Environmental governance and protection are issues of great concern to the world today, and land reclamation is often criticized because it greatly destroys the local marine environment, and the cost of land reclamation is also very high, so if it is not forced or needed , Generally will not reclaim the sea to make land.
Friends who travel to Japan should find that many well-known large cities in Japan, such as Tokyo, Osaka, and Nagoya, although the urban areas are close to the sea, there are almost no scenic beaches. It is not very beautiful. The offshore part is full of ports and factories built by reclamation and land reclamation. In fact, this is very common in Japan. It is not difficult to find out how serious the reclamation is on the coast of Japan.
As we all know, Japan is a mountainous island country. The mountains and hills exceed 70% of the total land area, and the rivers are short and the water flow is not high, so Alluvial plains are often relatively small and scattered. The Kanto Plain, the largest area, is only 16,000 square kilometers. However, Japan has a large population of nearly 130 million people. Land is used for agriculture, industry, and residence. What should I do? Reclamation of the sea to make land.
TOkyo
名古屋
Osaka
11d2a0#
0a04ee4#北九州
Kagoshima
Hiroshima
It can be seen that Japan’s large and medium cities are basically port cities, especially several large metropolitan areas. Basically, large-scale reclamation of the sea and land has been carried out on the coastal areas of the urban areas, and only then have ports and chemical bases been established. Nearly 90% of the coastline of the most famous Tokyo Bay has been reclaimed from the sea. Tokyo Haneda Airport, Nagoya Central International Airport, and Osaka Kansai International Airport are all reclaimed from the sea.
from 1974 to 1974, according to statistics only The total area of land reclamation in Japan is close to 1.2 billion square meters, which is equivalent to the area of Hong Kong, China, which is quite crazy. Although Japan has not stopped the pace of reclamation and land reclamation, the scale and intensity have been much smaller. After all, when the entire society did not pay much attention to environmental protection at the time, such large-scale reclamation did not cause strong social opposition. Today, unlike the past, it is no longer easy to continue frantically reclaiming land. Moreover, with the advancement of technology, food production has increased rapidly, and industrial products are also somewhat surplus. Reclamation of land is not so urgent anymore.
What’s more interesting is that the second largest lake in Japan, Hachirangata, disappeared due to the fiery land construction project at that time and became Japan. People's lingering pain.
Hachirangagata is a saltwater lake with an area of more than 220 square kilometers. The southern part is connected to the Sea of Japan. In order to increase the area of rice cultivation, Chiba Prefecture began reclamation of cofferdams in 1957, but it was The Dutch method first drained the internal lake water and then filled with soil to transform it into farmland. Although the amount of work was much smaller, this also caused the farmland to be below sea level. The 1983 Sea of Japan earthquake triggered a tsunami and seawater poured into this farmland. The villages in and inside were devastated, and Japan had to spend a lot of money to rectify it.
But sadly, soon after the completion of the project, agricultural technology improved, and Japan’s rice production began to surplusAt that time, land farming at that time seemed meaningless now, and the second largest lake in Japan disappeared. This price can be regarded as a punishment.
八郎順Current situation
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