Abstract
Based on reviewing the theoretical research and construction practice of eco-city, this paper analyzes the system constituent elements from five subsystems, including economic subsystem, social subsystem, population subsystem, resource subsystem and environmental subsystem. The SD model of Xi 'an urban ecosystem was established by system dynamics method, the six main variables selected are as follows: GDP, per capita water resources, energy consumption per 10000 yuan of GDP, per capita public green area, number of doctors per 10000 people and GDPSO2 emissions per ten thousand yuan, different simulation results under different strategies are analyzed. According to the simulation data of ten leading indicators of eco-city construction, the paper calculates the measurement of Xi'an eco-city construction level. It puts forward specific suggestions from economy, resources, environment and security of eco-city construction.
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