Why can the Yangtze River and the Pearl River form a delta, but the Yellow River cannot?

In fact, the Yellow River also formed a delta, but it is not as developed and prosperous as the Yangtze River and the Pearl River Delta.

The Yellow River is different from the Yangtze River and the Pearl River in terms of shipping

The lower reaches of the Yangtze River and the Pearl River are the main waterways in China and shipping, which leads to the delta established around the Yangtze River and the Pearl River has a very obvious transportation advantage, not only that, the shipping is also here to meet, which means that the delta established here, not only has unique geographical conditions, but also can develop abroad, but the Yellow River is located in the north of China, and the annual precipitation in that part of the area is relatively small, so the water flow of the Yellow River is rarely only located in the 16th place in China, In this respect, the economy of the Yellow River Delta is not so developed.

The Yellow River contains too much sediment

It is also because the Yellow River contains a large amount of sediment, so the siltation of the lower reaches of the Yellow River is very serious, unlike the Yangtze River and the Pearl River, which can be used as a waterway, the lower reaches of the Yellow River can be said to be an above-ground river, so the Yellow River has no shipping value that can be used In addition, due to the sediment content of the Yellow River, the accumulation of water in the Yellow River Delta is very serious. At present, the Yellow River Delta is advancing towards the Bowang Strait at a speed of 2 to 3 kilometers per year, and this leads to a large number of new areas in China every year. Because the location of the Red River Delta has been advancing, he has no way to build a seaport, no way to carry out developed exchanges with the outside world, and he has no way to make full use of the transportation convenience brought by the Yellow River, which makes the Yellow River Delta have no future for development.

The Pearl River Delta and the Yangtze River Delta are economically developed

Since we talked about the Yellow River Delta, then we have to hide out, with the rapid development of China's economy in recent years, directly ranked the second largest economy in the world, and in this period of rapid growth there are three places known as China's economic engine, two of which are the Yangtze River and the Pearl River Delta, these two regions have the highest degree of economic development, the Yangtze River Delta is located in the Yangtze River estuary around the provinces and cities, including Shanghai, Jiangsu and Zhejiang. The cities shortlisted for GDP exceeding 1 trillion yuan are Shanghai, Jiangsu, Hangzhou, Nanjing, Wuxi and Ningbo. In addition to these few particularly eye-catching cities, there are many other cities waiting to be included in this ranks.

The Pearl River Delta is located at the mouth of the Pearl River, and the surrounding provinces and cities are Guangdong Province, which is also a very developed region in China, and first-tier cities such as Shenzhen and Guangzhou are in the Pearl River Delta region. The same is followed by many reserve echelon cities.

The Yellow River Delta has been a barren land since ancient times, which is related to natural formation. 1: The Yellow River contains a large amount of sediment to the estuary, forming an impact-shaped plain, and the salinity is serious and unsuitable for human habitation.

2: The area around the estuary is shallow, and it is difficult to build a deep-water wharf. This is the main reason why it is difficult to develop.

Because the queen passed through more plains, the sediment accumulation is also more serious, which is not suitable for the growth of plants, but the Yangtze River and the Pearl River are different, and the geographical conditions are much better.

The Yellow River estuary has a fast flow rate, the Yangtze River and the Pearl River are easy to form a delta because of their slow flow speed and are in the plain area, and the Yellow River estuary has a large drop in the estuary, which is not easy to form a delta plain!

The Yangtze River Delta is mainly caused by the accumulation of flowing water. The delta basement is part of the Yangtze quasi-platform, and the Himalayan tectonic movement interrupts the subsidence. During the Quaternary neotectonic movement, the earth's crust and sea level rose and fell frequently, and after the last sea transgression, the sediment carried by the Yangtze River continued to be deposited, and a delta began to develop in the estuary.

Due to the Coriolis force.

The role of the main river.

