Based on the current situation of water resources in Suzhou City and aiming to maintain and protect the normal basic functions of river net eco-system,a dynamic model related with water resources,society,economy and ecosystem was established to evaluate water resources carrying capacity in Suzhou City by ensuring eco-environmental water demand.Characterizing with the factor of social economy,the dynamic variations of the water resources carrying capacity in Suzhou was simulated with the rule of Demand is ba...