“双碳”目标下城市空间数字化技术应用研究进展

 目前，城市空间碳排放的数字化技术中轨迹数据挖掘是需要关注的发展方向。数字化技术为空间碳源和碳汇数据的准确获取和分析提供了动态数据信息平台，可提升国土空间规划的全要素管控效率，促进城市领域的碳减排。基于数字化分析方法发现：生态脆弱性识别与安全格局构建是建立生态韧性城市空间需要重点关注的方面，利用遥感技术测算碳汇过程中的同一类型内容由于地理特征不同带来误差的问题值得关注，未来城市空间碳汇精准计量需要通过宏、微观相结合，多平台、多时段动态监测相结合的方式来实现。

Research progress of urban digitization technology under “dual carbon” goals

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.