Ecosystems provide various ecosystem services based on biodiversity. However, biodiversity is facing crises due to anthropogenic factors such as pollution, land use change, and climate change. Threats to biodiversity can significantly impact the provision and stability of ecosystem services, extending beyond simple species decline. To address threats to biodiversity, it is crucial to evaluate how anthropogenic factors affect not only biodiversity but also ecosystem services. This study aims to investigate the energy flux in a post-mining area based on the biodiversity of soil ecosystems and assess its suitability as an evaluation metric. It was observed that as the concentration of the primary pollutant, arsenic, increased, both the biomass of soil organisms and energy flux decreased. Furthermore, soil ecosystem multifunctionality may be negatively affected by pollution. These findings contribute to understanding the impact of pollution on soil ecosystem biodiversity and energy flux in post-mining areas and provide important information for more effective conservation and management of ecosystem services.

• June Wee(OJeong Resilience Institute, Korea University, Seoul 02841, Republic of Korea)
• Yun-Sik Lee(Department of Biology Education, Pusan National University, Busan 46241, Republic of Korea)
• Yongeun Kim(OJeong Resilience Institute, Korea University, Seoul 02841, Republic of Korea)
• Taewoo Kim(Department of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea)
• Jaejun Song(OJeong Resilience Institute, Korea University, Seoul 02841, Republic of Korea)
• Kijong Cho(OJeong Resilience Institute, Korea University, Seoul 02841, Republic of Korea, Department of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea)