The top 10 countries in the world with the most land reclamation?

Many countries, such as the Middle East, are in deep distress because of the lack of land and resources.

Dubai, originally intended to build nearly 80 billion artificial land, known as the island of the world. However, due to insufficient technology and huge costs, it eventually ended in failure. The same is true for Japan, which has waged many wars, large and small, because of its small land and lack of resources.

The land struggle has always been the biggest contradiction in the world. South Korea, which is located not far from Japan, also has very little land, but it has been very successful in expanding living space by reclamation of land from the sea. Land reclamation in South Korea has become one of the most important national policies in the country, and the scale of land reclamation in South Korea is much larger than that of Hong Kong and Dubai.

land, using seawater to generate electricity.

South Korea is small on land.

Whether it is based on the naked eye or the data, South Korea is a very small country. According to the comparison, only about 58% of the area of Guangdong Province in China, and only about 100,000 square kilometers in Zhejiang Province. The saddest thing is that there are enough of Guangdong and Zhejiang provinces, and South Korea has more mountains than Guangdong Zhejiang Province, and only the Yellow Sea in the west.

There are a few small plains scattered in the area, so the locals can only settle close to the Yellow Sea.

The scale of land reclamation is large.

In order to solve this huge problem, South Korea began to plan land reclamation. The approach to land reclamation is very different, with dams in the sea being built to gradually increase the land area, rather than the traditional rapid and efficient land reclamation. Today, South Korea's land reclamation is much larger than that of Hong Kong and Dubai.

It is understood that the well-known places such as Songdu, Seokwan, Asan Bay, and Saemangeum are all products of South Korea's land reclamation. The largest is the Samankam reclamation project, which is 500 million square meters, 90 times the size of Dubai World Island and 7 times the total area of Hong Kong.

The role is huge.

The seawater was first enclosed as a reservoir to reduce the erosion of the original land by the salty water. A cofferdam used to reclaim the sea during the process of filling up a reservoir in the sea.

It plays the role of power generation, using the tide rise and fall of the largest hydropower kinetic energy on the earth to generate electricity. The return of one tidal wave is equivalent to the power generation capacity of the Three Gorges, which covers an area of up to 100 million square meters. I have to say that this kind of power generation method is very worthy of reference.

South Korea is now the world's largest land reclamation country, growing by 600 square kilometers in 10 years.

As far as I know, the world's largest land reclamation island is China's Nansha island-building project, so has there been such an action as China's reclamation in the Nansha before?

The answer is that the scale of China's Nansha island-building is unprecedented.

When I checked the various artificial islands built by various countries on the Internet, most of them were in two situations: one was that cities with scarce land built islands in the coastal areas of the city to increase the space for urban development; The other is to reclaim the sea to build transportation facilities such as airports or deep-water ports. These two artificial islands account for the vast majority of the island-building forms, and these two artificial islands are mostly in the economically developed and densely populated coastal shallow sea areas, very close to the mainland, the construction is relatively convenient, the political and diplomatic influence is almost negligible, and you can do it if you have money.

China's Nansha reclamation is a kind of offshore island reclamation, and it is very rare to build islands in the sea far away from the mainland and larger islands.

In general, the construction of islands in the open sea is due to the topography of the original islands, such as slightly expanding the area of the edge of the islands and constructing port facilities, and the construction scale is generally small.

To build an island in the open sea where there are no islands, first of all, it is very expensive, and it is very, very expensive.

In addition to the need to pile up the cofferdam and build the island, the main material is the earthwork, which is basically from the domestic Nansha island reclamation process uses a large number of sediment on the reef, this job without dredging and dredging ships can not do it at all, the reference bulk freight rate, from the mainland will be earthwork to Fiery Cross Reef sea freight of about 75 yuan cubic meters, other costs of about 41 yuan cubic meters, the final unit cost of reclamation earthwork is 116 yuan cubic meters. In addition, the total cost of the project has increased considerably with the addition of two layers of concrete caissons for stacking the cofferdam and the cost of filling with concrete mortar. According to netizens' estimates, I don't know how he calculated, and I don't know whether it is correct or not, but it can be used as a reference to see that it takes 10050 billion yuan to build a Fiery Cross artificial island 3 meters above the water and an area of 5 square kilometers.

Take its intermediate value, even if it is 30 billion yuan.

It is very important to note that there is little economic return on building such islands in the open sea, or there is no economic return, and it is a work of throwing money at it. Who would do this with so much money if political and strategic interests were not taken into account. Even the big bosses of the UAE also know that they will build artificial islands and sell villas, develop travel and travel, real estate, and commerce, and Dubai's money is also money, and they will not do it without income.

You may often hear that the Netherlands occupies a lot of land reclamation, so I think that the Netherlands has a lot of land reclamation. In fact, many parts of the Netherlands are not reclaimed from the sea, but reclaimed, and over the centuries the Netherlands has built 1,800 kilometers of barrages, increasing the land area by 600 square kilometers. 20 percent of the Netherlands was reclaimed from the sea, while Japan's reclamation after World War II was frenzied and consisted mainly of artificial islands above water level.

It is estimated that Japan has claimed a total of 120,000 square kilometers of land from the sea over the past 100 years, so the country with the largest land reclamation area in the world is Japan.

The typical one is the Netherlands, but there are also many other countries that have land reclamation from the sea, such as Denmark and Belgium.

In order to survive and develop, the Dutch people tried their best to protect the originally small land and avoid the "catastrophe" when the sea tide rose. They have been fighting with the sea for a long time, and they have reclaimed the land from the sea. As early as the 13th century, dikes were built to hold back the sea, and then the water in the cofferdam was drained by wind-driven water wheels.

Over the centuries, the Netherlands has built 1,800 kilometres of barrages, adding more than 600,000 hectares of land. Today, 18% of the Netherlands is reclaimed from the sea. The words "perseverance" engraved on the coat of arms of the Netherlands aptly portrays the national character of the Dutch people.

It can't be said that it is the one, like the neighboring country of the Netherlands, Belgium is also a big land reclamation company, but the Netherlands has 1 4 land below sea level, and the existing 1 3 land is below 1 meter above sea level, and the sea area accounts for 18% of the country's land, which is more prominent in this regard.

The Macao Special Administrative Region of China has more than doubled its size through land reclamation.