The digital technology in the urban field provides a dynamic data information platform for the accurate acquisition and analysis of the spatial carbon source and sink data. The platform can improve the efficiency of all-factor control of the territorial spatial planning and promote the carbon emission reduction in the urban domain. By integrating the advantages of the multi-discipline, the multi-scale and the multi-probability, the digital technology can make full use of various models and sensors to update and run the data of each system anytime. The trajectory data mining in the digital technology of the urban spatial carbon emission is the development direction that needs attention, while the spatio-temporal trajectory mining of the urban carbon emission should focus on the system update, the spatial surface domain feature mining and the big data application. Based on the digital analysis method, it is found that the ecological vulnerability identification and the security pattern construction are the aspects that need to be focused on to establish the ecologically resilient urban space. Using the remote sensing technology to measure the carbon sinks of the same category will have errors due to different geographical features, and this difficulty deserves attention. The accurate measurement of the urban spatial carbon sinks in the future needs to be realized by combining macro and microscopic features and combining multi-platform and multi-temporal dynamic monitoring.

dual carbon goals  /  urban space  /  territorial spatial planning