From the perspective of a symbiotic-based theory,the process of city and countryside integration was dialyzed,the vitality was given to city and countryside system.Thereby,central cities,small and intermediate towns and rural areas would become the symbiotic units for energy exchange and information communication.Finally,the measures of dynamic bidirectional stimulus between the city and countryside symbiont and the environment and the mechanism of symbiotic interface optimization were explored positively,to accelerate the symmetrical and reciproc...
