There is a big difference between mainstream school and soil school .The former is the Chinese Academy of Sciences as the representative and the latter is me as the representative.
I maintain that “land resources is not limited”, but can be regenerated and can be produced on a large scale and at high speed under factory conditions , Academically, the deeper idea is if man can exist without nature and if man can live without resources on the Earth. Among all the I newspapers and magazines and books as well as literatures that I have read, “land resources is limited” is the idea of all of them whenever talking about land（especially cultivated land）. So yes or no is the most principle difference between mainstream school and the soil school. This point is the watershed demarcation and touchstone of the two schools.
In direction of research I maintain that we should face the most important and realistic problems in China and don't forget that “large population and a little land”is our national basic condition .To solve the four big problems in our nation is the most important task that needs to be put before every system .I think that road map loses contact with Chinese reality. In fact if we don't firstly solve the four big problems ,especially agriculture is the most important among the important issues ,it is not valuable to establish whatever“systems”.
In terms of method as soil school is a non pedantic or unacademic school, I maintain using one technology to solve many problems instead of solving one at a time separately. Because the world is unified and comprehensive, why do we have so many departments, such as agriculture, environmental protection, water conservancy, jobs and so on? In my view these problems are the different sides of the Chinese problem .But modern science is divided into more and more disciplines, and the fight and argument between different modern scientific system schools are getting more and more serious .These are not good things.
In terms of the relation between cause and effect, I approve of accomplishing everything by doing nothing. When we think something is correct, then we need to do it until it is completed. This is called “only ploughing without caring for the harvest” and then the results will come ?naturally. On the other hand, the target of modern science is very strong and its operating process is very clear. Although we cannot say it is not good, sometimes, the results run counter to one's desire. Up to 2050 we will wait and see if 8 large systems will be realized in the road map written by CAS.