Abstract: Although open-pit mining offers the advantages of high efficiency and low cost,it causes significant environmental
damage,thereby profoundly impacting regional carbon balance. Monitoring the carbon sink capacity of mining areas is of
great significance for promoting ecological restoration and achieving carbon neutrality goals. However,existing research on carbon
sink monitoring in mining areas often fails to fully consider the specific land use types of mining areas and lacks effective
digital management tools. To address these issues,this study designed and developed a carbon sink monitoring and analysis system
for open-pit mining areas,integrating three core functional modules:mining activity monitoring,ecological environment element
monitoring,and carbon sink monitoring. The mining activity monitoring module is used to monitor the basic data and mining
activity information of the mining area,helping users comprehensively understand the current mining status. The ecological
environment element monitoring module is used to dynamically reflect the spatiotemporal changes of ecological factors,providing
critical data support for carbon sink monitoring. The carbon sink monitoring module adopts a land-use-specific carbon sink
calculation method,enabling dynamic monitoring and analysis of carbon sinks and helping users fully understand the spatiotemporal
characteristics of carbon sink variations. The system employs spatiotemporal grid encoding technology to achieve efficient
management and storage of monitoring data,supporting rapid information retrieval and extraction. Application results in a specific
open-pit mine in Shaanxi Province demonstrate that the system effectively monitors mining activities and their impacts on
carbon sinks,achieving long-term,high-frequency,and multi-scale dynamic monitoring of carbon sinks. This significantly improves
monitoring efficiency and management capabilities. The development of this system provides new technical means for
monitoring carbon sinks in mining areas,demonstrating considerable potential for broader application and promotion.