1.Background
The 14th Five-Year Plan period is a critical period for China to achieve carbon peaking.From the perspective of end users of carbon emis-sions,about 80%are concentrated in cities,which makes the con-struction of eco-cities the only path for China's sustainable develop-ment.Nowadays,low carbon has become the consensus of eco-city construction.China is the country with the most advantages in eco-city construction,which provides holistic solutions and methods for the realization of the goal of eco-city construction under the coordi-nation and integration of the state system,political system,and plan-ning system.