues, step by step increases, the whole northwest will change a look, a large number of soil mountains in the northwest, runoff will appear when it rains, and it will never appear again.

In the next, is a variety of water conservancy and irrigation, more than 10 million manpower and more than 200,000 size machinery, for the Yellow River to carry out a comprehensive treatment, the river inside is only an initial stage, the most critical is the bottom of the kettle, in some places specially excavated a large number of sediment settlement artificial lakes, to put it bluntly, is not far from the bank of the Yellow River, digging a large number of lakes, using the canal to introduce water into these sediment sedimentation lakes, the rushing Yellow River water, with speed to take away a large amount of sediment, into the lake, After the speed of the water is significantly reduced, it naturally begins to settle, and then after a period of subsidence, the water of the Yellow River will be re-injected into the Yellow River.

To the extent that the Yellow River water carries sediment, don't look at the volume of 5 cubic kilometers of each lake, after a long time, a large amount of sediment will be piled up, but it is an artificial project, where the Yellow River is connected, there will be a huge dam, as long as the dam is closed, the Yellow River water does not continue to be injected, it is very convenient to dig sediment.

After the completion of the whole project, at the beginning of the turn of the Yellow River, in the entire Yellow River area, 32 lakes of different sizes will be excavated, the largest has a diameter of 40 kilometers, the average water depth is more than 40 meters, each is almost 5 cubic kilometers, 32 together, will exceed the capacity of Qinghai Lake, under the rational use, every once in a while, clean up the sediment in the lake, can play a role in the water and sediment control of the Yellow River.

This is a large-scale project, investment for the time being, the occupied land is a very large number, but also under the existing situation, the least consumption, the easiest way to solve the Yellow River problem, that is, in this era, under the strict control of the northwest, land has not become the most important problem restricting China's development, can be facted, otherwise, a single 40 kilometers diameter lake, covering an area of more than 120 square kilometers, 32, almost 4000 square kilometers, This is simply unacceptable to China, which lacks land in later generations, so it chose to invest in larger and more comprehensive water and desertification control projects, such as the Sanmenxia Water Conservancy Project and the Xiaolangdi Project.

Now, under the present and long-term prospects, the northwest has enough land to accommodate 450 million, or even more people, and take out 4,000 square kilometers of land, to a certain extent, greatly reduce the degree of sediment carried by the Yellow River, and increase the regulation and control performance of water volume, and even improve the water use in some areas.

In short, this is an unprecedented, large-scale project, about 160 cubic kilometers of earthwork, this is not a small number, because 1 cubic kilometer is equal to ten of the ninth cubic meter, calculated, is a very large number, even if there are 200,000 construction machinery, and tens of millions of people, it is not a problem that can be solved in a short time. (To be continued......)