Lu Yao once said in "Ordinary World"."The water of the Yellow River will always be clear one day".。Nowadays, some tourists have photographed a different landscape of "clear stream waterfall" at Hukou Waterfall of the Yellow River in Yan'an, which has attracted widespread attention, and many netizens have lamented that "the water of the Yellow River has become clear"."Now it's time to jump into the Yellow River and wash it away."
The Yellow River, with a total length of about 5,464 kilometers, is the second longest river in China. This big river flows down from Bayan Kala Mountain on the Qinghai-Tibet Plateau, traverses nine provinces and regions, breaks through thousands of mountains and ravines all the way, and rushes to the sea after coming to the Loess Plateau in the shape of "several"."Yellow River".Hence the name.
In fact, the Yellow River is still a young river. It took 100,000 years and 10,000 years for the Yellow River to form an ocean system, and compared to the Yangtze River, which was born and formed 3 million years ago, the Yellow River is indeed too young. The Paleolithic Hetao people, Lantian people, and the Banpo residents of the new period also lived in that geological era, and perhaps they were the earliest witnesses of the "river". The later Yellow Emperor tribe was also born in the Yellow River domain. Later, the Yellow River gave birth to Yangshao culture, Dawenkou culture, Central Plains Longshan culture, Majiayao culture and so on.
The Yellow River is also into the song into the poem into the lyrics,Especially in the Tang Dynasty of poetry, it is the peak of "Yellow River Poetry". From the monarchs and princes to the common people of Li, they all like to write about the Yellow River, and the "All Tang Poems" contains a total of 229 poems describing the Yellow River. Such as".The desert is lonely, and the sun sets on the long river", "The Yellow River is far above the white clouds, a lonely city and ten thousand mountains", "The Yellow River is nine heavens, and people and ghosts look at the heavy pass".And so on, it is the feelings and magnificent expression of the Yellow River to the fullest!
So,When did the Yellow River turn yellow?Started to turn yellow from ** again?
In people's minds, the water of the Yellow River has always been yellow and turbid. But this was not the case with the early Yellow River. According to records, the water of the Yellow River in the Western Zhou Dynasty was still very clear, and there were clouds in the poem "Wei Feng and Tan Tan", "Kan Kan Hua Tan Xi, and put the river dry." The river is clear and rippling. For thousands of years, Qinghai, Gansu, Ningxia and other places along the upper reaches of the Yellow River have been popular with a proverb about the division of the Yellow River's turbidity: "The Yellow River in the world is clear and clear"!Even today, the upper reaches of the Yellow River are as green as a "green ribbon", writing the legendary story of the Yellow River.
According to research,The yellow of the Yellow River may have begun in the late Spring and Autumn period. Written in the late Spring and Autumn Period, there is a sigh of "the river is clear, and the life is geometric", which may also start from the Loess Plateau, where ** is located. After the Qin and Han dynasties, the Hetao Plain was incorporated into the territory, and the section of the Yellow River between the Longdong Plateau and the Longxi Plateau began to become turbid. Later, there were records of "Turbid River" and "Yellow River", such as Bangu's "Hanshu Geographical Chronicle". After the Tang and Song dynasties, the Yellow River (especially the middle and lower reaches) became a real "yellow" river, and the Yellow River became "green" and "yellow". But for thousands of years, the Jiuqu Yellow River has been flowing, sometimes meandering, sometimes roaring, leaving a magnificent scenery along the way. Such as"."A pot of thousands of miles of the Yellow River is harvested".Hukou Waterfall, Shilou County"The first bay of the Yellow River in the world".The Sanmenxia water conservancy hub of "the first dam of the Yellow River".
Jiuqu Yellow River Wanlisha. The yellow of the Yellow River is actually "sediment". According to the analysis of modern measured data, the average annual sediment transport into the main stream of the Yellow River is 1.6 billion tons, the sediment content is 35 kilograms and cubic meters, and the maximum annual sediment transport is 3.9 billion tons. The Yellow River has a large amount of sand and a large amount of sediment, which can be said to be the crown of the world's major rivers. In particular, the middle reaches of the Yellow River flow through the Loess Plateau, that is, from the estuary of the Inner Mongolia Autonomous Region to the old Mengjin in Henan Province, with a maximum annual sediment discharge of 39100 million tonnes (1933) and a maximum sediment content of 920 kg cubic meters (1977). It is estimated that the Yellow River produces 1.6 billion tons of sediment every year, of which 1.2 billion tons flow into the sea, and the Yellow River has been injected into the sea from northern Jiangsu for more than 7800 years, so this sea area is named the Yellow River. Nowadays, the destination of "rushing to the sea" in the poem "The water of the Yellow River comes from the sky, rushes to the sea and never returns" is the Yellow River Delta, the estuary of the Yellow River in Dongying City, Shandong Province.
The Yellow River is also an unruly river of troubles, in history there have been "two rupture in three years, one diversion in a hundred years", and there have also been "Kaifeng City, City Stacked City". Harnessing the Yellow River and realizing the goal of "Anlan of the Yellow River and clear of the Haiyan River" has always been the millennium dream of the Chinese nationHowever, for a long time, constrained by the subjective and objective conditions at that time, the situation of repeated governance of the Yellow River has never been fundamentally improved, and the good wish of "Anlan of the Yellow River" has been difficult to realize.
It is difficult to see the Yellow River clear for thousands of years. Now the water of the Yellow River has rarely become clear!What is the reason for this?Freezing three feet is not a day's cold. In fact, since the 50s of the 20th century, the state has carried out vigorous actions to control the Yellow River, such as the construction of terraces and silt dam projects, the adoption of measures to return farmland to forest (grassland) and ban harvests, the construction of Sanmenxia, Liujiaxia, Longyang Gorge, Xiaolangdi Reservoir and other water conservancy hubs, etc., the Loess Plateau ecological governance has achieved remarkable results, and has undergone a historic transformation of "overall improvement and local good development".Now it is not a rare sight in a thousand years, but as the amount of sediment in the Yellow River decreases year by year, the water of the Yellow River will become clearer and clearer year by year!