From the nineteenth century many scientific scholars have been making hard exploration to establish the scientific system of soil and water conservation in the world

publishing the results and papers on the machanism of soil erosion

raising the Universal Soil Loss Equation(USLE)

and writing the book of 《Soil Erosion》that drawn an outline of the system. However

the subject still remains the level that "employs "the theories from other subjects to explain the problems of soil erosion. Members of the symposium organized by the Soil and Water Conservation Association of Southern China think that the current system of China could be epitomized in the view of comprehension

pracaticality

amphibian and independence.