Fig 1.
Diagram of the water cycle in each subsystem.
Fig 2.
The causal-loop diagram of the Chengdu water cycle system.
Fig 3.
Diagram of Chengdu water resources supply and demand system.
Table 1.
Interpretation of the key parameters.
Table 2.
Relative errors of the main variables between simulated data and measured data.
Table 3.
Variable standardization values for Chengdu between 2008 and 2018.
Fig 4.
The simulated S:D ratio from 2005 to 2035.
Fig 5.
Influence of nine key variables on the water supply and demand ratio (current simulation value).
Table 4.
Parameters used for driving factors identification.
Fig 6.
Optimization simulation results of household water conservation.
Fig 7.
Optimization simulation results of industrial water conservation.
Fig 8.
Optimization simulation results of agricultural water conservation.
Fig 9.
Optimization simulation results of unconventional water resources use.
Table 5.
Integrated optimization scenarios.
Fig 10.
Integrated optimization simulation results.