Aboveground Carbon Stock Estimationinthe Mangrove Ecosystem of the Historic River, Kayu Ara Permai Village, Sungai Apit District, Siak Regency, Global warming is one of the main drivers of climate change, with coastal ecosystems such as mangrove forests playing a key role in mitigating its impacts through carbon sequestration. This study aimed to analyze the biomass and carbon sequestration pot…