Fourth strategic significance of AST：The occurrence of artificial soil technology makes the capability of human repairing the earth greater than that of damaging it for the first time.
Since industrial revolution, the west capitalist powers have promoted the development of productive forces and created unprecedented human civilization on one hand, and on the other they have tried to meet the unceasingly swelling consumption lust of the people at the cost of sacrificing the natural environment and developing resources in a plunderous way. Because people do as they please, their actions have led to many consequences and now they have to think over what have done, thus coming into being many spontaneous green environmental protectionists or what so ever and relevant regulations by various governments. The concepts of green foods and organic agriculture have been acknowledged by the public. Anything has its dual nature and human behavior is a double-edged sword. If we say the process of developing the economy and damaging the natural environment is a forward process, then the artificial soil mechanism is a reverse process, i.e. a process repairing the natural environment. Taking China as an example again, if 10 million mu land is made each year, the mechanism of artificial soil is like a “black hole” that swallows more than 5billion tons of solid waste from factories, mining and construction and other industries, household rubbish (except harmful substances) as well as about 0.5 billion tons of organic wastes (including human and animal wastes). What comes out of these wastes is soil, which is the most needed to repair the earth. This is to say the rate of damaging the earth is about the same as the rate of repairing it, thus turning the trend of degrading the natural environment radically.
During the initial period of the artificial soil project, all of the “ ecological burdens” cannot be eliminated at once except for slowing the soil erosion rate, containing the spreading of desertification of land and gradually restoring and improving the ecological environment. With the progress of the artificial soil project as well as the improvement of science and technology and the appearance of new technology, especially the change of people’s ideas and concepts and the establishment of related compulsory laws and systems, things will change in favor of restoring the natural ecological environment. In economic life, waste will become less and less. With the increase of economic capability, human beings will strengthen the repairing of the earth and the method for doing it will be improved. It is completely possible to restore our homestead ---- the earth to its original living conditions. As for water and air pollution, the technical problems have been resolved. As long as people’s concepts are changed and people are willing to invest and laws are executed strictly, there won’t be any more problems.