The research aims to enhance carbon sequestration in cities to achieve carbon neutrality. By studying urban ecosystems on different scales, they identify factors affecting carbon sequestration. Urban areas have diverse elements that absorb carbon, affected by human activities. The study highlights methods to calculate carbon sequestration in artificial carbon sinks, identifies key factors impacting sequestration, and emphasizes a shift to spatially weighted research. The findings suggest understanding the interaction between artificial and natural carbon sinks to optimize carbon sequestration. This work contributes to reaching urban carbon neutrality goals by enhancing our knowledge of urban ecosystem carbon sequestration.