A Multi-objective System Dynamic Model for Urban Ecological Water Demand Simulation: a Case Study of Dalian City, China

摘要

Water crisis has become the critical point in limiting cities' economical and social development nowadays. With the sharply increasing conflict of supply and demand of water resources, the prediction of ecological water demand is becoming an important part in urban water resource management Thus, based on the overview of theories and methods for the calculation of urban ecological water demand, this paper introduces a multi-objective system dynamic model which combines system dynamic model with multiecosystem theory to simulate urban ecological water demand, with Dalian City, China as a case study. It is demonstrated that the proposed model can be an applicable and flexible method and it also provides an alternative approach for sustainable urban water utilization which can reconcile the conflict between urbanization process and water resource restraints.