China has added 100 million acres of fertile land to solve historical problems, and the international community is concerned about it!
Changing the Historical Dilemma: Resolved"The food problem"
Our country, with its large population, was faced with a difficult problem in the last century, that is, how to solve the problem of feeding the people of the whole country. Despite the size of our country, not all places are suitable for growing rice and wheat. In the process of solving this problem, Yuan Longping's hybrid rice has created a miracle of area yield for China. With the progress of science and technology, the way to increase grain production is not only to increase the output value, but also to recover new fertile land. At one point, China managed to reclaim 10 million acres of fertile land, a feat that even caught the attention of the United Nations. It also highlights our efforts to address rapid population growth and food security.
The Difficult Road to Recovery: The Saline-Alkali Problem in the Bohai Sea Region.
The story begins in the Bohai region. The Bohai Sea region is located in China's inland sea, surrounded by land except for the east. This area is known as the Bohai Rim region and covers a total area of 1.12 million square kilometers. However, the largest saline land in the north of our country is here, and it is impossible to grow any food. This is a long-standing problem.
The Bohai Sea region is perennially dry and short of water, and in order to alleviate the local water problem, a large amount of groundwater can only be extracted. However, the over-exploitation of groundwater has led to an influx of seawater into the surrounding area, which is extremely salty, resulting in the formation of large amounts of saline land over time. During the Western Han Dynasty, there were three mega tsunamis, and the tsunami destroyed the local low-lying area, leaving a thick layer of salt on the surface.
Seawater passes through here so often that it is almost impossible to grow any food crops. We invite foreign experts to come and visit the site to find ways to change the nature of the land. However, even foreign experts, after the study, were helpless, believing that the saline-alkali land could not be changed anyway. In general, to improve saline soil, the salt layer on the surface can be eliminated by simply washing the surface with plenty of fresh water. However, the salt layer here is unusually thick and not easily washed off, and the limited local freshwater resources make it difficult to apply.
Innovative Approaches to Land Improvement: Application of Irrigation Methods.
However, our country was not trapped and finally found a solution to this problem. In winter, we irrigate large quantities of alkaline water in saline land. When frozen brine melts, the salt melts first, and the subsequent thawed fresh water washes the salt deep into the soil. Through this irrigation method, the saline-alkali land can be restored to arable land, which provides favorable conditions for the growth of food resources.
The application of this irrigation method has brought about a huge change. By recovering these 10 million hectares of fertile land, the country has succeeded in solving part of its food production problems and has made a significant contribution to world food production. More importantly, it provides a viable option for countries around the world facing similar land problems.
Summary. Overall, our country has made tremendous progress in resolving the problems left over from history. Through Yuan Longping's method of hybrid rice and the reclamation of wasteland, China has achieved a miracle of grain production of one acre and three points of land, and successfully solved the food security problem caused by rapid population growth. However, we cannot ignore the importance of environmental protection. While cultivating fertile land, we should also pay attention to protecting the original ecological environment and avoiding irreversible damage to nature. Sustainable development can only be achieved by taking into account economic development and ecological protection.