摘要: The 20％ of population in the world live in karst environment, which forms a special system of man and land, i.e., the formation of karst terrain in which people involved. The material flow and energy flow are slow-speed flows in natural karst environment, but they are accelerated by the function of scientific and technological advance in a social-karst environment, The dynamic coupling of two flows form a huge, non-equilibrated and open system,