Constantly deflecting to the right, the estuary sand group merges into the north bank in turn. The sand bars and sandbar groups formed in the Hongqiao period, Huangqiao Shousen period, Jinsha period, Haimen period and Beisha period formed the counties of Hanjiang, Taixing, Jingjiang, Rugao, Nantong, Haimen and Qidong on the north bank of the Yangtze River today. Now Chongming near the mouth of the river.

Sand islands such as Changxing and Hengsha will also be incorporated into Lawu on the north shore according to this law. The Sha Tsui at the mouth of the river is also extended simultaneously.

The Yangtze River Delta stretches from the Tongyang Canal in the north to Hangzhou Bay in the south.

It is bounded by Nanjing in the west and the seashore in the east, including Shanghai, the southern part of Jiangsu Province, the northern part of Zhejiang Province and the adjacent sea areas. With an area of about 99,600 square kilometers and a population of about 75 million, it is a large plain. The coastline here is straight, the water is yellow, and there is an intertidal shoal about a few thousand meters to tens of kilometers wide.

The Yangtze River enters the estuary to form a delta, why did the Yellow River not form? First, the coastline is unstable. According to statistics, the Yellow River is the world's largest river with the largest sediment content, with 1.6 billion tons of sediment entering the Bohai Sea every year, and the earth's equator can reach a week.

A large amount of sediment flows into the sea, and the coastline rapidly pushes into the sea, which is not conducive to urban construction and coastal transportation. 2. Flood disasters.

The entrance to the sea is not fixed. The Yellow River is the country with the most serious flood disaster in China. In the lower reaches of the Yellow River, the riverbed was piled up with sediment, and the embankments were continuously raised to defend against the bursting of the embankments, forming the world-famous surface river (also known as the Xianjiang River).

Historically, the Yellow River Basin.

There were 26 flood disasters, 13 of which were breaching, and finally the Huaihai Sea was captured.

The Huai River was forced to enter the sea through the Yangtze River. Human beings have always sought advantages and avoided disadvantages, and they cannot settle here, let alone form large cities. Third, in the late era of the formation of the new delta, the foundation was unstable. The People's Republic of China was

Later, in order to solve the Yellow River Basin, a series of water conservancy projects and the Loess Plateau were built.

Soil and water conservation projects have prevented the Yellow River from flooding. However, the modern delta is low-lying and poorly drained, forming vast swampy lands that are not conducive to urban construction and transportation links. Fourth, silty coasts are not conducive to port construction. Yellow River Delta.

The sediment accumulates at a rapid rate and advances appropriately and rapidly towards the sea, which is not conducive to the formation of a peninsula shelter. Moreover, the water is shallow, there is a lot of mud, and there are no conditions for port construction.

Even if there is a city nearby, the transportation is not convenient, the population is small, the industrial activities are not concentrated, and the development is slow. The reason why large rivers enter Haikou to form large cities is that it is easy to form logistics and population centers, with deep-water ports and inland waterway shipping, forming alluvial plains.

or Delta. Due to the fertile land and dense population, the Yellow River Delta does not occupy any of them, the Yellow River itself has little inflow into the sea, and there is almost no inland river transportation on the land with a large sediment content of uneven sediment in all seasons, so the Bohai Sea itself is relatively shallow, and the Hami swing is easy to deposit, and there is no deep-water port. The history is short, Hami is constantly shaking, the land is not fertile, the salt is serious, the population is small, it is difficult to form a large city, and the existing urban population is still concentrated with oil.

It cannot be said that there is no Yellow River Delta, it can only be said that the Yellow River Delta is small and formed late. Broadly speaking, the Yellow River Delta is the largest, stretching from Tianjin in the north, to the abandoned Yellow River estuary in the south, and to the alluvial flooding area of the Yellow River east of Gongyi City, Henan Province in the west. In a narrow sense, it refers to the delta formed by the alluvium of the Yellow River below Binzhou City in Shandong Province after 1855, that is, the Yellow River Delta in geography.

It cannot be said that the Yellow River does not form a delta, but it can only be said that the Yellow River does not form a delta and urban agglomeration like the Yangtze River Delta and the Pearl River Delta. The reason is that the Yellow River is often diverted, the current Yellow River Delta was formed after 1855, and the current Yellow River estuary was formed in May 1976.

Because the Yellow River is often diverted, and because the terrain behind it is relatively flat, the river diversion phenomenon is prone to occur when the upstream water hits.

Because the Yellow River has been diverted many times in history, the location of the estuary is unstable, so the estuary is also often changed, and a stable delta cannot be formed.

That's because the water flows in different directions, and secondly, because of the different locations, so there is such a difference.

The estuary of the Yangtze River forms a delta, and the Yellow River does not form the Yellow River Delta, but it can only be said that the Yellow River Delta is small and formed late. Therefore, it cannot be said that the Yellow River does not form a delta, but it can only be said that the Yellow River does not form a delta and urban agglomeration like the Yangtze River Delta and the Pearl River Delta. Moreover, the Yellow River carries a large amount of sediment, and the power of the sea water is not as great as the Yellow River, so it cannot stop the momentum of the Yellow River, so the river will not be diverted, and it still flows back to the Bohai Sea along the original road.

This is the reason why the Yellow River does not form a delta.

The main reason is that the Yellow River has been diverted throughout history, so it has not formed a delta.

Historically, the Yellow River has undergone many changes of course, and the Yellow River has become the world's largest sediment-laden river through the Loess Plateau, which is not conducive to the formation of the Yellow River Delta.

Because the water potential of the Yellow River is relatively large, the water quality of the Yellow River is relatively turbid, and the terrain of the areas through which the Yellow River passes is uneven, no similar delta has been formed.

Because the water flow of the Yellow River is very fast, and the impact is very strong, it is too late to form such a delta.

Summary. Similarities and differences: The Yellow River Delta is the delta of the Yellow River, while the Pearl River Delta is the delta of the Pearl River; They have different geographical locations and different natural environments, but they are all important economic zones in our country.

Similarities and differences: The Yellow River Delta is the delta of the Yellow River, while the Pearl River Delta is the delta of the Pearl River; They have different geographical locations and natural environments, but they are all important economic zones in our country.

You've done a great job! Can you elaborate on that?

The similarities and differences between the Yellow River Delta and the Pearl River Delta lie in their geographical location, topography, and level of economic development. Located in the Yellow River Delta Plain in eastern China, the Yellow River Delta is dominated by agriculture and has been actively promoting the development of industry and services in recent years. The Pearl River Delta is located in the southeast of China, consisting of three cities: Guangzhou, Shenzhen and Hong Kong, shouldering the burden of China's economic development and playing an important role in the world economy.

In addition, the Pearl River Delta is well connected to other international cities, making it an important state**, shipping and industrial base in the world. The main differences between the two are the geographical location, as well as the focus and direction of development.

The Yangtze River Delta is an important economic development area in the Yangtze River Basin, and the Yangtze River has an important impact on the development of the Yangtze River Delta.

First of all, the Yangtze River provides a good channel for water transportation. The Yangtze River water transport channel has an important impact on promoting the development of the Yangtze River Delta: it has promoted the transportation of various materials and information in the Yangtze River Delta, promoted the exchange between different regions in the delta region, and promoted the economic development of the region; Efficient water transport also helps to alleviate traffic congestion in the delta region, thereby improving the efficiency of transportation in the delta region.

Second, the Yangtze River provides an abundant source of water. Since the Yangtze River Delta contains many large and small lakes and swamps, the Yangtze River rivers link them into a unified water system, which means that the Yangtze River Delta region has abundant water sources and provides many conveniences for regional development.

In addition, the Yangtze River can also provide a good energy environment. The development of the Yangtze River Delta has been supported by the fact that the Yangtze River basin has good conditions for the use of hydroelectric resources and can effectively use the flow changes caused by the Yangtze River. It can be said that the Yangtze River provides good conditions for the development of the Yangtze River Delta region.